#Armstrong Number in Python

[juliebowie]

Introduction to Armstrong Number in Python

Summary: Discover the concept of Armstrong Numbers in Python, their unique properties, and how to implement a program to check them. Learn about basic and optimised approaches for efficient computation.

Introduction

In this article, we explore the concept of an Armstrong Number in Python. An Armstrong number, also known as a narcissistic number, is a number that equals the sum of its own digits, each raised to the power of the number of digits. 

These numbers are significant in both programming and mathematical calculations for understanding number properties and algorithmic efficiency. Our objective is to explain what an Armstrong number is and demonstrate how to implement a program to check for Armstrong numbers using Python, providing clear examples and practical insights.

Read: Explaining Jupyter Notebook in Python.

What is an Armstrong Number?

An Armstrong number, also known as a narcissistic number, is a particular type of number in which the sum of its digits, each raised to the power of the number of digits, equals the number itself. This property makes Armstrong numbers unique and exciting in mathematics and programming.

Definition of an Armstrong Number

An Armstrong number is defined as a number equal to the sum of its digits; each raised to the power of the total number of digits. For example, if a number has 𝑛 digits, each digit d is raised to the 𝑛th power and the sum of these values results in the original number.

Explanation with a Simple Example

Consider the number 153. It has three digits, so we raise each digit to the third power and sum them:

Since the result equals the original number, 153 is an Armstrong number. Another example is 370:

Difference Between Armstrong Numbers and Other Numerical Concepts

Armstrong numbers are distinct because they involve the specific property of digit manipulation. Unlike prime numbers, which are based on divisibility, or perfect numbers, which relate to the sum of divisors, Armstrong numbers focus solely on digit power sums. This unique characteristic sets them apart from other numerical concepts in mathematics.

How to Determine an Armstrong Number?

To determine whether a number is an Armstrong number, we need to verify if the sum of its digits, each raised to the power of the number of digits, equals the number itself. This concept may seem complex at first, but with a clear understanding of the process, it becomes straightforward. 

Let's break down the steps and explore the mathematical method used to identify Armstrong numbers.

Mathematical Formula

The formula to check if a number is an Armstrong number is: 

Here, d1,d2,…,dm​ represent the digits of the number, and 𝑛 is the total number of digits.

Step-by-Step Breakdown

Determine the Number of Digits: First, find the total number of digits, nnn, in the given number. This is crucial as each digit will be raised to the power of nnn.

Extract Each Digit: Extract each digit of the number. This can be done using mathematical operations like modulus and division.

Raise Each Digit to the Power of nnn: For each digit, calculate its power by raising it to nnn.

Sum the Powered Digits: Add the results of the previous step together to get the sum.

Compare the Sum with the Original Number: Finally, compare the sum with the original number. If they are equal, the number is an Armstrong number.

Example Calculation

Let's determine if 153 is an Armstrong number:

Number of digits (n): 3

Extracted digits: 1, 5, 3

Raised to the power of n:

Sum of powered digits: 1+125+27=1531

Comparison: The sum, 153, equals the original number, confirming that 153 is an Armstrong number.

This systematic approach helps in accurately identifying Armstrong numbers, making the concept both interesting and accessible.

Also Check: Data Abstraction and Encapsulation in Python Explained.

Armstrong Number Algorithm

An Armstrong number, also known as a narcissistic number, is a number that is equal to the sum of its own digits each raised to the power of the number of digits. To determine if a number is an Armstrong number, we follow a specific algorithm. 

This section outlines the steps involved and discusses the efficiency and complexity of the algorithm.

Outline of the Algorithm

To check if a number is an Armstrong number, follow these steps:

Determine the Number of Digits:

First, calculate the number of digits (n) in the given number. This step helps in raising each digit to the appropriate power.

Calculate the Sum of Digits Raised to the Power of n:

For each digit in the number, raise it to the power of n and sum these values. This step involves iterating through each digit, performing the power operation, and accumulating the results.

Compare the Sum with the Original Number:

Finally, compare the calculated sum with the original number. If they are equal, the number is an Armstrong number.

Key Steps in the Algorithm

Extracting Digits: We extract each digit from the number, which can be done using modulus and division operations.

Power Calculation: Raise each extracted digit to the power of the total number of digits.

Summation: Accumulate the results of the power calculations to form the total sum.

Comparison: Compare the accumulated sum with the original number to determine if it is an Armstrong number.

Efficiency and Complexity

The Armstrong number algorithm is efficient for small to moderately sized numbers. The primary operations involve basic arithmetic, such as modulus, division, and exponentiation, making the algorithm computationally light. The time complexity is O(d), where d is the number of digits in the number. 

This is because the algorithm processes each digit exactly once. For large numbers, the time complexity may increase, but it remains manageable due to the simplicity of the calculations involved.

Implementing Armstrong Number in Python

To determine whether a number is an Armstrong number, we need to implement a straightforward approach in Python. Armstrong numbers, also known as narcissistic numbers, are numbers that equal the sum of their own digits each raised to the power of the number of digits. 

Here, we’ll explore a basic implementation in Python and discuss how to optimise it for better performance.

Basic Implementation

Let’s start with a simple Python program to check if a number is an Armstrong number:

Explanation of the Code:

Function Definition: The function is_armstrong_number takes an integer number as its parameter.

Convert Number to String: We convert the number to a string using str(number) to easily access each digit.

Count Digits: We determine the number of digits using len(digits).

Initialise Sum Variable: We initialise sum_of_powers to zero to accumulate the sum of each digit raised to the power of num_digits.

Calculate Sum of Powers: We loop through each digit in the string, convert it back to an integer, raise it to the power of num_digits, and add it to sum_of_powers.

Check Armstrong Condition: Finally, we compare sum_of_powers with the original number to determine if it is an Armstrong number.

Optimised Approach

While the basic implementation is easy to understand, it may not be the most efficient for larger numbers. Here are some optimisations:

Use List Comprehension: Python’s list comprehension can make the code more concise. Here’s an optimised version:

This version uses a single line to calculate sum_of_powers using list comprehension, making the code more compact and potentially faster.

2. Precompute Powers: For very large numbers, precomputing powers for digits (0 through 9) and reusing them can reduce computation time.

3. Avoid String Conversion: If working with extremely large numbers, you might want to avoid converting numbers to strings repeatedly. However, this is a trade-off between readability and performance.

By employing these optimisations, you can enhance the efficiency of the Armstrong number checking algorithm, especially for larger inputs.

Frequently Asked Questions

What is an Armstrong Number in Python?

An Armstrong Number in Python is a number that equals the sum of its digits each raised to the power of the number of digits. For example, 153 is an Armstrong Number because 1^3+5^3+3^3=153.

How can I check for an Armstrong Number in Python?

To check for an Armstrong Number in Python, calculate the sum of each digit raised to the power of the total number of digits. If this sum equals the original number, it’s an Armstrong Number.

What is the efficiency of the Armstrong Number algorithm in Python?

The Armstrong Number algorithm in Python is efficient for small to moderate numbers with a time complexity of O(d), where d is the number of digits. The primary operations include basic arithmetic and exponentiation.

Further See: Understanding NumPy Library in Python.

Conclusion

In this article, we've explored Armstrong Numbers in Python, highlighting their unique property of being equal to the sum of their digits raised to their respective powers. We demonstrated how to implement and optimise a Python program to check for Armstrong Numbers. Understanding this concept and its implementation enhances both mathematical knowledge and programming skills.

[harisystems]

Python - Chat GPT + Python Programming - Armstrong Number

[hello-skhossain]

Armstrong Numbers Explained: Step-by-Step Guide in Python Programming La...

[anra-thejourneyman]

A ghost of a border

Historic boundary between Scotland and England defiled and forgotten

ANDY MURRAY

The Herald

Monday 20 October 1997

AT THE WESTERN end of Europe's first artificial frontier an old wheel of dangling perished rubber is colonised by primitive vegetation and a watering can, probably last used in the heyday of Buddy Holly, is all but assimilated into the woodland humus.

Sentimentality had lured me to the jungle here. Home Rule was on the horizon and I wanted to celebrate by tramping along the Scots Dike, where my ancestors had once plundered. Alas, scheduled ancient monument number 294 is but a ghost of the border that was delineated in 1552 - ''the last and fynal lyne of the particion'' of the ''Debatable Land''.

Nearby, Langholmites have symbolically patrolled their burgh boundaries every year for generations to ensure that they have not been encroached. Scotland's least well-known historical monument has been defiled, never mind encroached. Its mutilation is lamentable. This divider of national identities, built by international treaty to pacify a no-man's land once regulated by cut-throats, is vanishing from the topography.

Until the foresters came, the Scots Dike was a fascinatingly significant and very conspicuous earthen rampart running between the River Sark and the River Esk; a memorial to terrain that had once been as turbulent as Hell's Kitchen would become. Between 10 and 12 miles long by three-and-a-half miles at its broadest part, the debatable land was a hotbed of desperados, bounded on the south by the Solway estuary, and in the north by Tarras Moss, which Hugh MacDiarmid would later describe as ''a Bolshevik bog''.

Felonious Grahams and Armstrongs ran this swathe of marshland; bereft of patriotism, these godfathers of rustling and pillage switched their allegiance between England and Scotland by sniffing the wind. In 1542, when defeated Scottish soldiers fled the swamps of the Solway Moss, reivers murdered many of them ''and for the rest took horses, boots and spurs, and any doublets worth taking.''

Charters of the twelfth, thirteenth and fourteenth centuries put the debatable land in Scotland, but England often occupied it. Eventually, it became neutral territory, a disputed principality ruled by hoodlums. Livestock grazed the fields by day but had to go by nightfall, lest they be pinched by Clym and the Cleugh, Hobbie Noble or Jock o' the side.

In 1543 Henry VIII demanded Canonbie priory, and seven years later the English warden tried to annex the debatable land. His counterpart in Scotland then burned every house or shed in sight.

''All Englishmen and Scottishmen are and shall be free to rob, burn, spoil, slay, murder and destroy all and every such person or persons, their bodies, buildings, goods and cattle as do remain upon any part of the debatable land, without any redress to be made for the same,'' the march wardens proclaimed.

Settlement came in 1552 after the Treaty of Norham Commissioners and a mediator, the French Ambassador, Claude de Laval, met at Edward VI's mansion in the south of England to draw lines on maps. Both the Scotsman and the Englishman wanted the lion's share of the demilitarised zone, but the Frenchman decided on a compromise. A ''greitt cord of gold and silk'' was bought to ''hing the greite seill of the Confirmatioun, upon the treaty.''

In pre-JCB days the men who dug the Scots Dike were probably thirsty by the time they were finished. Two parallel ditches were excavated and the earth was piled up into the middle to form a mound between four and six feet high, and eight to nine feet wide. Diggers started at either end and planned to meet in the centre, but Monty Python-like, they failed to join up by 21ft.

Stones bearing the arms of Scotland and England were erected at either end of this forerunner of the African and US state lines, and eight other sandstone boulders were walloped deep into the bogland. It was the long goodbye for the likes of Ill Drooned Geordie, Wynking Will, Jok Pott the Bastard, Nebless Clem and Buggerback.

Stinkhorns rule now, it is hard to locate some of the lichen-bedecked stones in this untended scrubland. An uprooted birch trespasses in Scotland like an ent out of Lord of the Rings. Fog belongs here, along with damp-loving organisms that grow out of glaury holes. There is something eerie about the sheep that graze in silence in the English glades.

Douglas of Drumlanrig had spearheaded the partition of the debatable land. In Scotland foresters are at work on the estate of his descendant, the Duke of Buccleuch; they cut right up to this ancient dividing line: brushwood sprawls the border, oaks that grew out of the ''fynal particion'' have been reduced to trunks. Several saplings still stand like skinny sentinels. It's like a scene out of Indiana Jones.

You have to zig-zag between Scotland and England to dodge obstacles. A burn gushed out of the gouged dike. Much of the northernmost ditch has been erased, long since colonised for drainage of successive plantations. Fences criss-cross the dike and the lack of stiles indicates a dearth of walkers, as does a rickety bridge that cannot have seen human feet for decades (and, ultimately, the barmaid at the Marchbank Hotel at the end of the line, who tells me I am the first to come in and say I have walked the dike).

A deer darts through debatable land from Scotland into England, where tax may be 3p cheaper. I trudge between ditches, neither in England or Scotland, stateless, in limbo until I get to the next marker stone, which is two-and-a-half-feet proud of the ground next to a decaying jumble of barbed fence posts.

Towards the end of this Krypton Factor hands the ultimate sacrilege: a blue plastic container labelled Teat Dep affixed to a tree - obviously cannibalised as a dispenser of pheasant feed.

Our border is almost obliterated, although the rot set in many years ago. The eastermost stone had long disappeared by the First World War when James Logan Mack, an Edinburgh academic, first recorded the vandalism. Astonishingly, a service railway line had been lain down on top of the dike.

''The method of dealing with the removal of tree trunks was to fasten chains to them, which in turn were attached to a locomotive, and as they were dragged away they tore to its very foundation this precious old relic of the sixteenth century,'' Mack recalled in his book The Border Line in 1924.

''Had its destruction been deliberately encompassed, it could hardly have been done in a more effective manner.''

Mr Denis Male, depute-convener of Dumfries and Galloway Council, has urged the authorities on both sides of the border to consider reinstating the crumbling dike and establishing amenity walkways for tourists. An OS map of the haunts of the Border Reivers is due out, and a clan centre is proposed for Langholm as part of ''Reiver 2000'' to mark the millennium.

''There could be no better way of celebrating the end of a thousand years of marking where Scotland meets England, particularly when devolution is in the pipeline,'' says Mr Male.

I do not envy him his task. I rang Historic Scotland's press office four times, but as I wind up I still wait clarification from north of the dike. South of the dike, English Heritage says it was scheduled as an ancient monument in 1949. The organisation advocates ''good management'' and its spokesman was concerned to hear of dereliction.

The Registrars of Scotland have no recorded title. Theoretically, ownership runs to the middle of the mound, but what mound? Scheduling came too late for this particular part of our national heritage, and dubiety over who owns what in the border scrubland proves that it is still debatable land.

Mr Gareth Lewis, factor of Buccleuch Estates says: ''You would not plant trees along there in this day and age. People did not value such things as the dike last century.

''We have an open access policy, although the dike is not terribly interesting and there is no focus, such as a place where some famous reiver was hanged, which might not endear it to tourists.''

The saddest comment made to me during my research into the annihilation of the most interesting part of the Scotland-England border came from a local worthy. Mr Raymond Kerr said ruefully: ''My feeling is that folk don't care any longer. They would tidy it up quick enough if the Queen was coming.''

Dumfries and Galloway was one of only two parts of Scotland to say no to tax-raising powers for a Scottish parliament. Perhaps the ruination of south-west Scotland/'s own mini-Hadrian's Wall serves such as self-effacing populace right.

[hellojavatutorialsthings-blog]

Arm Strong number program java.mp4

[python-program]

डाटा साइंस

डाटा साइंस आज के समय में डाटा ही धन है क्योंकि आजकल हम सुबह से लेकर सोने तक डेटा का उपयोग करते हैं आप जिस मोबाइल का उपयोग करते हैं उसमें केवल डाटा ही तो है हर व्यक्ति गूगल सर्च के माध्यम से डाटा ही तो प्राप्त करता है इस प्रकार से डाटा धन से भी ज्यादा मूल्यवान हो चुका है हम 1 मिनट भी मोबाइल फोन लैपटॉप के बिना नहीं रह सकते क्योंकि इन चीजों पर हम पूरी तरह से निर्भर हो चुके हैं अब इनके बिना जीवन की…

[lozenger8]

Does anyone else find they end up liking later iterations or versions of archetypes more than the originals?

Like Monty Python. I know a decent number of Monty Python jokes and references. I’ve watched two of the movies. I tried to watch the sketch show(s). But I don’t find them especially funny. I just don’t.

But so many of the sketch comedy shows that have clearly been influenced by them? Kids in the Hall? MADtv? That Mitchell and Webb Look? Armstrong and Miller? Smack the Pony? Hilarious to me, with a much larger hit to miss ratio. I can see that they would not exist if it had not been for Monty Python, that in different sketches they display similar sensibilities. And yet. 

Han Solo as a character archetype. Eh, I can take him or leave him tbh. He’s fine. I don’t hate him. I did not fall in love with him. But other snarky heart-of-gold rogues? Sign me up, babyyy. I will love them dearly, it’s almost guaranteed. Yet I know a lot of those characters are probably based more on Han than any other character given the pop cultural impact of Star Wars.

I like Elementary’s version of Sherlock Holmes more than any other. I like musicians who try to sound like Leonard Cohen more than I like Cohen’s music. I like most newer commentary YTers compared with their antecedents. 

Is this the reverse hipster? i only like it now that it’s cool? Please tell me I’m not alone.

[watching-pictures-move]

Movie Review | Nightmare Sisters (DeCoteau, 1988)

This review contains mild spoilers.

David DeCoteau's Nightmare Sisters opens with a pretty hideous racial caricature, where an actor playing a fortune teller does a terrible Indian accent. Now, this was made in the '80s, the same decade we got Long Duk Dong in Sixteen Candles and Takashi in Revenge of the Nerds, so this level of racism is nothing out of the ordinary. But in those cases, you could at least argue that the performers were putting enough effort into their performances to make there scenes at least watchable. The guy here is teeeeerrible and his scene goes on for sooooo long. Anyway, the scene features a widow asking about her probably dead husband, who when summoned has his dick bitten off by an evil spirit, who then kills the fortune teller, making it the hero of the movie, or at least this scene. Because this is a pretty low budget affair, most of this is thankfully implied.

Thankfully, the movie gets quite a bit better after this point, as we move to a group of extremely dorky sorority sisters who come into possession of the fortune teller's crystal ball. These sorority sisters are played by established scream queens Linnea Quigley, Brinke Stevens and Michelle Bauer, who are specialists in these kinds of movies, and from whom I'd seen and enjoyed a few things. Quigley is one of the best parts of the great zombie movie Return of the Living Dead, which on top of being super entertaining and funny I've grown to find surprisingly moving with my last couple of viewings. (Great movies have a way of sneaking up on you like that.) Stevens is of course in the feminist slasher movie Slumber Party Massacre, which spells out the subtext of these movies by having the killer's weapon be an extremely phallic drill. And Bauer is in Cafe Flesh, which is not a horror movie but a porno, but likely a much more palatable one to normie viewers given its emphasis on mise-en-scene and elaborately choreographed stage performances over gynecology. I was happy to see all three present, is what I'm saying.

These girls, left with nothing to do over the weekend, decide to throw a party and invite the only guys they know, some real Robert Carradine Revenge of the Nerds motherfuckers who are about as dorky as they are and similarly at the bottom rung of their fraternity. Of course once the party starts, they foolishly mess around with the crystal ball and the girls get possessed by the same spirit. Now, the girls were extremely dorky previously and had appearances that lined up with that image, with Quigley's buckteeth, Stevens' dangerously pointy glasses and Bauer's fatsuit. They seemed like perfectly nice people and might have had lots of inner beauty for all we know, but that doesn't photograph as well nor does it appeal to the horndogs in the audience, so once they get possessed they get a lot conventionally hotter and spend the rest of the movie in varying states of undress. This movie probably has more nudity than any non-porno I've watched in quite some time. Hell, right after their transformation, the immediately smear peach pie over their breasts and then spend what seems to be ten minutes bathing together while the Anthony Edwardsish heroes watch through a peephole. Apparently there's a TV-edit that excises all the nudity. I haven't watched it and can only assume it's ten minutes long.

It's worth noting at this point that DeCoteau is gay and this plays like a really broad attempt at pandering to the predominantly straight target male audience for these kinds of movies. As parodic as the results may be, I must shamefully admit that he has us dead to rights. Of course, given the title, something must be off, and as the homophobic meathead fraternity brothers who show up to give the male leads a hard time find out in the least pleasant way possible, it turns out that the girls have turned into succubi. Emphasis on the "suck", as the song that plays over the opening credits suggests. Or perhaps a more accurate name would be "bite-ubi". Given that they, you know, kill their victims by biting their dicks. Their "wing wangs", as one of the girls says while possessed. I think another uses the phrase "python of love", but I neglected to write down the complete line of dialogue so I could be wrong. DeCoteau is not a cruel man, so he spares us the sight of this act, but he taps into very real male anxieties in this movie.

Of course, to wrap this all up, the Curtis Armstrong, Lamar Lattrellish heroes enlist the help of an exorcist whose role is extremely self aware but not unamusing, and the situation is resolved with some pretty lo-fi special effects. (Okay, I lied, the heroes are a lot more presentable than Armstrong. Also Lamar Lattrell is actually the character's name and not the actor's, the heroes are all pasty white dudes and the only person with a musical number is Quigley. I ran out of Revenge of the Nerds references, I'm sorry.) This is an extremely unambitious affair, having been shot in four days as a challenge to use up short ends left over from the production of Sorority Babes in the Slimeball Bowl-a-Rama, but I had a good time. While I won't pretend that the shamelessly pandering nudity didn't have an effect on me, what really sells this movie is the presence of Quigley, Stevens and Bauer, who are extremely winning in playing their characters both pre- and post-possession. (I think the term "adorkable" applies to the former.) My technical knowledge is lacking here, but while I understand there were inconsistencies in the film stock used, I didn't find that to manifest in the film's (not particularly accomplished but also not unattractive) visual style. And the movie has a nice, laidback sense of humour, which (aside from the opening scene) sustains the good vibes over the brief runtime.

[recurring-polynya]

Tagged by @gizkasparadise

1. Zodiac Sign: Cancer, I am a sensitive homebody crabbo girl

2. Last thing I googled: "pirate flag” (for drawing purposes)

3. Song stuck in my head: nothing at the moment

4. Favourite musicians: Lord Huron, Neko Case, Brian Fallon, Of Monsters and Men, Head and the Heart,

5. Do you get asks: occasionally, I love them

6. Amount of 💤: 7-8 hrs

7. Lucky number:  11 maybe?

8. What are you wearing: jeans, an orange t-shirt with cats that are also sushi on it

9. Dream Trip: staycation, plz.

10. Instruments you play: trombone, badly, many years ago

11. Languages you speak: English, high school German, C++, Python, Fortran

12. Favourite song: Right now it’s “Wolf Like Me.” I got three different versions (TV on the Radio, Shovels and Rope and Gutter Swan) on my standard playlist and I love them all

13. Random fact: I met Neil Armstrong once for work-related reasons. He was super duper nice.

14. Cats or dogs: doggos, although I am currently without

15. Aesthetic: the kind of lady engineer who dresses like a dude engineer, all khakis and button-down shirts and cardigans, it’s not good, it’s just who I am

16. 🎶 playlist on shuffle:

first 10!

1. Hungover in the City of Dust - Autoheart 2. Our Swords, Band of Horses 3. Temptation, New Order 4. American Slang - the Gaslight Anthem 5. Total Disaster - Rhett Miller 6. Murder in the City - the Avett Bros 7. This Land is Mine - Dido 8. Electric Love - Borns 9. Fa Fa - Guster 10. Dead Ends - Radical Face

tagging: I dunno, @diademchiofthetripod do you like these things? (if there’s anyone out there who likes getting tagged in these things, lemme know)

[juliebowie]

Learn more about Armstrong Number in Python

Learn how to identify Armstrong numbers using Python with this step-by-step guide. This tutorial covers the basics of Armstrong numbers, along with practical code examples to help you understand the concept and implement it in your own projects.

[harisystems]

Python - Chat GPT + Python Programming - Armstrong Number

[kodebinary]

Armstrong number in python

Armstrong number in python

A number with the below property is called Armstrong number of order N. Where the sum of the power of each digit with the number of its digits. abcd...(n digits) = a^n + b^n + c^n + ... For example, Armstrong number of order 3 is a number in which the sum of cubes (power of 3) of its digits is equal to the number itself. Let us take an example Armstrong number check the sum of cubes of its…

[cloudpunjabi]

Armstrong number is the number that is the sum of its own digits each raised to the power of the number of digits in that number. The number can be of any base in the number system. It is also known as the Narcissistic number.

For example, 153 is an Armstrong number. It has 3 digits so each digit of the number is raised to power 3

1*1*1+5*5*5+ 3*3*3 = 153

0, 1, 371, 407 are some other examples of Armstrong numbers.

[tencentdeduction]

BC's Vaccine Card

On September 7th, 2021, the Government of BC revealed the BC Vaccine Card, which uses the SMART Health Card QR code format. This page describes what I found by examining BC's card.

Getting Your Card

To get your BC Vaccine Card, you need to visit https://gov.bc.ca/vaccinecard, provide some identifying information, then you're brought to a page that provides a website where you can get your card, and presumably show it at your gym or at a restaurant. Downloading the card to your phone so you don't need to log in is a little awkward. There isn't a convenient way to save it to your phone, so I just took multiple screen shots and stitched them together as a PDF, which I saved in the Files app in iOS. I added a Shortcut to add an icon on my homescreen to make it convenient to use. It would be a big improvement if you could add this to your Apple Wallet or Health app, or the WalletPasses app on Android. Even just a mobile formatted PDF would be better.

Examining the Card

I took a screenshot of my card, and used a simple Python script I cobbled together based on an example online by marcan2020. Here is the (anonymized) data I got out of my card:

JWS Header: { "alg": "ES256", "zip": "DEF", "kid": "XCqxdhhS7SWlPqihaUXovM_FjU65WeoBFGc_ppent0Q" } SHC Data: { "iss": "https://smarthealthcard.phsa.ca/v1/issuer", "nbf": 1631039838.0, "vc": { "type": [ "https://smarthealth.cards#covid19", "https://smarthealth.cards#immunization", "https://smarthealth.cards#health-card" ], "credentialSubject": { "fhirVersion": "4.0.1", "fhirBundle": { "resourceType": "Bundle", "type": "collection", "entry": [ { "fullUrl": "resource:0", "resource": { "resourceType": "Patient", "name": [ { "family": "ARMSTRONG", "given": [ "PATRICK" ] } ], "birthDate": "1970-01-01" } }, { "fullUrl": "resource:1", "resource": { "resourceType": "Immunization", "status": "completed", "vaccineCode": { "coding": [ { "system": "http://hl7.org/fhir/sid/cvx", "code": "208" }, { "system": "http://snomed.info/sct", "code": "28581000087106" } ] }, "patient": { "reference": "resource:0" }, "occurrenceDateTime": "2020-01-01", "lotNumber": "XX1234", "performer": [ { "actor": { "display": "Vancouver Convention Centre" } } ] } }, { "fullUrl": "resource:2", "resource": { "resourceType": "Immunization", "status": "completed", "vaccineCode": { "coding": [ { "system": "http://hl7.org/fhir/sid/cvx", "code": "208" }, { "system": "http://snomed.info/sct", "code": "28581000087106" } ] }, "patient": { "reference": "resource:0" }, "occurrenceDateTime": "2020-01-01", "lotNumber": "YY1234", "performer": [ { "actor": { "display": "Vancouver Convention Centre" } } ] } } ] } } } }

The contents of the card are straightforward, and Dr. Vishnu Ravi's post, How do Verifiable Vaccination Records with SMART Health Cards Work? covers the details. I won't repeat them since they're well covered in that post.

In case you're wondering, this says my name, and that I got two shots of the Pfizer BioNTech MRNA vaccine at the Vancouver Convention Centre (I changed the DOB, Lot number, and dates that I got the shots).

[pureimagineering]

The Audio from the Jungle Cruise's Queue

I'm obsessed with it, but even after working there for a year, I wasn't able to catch everything that Albert AWOL says. So here's a complete transcript.

This post will be TL;DR for most. If you're a freak like me, it will be a delightful read. Either way, sorry!

"Here Comes My Ball and Chain," by the Coon-Sanders Nighthawks

This is Skipper Albert AWOL, the Voice of the Jungle, broadcasting on the DBC to all points unknown! If you’re within the sound of my voice, you are listening to AWOL Airwaves on the DBC.

And now, here’s today’s river tip from Skipper Bill of the Congo Connie. Bill says, “If it rains in the jungle, who cares? That’s why they call it a rainforest!” Thanks, Bill.

Any travelers who may need to exchange foreign currency during their voyage needn’t worry. There are banks all along our rivers.

In addition to beautiful Malaysia, Burma, Siam, and Cambodia, Lotus Tours offers two new destinations: Boston and French Lick, Indiana!

...that can’t be right...!

Uh, correction: that’s "Borneo" and "French Indochina." Bookings may be made at any travel office within a thousand miles of this jungle outpost.

Attention, Skippers! If you’re looking for some variety and need to log extra time at the wheel, another group of...uh...“volunteers” is being shanghaied for nighttime excursions down the Congo. These fascinating cruises through total darkness can be both exhilarating and unpredictable!

All Skippers should take note of the following changes along the Jungle Cruise rivers.

First, it is no longer considered sporty to hold small children over the edge of the boat while traveling through the hippo pool. Contrary to popular belief, this does not stop their ears from wiggling! (That’s the hippos of course, not the children.)

Second, due to the fact that a boatload of passengers onboard Zambesi Zelda entered a Cambodian ruin and failed to come out, any and all temple ruins are now off limits to your cruise!

And finally, passengers requesting extended tours should be referred directly to the Booking Office where they will receive immediate medical treatment.

"With Plenty of Money and You," by Dick Powell

All Skippers-in-Training are required to wear a leopard hatband, so travelers at dockside will know not to board your boats.

We know that communicating on the jungle rivers can be difficult at times, so we’re always glad to pass along warm personal greetings from one Skipper to another! Here’s one now from the Skipper of the Senegal Sal to the Skipper of Irrawaddy Irma: "If you can’t drive, stay off the river." Isn’t that nice?

Attention, Skippers: don’t forget to submit your entries for the “Maim the Croc…” Eh, correction, that’s “NAME the Crocodile” contest. The winner will receive a one-week, all-expenses-paid cruise for one on the jungle river of his choice!

"Jeepers, Creepers" by Louis Armstrong

For safety reasons, all passengers are asked not to feed any animals that may approach your vessel before, during, or after the Jungle Cruise, including the ravenous guides working at the Unload Dock. Thank you.

Friday night’s Jungle River Movie--Tarzan and Me--has been canceled due to the fact that those pesky gorillas have once again borrowed our projector. Any Skipper interested in retrieving the projector will receive a free day’s ration of Banana Bits: the dried fruit of choice among all Jungle Cruise Skippers!

Equatorial Expeditions presents: the Route of the Lost Queen! Two- and three-week journeys are available on a "first come, you must go" basis. Interested parties should contact I.L. Befair at the Office of the Interior.

Mating season has begun at the African elephant staging grounds. All boats are cautioned to use extreme care when traveling through this part of the jungle.

Attention, all Skippers! Tomorrow night’s bachelor party for Skipper Carl--originally scheduled for the African elephant staging grounds--will now be held at the Indian elephant pool. Proper swimwear is mandatory.

"Yes, Yes" by Ambrose with Sam Brown and the Carlyle Cousins

Instructions on how to dock a half-sunken boat will be given this Tuesday morning at Loading Dock Number One. Due to reasons that are more than obvious, these maneuvers will not be open to the public.

Skippers, we have yet to receive any entries for our “Name the Crocodile” contest. Besides a one-week, all-expenses-paid cruise for one on the jungle river of your choice, you will also now receive one slightly used pygmy war canoe! Enter today. Please.

Attention, Skippers: please urge your passengers to disembark on the starboard side of the boat. That’s the side closest to the dock...IF you pull in bow-first.

Attention, passengers: please urge your Skippers to pull into the dock bow-first.

Last week, the River Pilot’s License Test was given to thirty Jungle Cruise Skippers. Congratulations to all those who passed! The remaining twenty-nine pilots may take the test again next month.

May I have your attention, please? If anyone has located a large uncut diamond--weighing approximately sixteen carats--will you please return it to the Lost and Found area? (Pfft, right.)

"Song of India" by Paul Whiteman and His Orchestra

Roam the plains of Africa, India, Ceylon, and Persia with experienced expeditioners! See the rare and unusual from the perch of a pachyderm! Join the Elephant Safari Company as they search for lions, tigers, and bears! (Oh, my!)

Due to capacity limitations on the Jungle Cruise boats, parties of thirty-three should consider dividing their group into two groups of sixteen-and-a-half each.

Here’s today’s Jungle Trivia Questions! One, "What is the correct response when confronted by a crazed charging elephant?" and Two, "How many gorillas does it take to destroy a base camp?" Stay tuned!

Attention, all Skippers! Due to an increase in piranha activity along the rivers, you are now required to update the "Missing Persons" board at the end of each cruise.

Attention, all travelers! If your name is added to the "Missing Persons" list at the end of your cruise, please accept in advance our most sincere apologies! Thank you.

"It’s the Girl" by the Boswell Sisters

Jungle Skippers: don’t forget to keep extra oars handy on your ship! That way you won’t find yourself stranded up the river without a paddle!

For safety reasons, individuals are not allowed to take home pets which have been collected while on the Jungle Cruise.

And now today’s survival tip: when confronted by a charging rhino, head for the nearest tree and climb fast! Failure to follow these instructions may result in pointed confrontations.

Congratulations to our dockside crew, who won their first cricket match of the season. We understand it was an overwhelming victory!

(A what? A forfeit?)

And next week--when the opposing team shows up--I am sure they'll do just as well!

"Rhythm King" by the Coon-Sanders Nighthawks

Come drift into an era of kings and golden idols! Discover what you would have never missed if you had never seen it in the first place! It’s another amazing Amazonian river fantasy from the Jungle Navigation Company!

Listen up, Skippers! Your chance to enter the “Name the Crocodile” contest is just about over. Come on, fellas! Not only will you win a one-week, all-expenses-paid cruise for one on the jungle river of your choice, and one slightly used pygmy war canoe, but you’ll also now get--absolutely free--a full volume set of “Teach Yourself Swahili” just for entering!

Remember, “Wasio na hofu” is Swahili for “They who have no fear.” And “Matoi mbuzi katikka nyumba um teea katikka kebanda chakke” means “Take the goat out of the house and put it in its shed.”

All boat captains, please be advised that there have been several reports of aggressive butterflies along the inner banks of the Amazon River. Three guests have reported minor confrontations. To minimize the chance of future injuries, Butterfly Repellent is strongly recommended!

Attention, all passengers! Attention, all passengers! A rather large leopard has recently been seen in the vicinity! The animal can be identified by its razor-sharp teeth, long menacing claws, and a loud ferocious growl. If spotted, please contact the local authorities immediately.

The leopard snarls in the background.

Oh, dear. Uhh, never mind. We seem to have found him!

The leopard roars.

...nice pussycat...!

"Love is Good for Anything That Ails You" by Ida Sue McCune

And now, here are the answers to our Jungle Trivia Questions! The correct response to a crazed charging elephant is, “Auuugh! Auuuuugh!” and it takes an average of eight minutes for a family of gorillas to destroy a typical base camp.

Will the owner of a blue jeep, license number...uh, well, it doesn’t have a license plate. At least, not anymore! Will the owner please contact the office of the Minister of Transportation immediately? Your vehicle has...turned up at a nearby base camp.

This is Skipper Albert AWOL, the Voice of the Jungle, broadcasting on the DBC to all points unknown! If you’re within the sound of my voice, you are listening to AWOL Airwaves on the DBC.

"Harlem River Quiver" by Duke Ellington

The DBC is proud--and financially pleased--to welcome a new sponsor to the AWOL Airwaves! It’s Aero Casablanca! As an introductory offer, all Jungle Cruise personnel will receive discounted fares on Aero Casablanca’s Belgian Congo River tour. All flights must be booked at least two minutes in advance of takeoff and stays in the Congo region must be for a minimum of twenty-five years. Fly the skies of Aero Casablanca: the airline no one comes back on!

All travelers should be aware that herds of elephants have been seen bathing in several regions of the Mekong River. Since these animals have been known to spray water at passing boats, you are advised to wear the appropriate attire. Or bring an umbrella.

Recent reports of giant pythons have been greatly exaggerated! These reptiles cannot digest children weighing over sixty pounds in a single bite! The largest child they can consume at any one time would have to weigh less than forty-five pounds.

Attention! Will the Skipper of the Nile Nellie please move your vessel? You’re docked in a No-Floating Zone.

The previously announced "Name the Crocodile" contest has been suspended due to an acute shortage of entries. If anyone has any ideas about naming our pet croc, please drop them off at the Office Depot! Not to worry; you won’t have to accept any of the prizes.

Now available: one full volume set of “Teach Yourself Swahili!” Yours, just for the asking, at the Office Depot!

"What a Girl, What a Night" by the Coon-Sanders Nighthawks

Due to local monsoons, the demonstration on how to waterproof your vessel has been rained out.

Here’s a message from Sir Henry Morton Stanley to...I...I can’t quite make out this name. It’s “Dr. Livingston,” I presume? Please meet Sir Stanley at the falls.

This week’s Special Guest Skipper is Admiral Bartholomew Wrongway! Admiral Wrongway will be piloting several excursions into the deepest, most dangerous regions of the Congo! Since the Admiral is new to the area--and as such, quite unfamiliar with our waterways--it is recommended that you steer clear of his vessel.

In keeping with jungle tradition, all guests now waiting in line to board Jungle Cruise boats are urged to raise their hands high above their heads and imitate the sounds of their favorite jungle animals!

Will Colonel Williamso--

AWOL coughs.

Excuse me. Uh-hem. I seem to have something in my throat!

AWOL clears his throat until it culminates in a Tarzan yell.

Much better! Will Colonel Williamson please report to the Minister General’s office? Thank you.

"Diga Diga Doo" by Duke Ellington

Rivers of the Pharaohs: excursions to the land that time forgot...and so will you. Sign up today for the adventure of someone else’s lifetime.

We’d like to thank the headmaster at the Library of Lost American Melodies in Minous for supplying us with this fine assortment of music for our dockside entertainment.

The Docking Zone is for loading and unloading only.

The Loading Zone is for docking purposes only.

The Unloading Zone is for purposes unlike those of the Loading and Docking Zones.

Any passengers with experience in piloting a riverboat should give their name to the Skipper upon boarding. (Just in case.)

In the world of science, recent research has uncovered the fact that certain species of crocodiles are repelled by brightly colored clothing!

As a reminder: passengers traveling on the Nile should consider wearing brightly colored clothing during their cruise.

"Anything Goes Selections" by the Paul Whiteman Orchestra, Ramona Healy, and Hauser Laurence

Fishing from the sides of the Jungle Cruise boats is strictly prohibited. (Unless of course you happen to be fishing a relative out of the crocodile-infested waters of the Nile River.)

If your vessel needs repairs, please see our mechanic, located at the Boat Storage area. It is not proper to remove parts from other Skippers’ boats. Your cooperation will be greatly appreciated.

Doctor Hugo Squirtum’s popular pachyderm lecture series will continue on Saturday night at the Jungle Trading Post. This week's lecture, “Elephant Trunks: Part Drinking Straw, Part Water Pistol,” will focus on the many ways elephants use their flexible appendage for nourishment, skin care, and friendly contact!

"Let's Misbehave" by Irving Aaronson and His Commanders

Those individuals waiting in line for the Annual Platypus Sightseeing Expedition should check in with the Booking Office immediately! Someone made a rather nasty mistake on your vacation destination. Sorry!

Attention, children: please be advised that there are reports of wild adults roaming the area! Thank you.

Skippers: only animals--not guests--are permitted to graze while in the rainforest.

Will the Jungle Cruise Skipper in khaki fatigues please report to the boat storage area? I’m sorry, let me clarify that: the Jungle Cruise Skipper in khaki fatigues working on the dock wearing the neat-looking hat and black walking shoes, answering to “Hey, You!” please report to the boat storage area.

"Painting the Clouds with Sunshine" by the Jack Hylton Orchestra

Here’s a helpful hint for all would-be jungle explorers! When observing wildlife in this region, it is important to blend in with the natural surroundings. That means remaining still while trying to look as green as possible.

If anyone sees the Skipper of the Orinoco Ida, please tell him that his last group of passengers has just returned to the dock with his boat.

Will the individual who left a box of small furry things by the Purser’s Office please come to reclaim them? They seem to be quite hungry.

The winning entrée from this month’s cooking competition is bamboo stew with shredded vine stems. Skipper Doug--our floating gourmet--recently tried this unusual dish and told us, “It tastes like chicken!” He was quick to add however, “So does everything else we cook around here.” Thanks, Doug.

"The Mooche" by Duke Ellington

Attention, navigators! Revised maps of the jungle areas have been completed, and should arrive the day after tomorrow, if the courier can find his way here.

Will world famous paleontologist, Dr. Cornelius Bifocal, please return the dinosaur coloring book--and crayons--he borrowed from the Dispatch Office?

Due to a recent outpouring of rain in our area, the Nile River is extremely wet today. Please drive slowly!

Guests arriving at dockside for the Jungle Cruise must check their baggage with the dockmaster. This includes all wild animals and children under the age of five.

Passengers returning from the jungle are advised to hold their baggage claim tickets until all belongs have been secured. Guests not returning needn’t worry about it.

Attention, all Skippers: several well-known photojournalists will be boarding our boats today for photographic studies of the region. However, in order to minimize any disruption of our tours, they will be disguised as local tourists. If you should happen to spot one, please do not ask for autographs.

"The King's Horses and the King's Men" by the Jack Hylton Orchestra

Individuals taking excursions into the Congo should provide their own drinking water and rations, since snacks will not be served.

Since our weekly shipment of tea has been delayed, papaya juice will now be served at the four o'clock hour. As always, day-old crumpets will still be available!

All crew members should secure a spot in the bunkhouse as soon as possible! And remember, if you walk in your sleep, don’t forget to don your bathing cap before retiring this evening.

For sale: late model war canoe. Hand-carved wood interior, dual paddles, and naturally air-conditioned! Interested parties should respond through the grapevine.