#nanotips

[kreuzaderny]

Attosecond field emission

Field emission of electrons underlies great advances in science and technology, ranging from signal processing at ever higher frequencies1 to imaging of the atomic-scale structure of matter2 with picometre resolution. The advancing of electron microscopy techniques to enable the complete visualization of matter on the native spatial (picometre) and temporal (attosecond) scales of electron dynamics calls for techniques that can confine and examine the field emission on sub-femtosecond time intervals. Intense laser pulses have paved the way to this end3,4 by demonstrating femtosecond confinement5,6 and sub-optical cycle control7,8 of the optical field emission9 from nanostructured metals. Yet the measurement of attosecond electron pulses has remained elusive. We used intense, sub-cycle light transients to induce optical field emission of electron pulses from tungsten nanotips and a weak replica of the same transient to directly investigate the emission dynamics in real time. Access to the temporal properties of the electron pulses rescattering off the tip surface, including the duration τ = (53 as ± 5 as) and chirp, and the direct exploration of nanoscale near fields open new prospects for research and applications at the interface of attosecond physics and nano-optics.

[blegmarveden]

NANOWRIMO TIP!!!

I have just written 2044 words, first day done, yay!!!

Something that REALLY helped me though was the fact that in half an hour, I was able to complete about 500 words if I really sat down and tried.

MEANING that I was able to say to myself "Well, let me just put in one more half hour–that will get me a fourth closer to my goal!" And while it was tiring, and DEFINITELY difficult, I managed to succeed!!!

What also helped me SIGNIFICANTLY was the idea that this is a first draft, and is therefore SUPPOSED to suck!!!! And it's for Nanowrimo, which means itll be rushed by DEFAULT. This allowed me to power through, and be more flexible with how I got information down on the page.

These aren't 100% proven, just my own experience. Good luck writers, and may the words be forever in your favor!!!🍀🍀🍀

[bebesthair]

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[lexacourtney]

NaNoWriMo 2020 – Here We Go Again!

NaNoWriMo 2020 – Here We Go Again! This year it's Vamps and Reincarnation! #newpost #blogpost #bookpost #bookblog #books #blog #blogger #bloggerswanted #bloggerstribe #bloggingcommunity #bookish #NaNoWriMo #writing

NaNo might kill me this year.

Well, NaNo on top of work, and Codigo and blogging…it might kill me this year. But I can’t bring myself not to do it. I always enjoy it and look forward to it each year.

So, I’m going to try. I’m not going to take it too seriously.

Though, knowing me, I’ll force myself to finish it, to get to the 50k mark. I’m too stubborn not to.

(more…)

[alextriestowritestuff]

Nanowrimo Pep Talk

We’re well past the half point of Nanowrimo and I know this is crunch time. You’re probably sick of your manuscript and think you should just give up on writing and become a monk. But don’t do that just yet, not until you’ve read this tips that should help you keep going. A sidenote: for those who have decided to not continue with Nano, don’t feel like you failed. You wrote more words than you had before November. You wrote something and that’s a whole lot better than nothing. Be gentle with yourself :) Onto the tips!

1. Switch to a new project. I’m pretty sure this will earn you the title of ‘Nanorebel’. But I did this last year and I can confidently tell you that it is the only reason why I won. I had 35, 000 words of The Island and those last 5,000 words were rough. I had too many conflicting thoughts about the characters and the voice so I just dropped it and picked up a fanfiction I hadn’t updated in awhile. I can’t tell you how happy I was to be writing that fanfiction, like I was at a point where I’d rather an academic essay than my nano novel. I ended up writing 20,000 words of that fanfic and combined with The Island’s wordcount, I won. If you really want to focus on writing your nano project but are kind of tired of it, then work on something else temporarily. Maybe you need to re write a scene for another WIP. Do that even if it’s only 500 words then head back to your nano novel. Switching projects temporarily may give you a break but you’re still doing something to bump up your word count.

2. Use cheats. You didn’t hear it from me, but sometimes you have to cheat. No, I don’t mean plagiarize someone’s and copy and paste their paragraphs onto your manuscript to bump up the word count. I’m talking about short cuts. A lot of writer’s use contractions in their writing. Now, don’t use the full word like cannot as opposed to can’t because those are both still one word. Instead, use the contraction like this ‘can ‘ t’ Put a space between the apostrophe and it’s technically two words. Then, when you go back and edit, Ctrl/Command Find all the apostrophes and put them back together. Seems like a lot of work but hey, at least you’re writing!

My last cheat is more for when you update your wordcount on nanowrimo’s website. I know sometimes I just needed an hour to finish the daily wordcount but it was already 11:55 and nano would mark it below the word count. So what I’d do is go in the settings (Or wherever the website asked for what time zone you were in) and I’d change it to another time zone where it’d be 2 pm or something. I’d finish up my wordcount at my leisure and presto, I wasn’t behind on my wordcount. 

3. Take a break. Seriously, take a day-long break and don’t write anything. Just relax so you can come back to the manuscript with an open mind. Try to get a head the daily word count goal so that way you don’t have to worry about making up the word count for that break day. If not, then spread the word count over the next few days. Hang out with some animals, do a mask, and try not to think about nano for a day. 

4. Talk to yourself. Sounds a little wild, but if you’re having problems with your manuscript. Whether it be the pacing, the character’s aren’t acting like you want them to, etc. Whenever I have the house to myself, I talk about my characters like I’m explaining their personality to someone. And sometimes, I find out stuff I didn’t know about them which later goes into my manuscript. Talk about what you need to figure out. Post it on Tumblr privately if you want. Reach out to someone. Don’t keep it in your head. 

5. If all else fails, remember the prizes. Nano offers some sweet prizes for winners and participants. I was in it for the scrivner code which is funny because I haven’t used it and it’s probably expired. So keep your eye on the prize and maybe that novel will write itself!

No matter what happens, be proud of yourself for taking on this challenge. It’s not easy but will learn so much as a writer. One of the main things I got out of it is making writing a habit. I don’t write everyday but when I set a schedule, I stick to it. Nano taught me how to write even when I wasn’t inspired and that’s a good skill to have if you looking at publication. You have time to revise but that’s in December and onward. Right now, it’s time to write. So if you want, reblog this with the last sentence you’ve written for your WIP-whether you’re participating in Nano or not. Then get back to suffering--I mean, writing. You’ve got this!

First Nanowrimo Tip post here. Follow my blog for after-nano tips and pep talks!

[photojojo]

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[blogmaitran]

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[materialsscienceandengineering]

High-resolution, terahertz-driven atom probe tomography

Materials scientists must be able to exert ultrafast control of matter using a strong electromagnetic field on the atomic scale to understand the ionization dynamics and excitations in solids. Researchers can couple picosecond duration terahertz pulses to metallic nanostructures to generate extremely localized and intense electric fields. In a new report now on Science Advances, Angela Vella and a research team at the CNRS and the University Institute of France controlled field ion emission across from metallic nanotips. The terahertz near-field induced an athermal ultrafast evaporation of surface atoms as ions on the subpicosecond timescale with the tip acting as a field amplifier. The ultrafast terahertz-ion interaction offered unprecedented control on ultrafast free-ion pulses to image, analyze and manipulate matter at atomic scales. In this work, Vella et al. demonstrated terahertz atom probe microscopy as a new platform for microscopy with atomic and chemical resolution.

The basics of atom probe tomography

The ability to couple electromagnetic fields to solid-state nanostructures to control the basic properties of matter at the nanoscale is increasingly attracting interest for a variety of applications including chemistry, catalysis, gas-sensing and ultrafast electron microscopy and imaging. The basic principle of atom probe tomography (APT) involves the field emission of positive ions from a sharp tip as an imaging technique based on controlled field evaporation of atoms from a nanometric needle-shaped sample under a strong electric field. The technique was attractive due to its capability to provide sub-nanometer spatial resolution in the three dimensions of space, with high chemical sensitivity across whole periodic elements and their isotopes.

Read more.

[silviamirse-blog]

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[platinumlockz-blog]

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[lexacourtney]

It’s That Time of The Year Again – NaNoWriMo

It’s That Time of The Year Again – #NaNoWriMo #newpost #blogpost #bookpost #bookblog #books #blog #blogger #bloggerswanted #bloggerstribe #bloggingcommunity #bookish #writer #writingcommunity

I can’t believe it’s the end of October. Didn’t it just start? Here we are, October 30th, Halloween is tomorrow, and November starts Friday.

That’s the real spooky thing about October – that it passes so quickly and suddenly it’s time to write 50,000 words in 30 days.

This post is going to basically be a quick rundown of how I handle the stress and fun that is National Novel Writing Month…

[sciencesideresponse]

Science side of Tumblr, what's the sharpest something can be before the edge is too thin to use?

One atom thick! The sharpest object ever made was a needle, made out of tungsten, which has a tip only one atom wide. It’s made by placing a tungsten wire in an atmosphere of pure nitrogen. The nitrogen reacts with the tungsten causing it to become thinner.

These ‘nanotips’ are used in a type of microscopy called scanning tunnel microscopy, which is used to look in high resolution at the surface of objects.

[obexa-surgicals]

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Wire Pulling Hair Extension Loop Tool for Nano Micro Ring beads

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[birdy730]

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[blogmaitran]

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