#science&technology

[reasonsforhope]

Here's the top 2 stories from each of Fix The News's six categories:

1. A game-changing HIV drug was the biggest story of 2024

In what Science called the 'breakthrough of the year', researchers revealed in June that a twice-yearly drug called lenacapavir reduced HIV infections in a trial in Africa to zero—an astonishing 100% efficacy, and the closest thing to a vaccine in four decades of research. Things moved quick; by October, the maker of the drug, Gilead, had agreed to produce an affordable version for 120 resource-limited countries, and by December trials were underway for a version that could prevent infection with just a single shot per year. 'I got cold shivers. After all our years of sadness, particularly over vaccines, this truly is surreal.'

2. Another incredible year for disease elimination

Jordan became the first country to eliminate leprosy, Chad eliminated sleeping sickness, Guinea eliminated maternal and neonatal tetanus, Belize, Jamaica, and Saint Vincent & the Grenadines eliminated mother-to-child transmission of HIV and syphilis, India achieved the WHO target for eliminating black fever, India, Viet Nam and Pakistan eliminated trachoma, the world’s leading infectious cause of blindness, and Brazil and Timor Leste eliminated elephantiasis.

15. The EU passed a landmark nature restoration law

When countries pass environmental legislation, it’s big news; when an entire continent mandates the protection of nature, it signals a profound shift. Under the new law, which passed on a knife-edge vote in June 2024, all 27 member states are legally required to restore at least 20% of land and sea by 2030, and degraded ecosystems by 2050. This is one of the world’s most ambitious pieces of legislation and it didn’t come easy; but the payoff will be huge - from tackling biodiversity loss and climate change to enhancing food security.

16. Deforestation in the Amazon halved in two years

Brazil’s space agency, INPE, confirmed a second consecutive year of declining deforestation in the Brazilian Amazon. That means deforestation rates have roughly halved under Lula, and are now approaching all time lows. In Colombia, deforestation dropped by 36%, hitting a 23-year low. Bolivia created four new protected areas, a huge new new state park was created in Pará to protect some of the oldest and tallest tree species in the tropical Americas and a new study revealed that more of the Amazon is protected than we originally thought, with 62.4% of the rainforest now under some form of conservation management.

39. Millions more children got an education

Staggering statistics incoming: between 2000 and 2023, the number of children and adolescents not attending school fell by nearly 40%, and Eastern and Southern Africa, achieved gender parity in primary education, with 25 million more girls are enrolled in primary school today than in the early 2000s. Since 2015, an additional 110 million children have entered school worldwide, and 40 million more young people are completing secondary school.

40. We fed around a quarter of the world's kids at school

Around 480 million students are now getting fed at school, up from 319 million before the pandemic, and 104 countries have joined a global coalition to promote school meals, School feeding policies are now in place in 48 countries in Africa, and this year Nigeria announced plans to expand school meals to 20 million children by 2025, Kenya committed to expanding its program from two million to ten million children by the end of the decade, and Indonesia pledged to provide lunches to all 78 million of its students, in what will be the world's largest free school meals program.

50. Solar installations shattered all records

Global solar installations look set to reach an unprecedented 660GW in 2024, up 50% from 2023's previous record. The pace of deployment has become almost unfathomable - in 2010, it took a month to install a gigawatt, by 2016, a week, and in 2024, just 12 hours. Solar has become not just the cheapest form of new electricity in history, but the fastest-growing energy technology ever deployed, and the International Energy Agency said that the pace of deployment is now ahead of the trajectory required for net zero by 2050.  

51. Battery storage transformed the economics of renewables

Global battery storage capacity surged 76% in 2024, making investments in solar and wind energy much more attractive, and vice-versa. As with solar, the pace of change stunned even the most cynical observers. Price wars between the big Chinese manufacturers pushed battery costs to record lows, and global battery manufacturing capacity increased by 42%, setting the stage for future growth in both grid storage and electric vehicles - crucial for the clean flexibility required by a renewables-dominated electricity system. The world's first large-scale grid battery installation only went online seven years ago; by next year, global battery storage capacity will exceed that of pumped hydro.

65. Democracy proved remarkably resilient in a record year of elections

More than two billion people went to the polls this year, and democracy fared far better than most people expected, with solid voter turnout, limited election manipulation, and evidence of incumbent governments being tamed. It wasn't all good news, but Indonesia saw the world's biggest one day election, Indian voters rejected authoritarianism, South Korea's democratic institutions did the same, Bangladesh promised free and fair elections following a 'people's victory', Senegal, Sri Lanka and Botswana saw peaceful transfers of power to new leaders after decades of single party rule, and Syria saw the end of one of the world's most horrific authoritarian regimes.

66. Global leaders committed to ending violence against children

In early November, while the eyes of the world were on the US election, an event took place that may prove to be a far more consequential for humanity. Five countries pledged to end corporal punishment in all settings, two more pledged to end it in schools, and another 12, including Bangladesh and Nigeria, accepted recommendations earlier in the year to end corporal punishment of children in all settings. In total, in 2024 more than 100 countries made some kind of commitment to ending violence against children. Together, these countries are home to hundreds of millions of children, with the WHO calling the move a 'fundamental shift.'

73. Space exploration hit new milestones

NASA’s Europa Clipper began a 2.9 billion kilometre voyage to Jupiter to investigate a moon that may have conditions for life; astronomers identified an ice world with a possible atmosphere in the habitable zone; and the James Webb Telescope found the farthest known galaxy. Closer to Earth, China landed on the far side of the moon, the Polaris Dawn crew made a historic trip to orbit, and Starship moved closer to operational use – and maybe one day, to travel to Mars. 

74. Next-generation materials advanced

A mind-boggling year for material science. Artificial intelligence helped identify a solid-state electrolyte that could slash lithium use in batteries by 70%, and an Apple supplier announced a battery material that can deliver around 100 times better energy density. Researchers created an insulating synthetic sapphire material 1.25 nanometers thick, plus the world’s thinnest lens, just three atoms across. The world’s first functioning graphene-based semiconductor was unveiled (the long-awaited ‘wonder material’ may finally be coming of age!) and a team at Berkeley invented a fluffy yellow powder that could be a game changer for removing carbon from the atmosphere.

-via Fix The News, December 19, 2024

[prokopetz]

To be fair, a lot of goofy-sounding rocketry/aerospace terminology has a legitimate nomenclatural role beyond just being silly euphemisms.

"Unplanned rapid disassembly", for example, exists as the necessary counterpart to planned rapid disassembly: sometimes a rocket is legitimately supposed to fall apart or blow up, so you need a specific term to emphasise that it wasn't supposed to do that.

Similarly, "lithobraking" was coined by analogy with aerobraking (shedding velocity via atmospheric friction) and hydrobraking (shedding velocity by landing in water), and it does have some intentional applications; the Mars Pathfinder probe, for example, was deliberately crashed into the Martian surface while surrounded by giant airbags, and reportedly bounced at least 15 times before coming to rest.

(That said, aerospace engineers absolutely do use these terms humorously as well, because engineers are just Like That.)

[noosphe-re]

"There was an exchange on Twitter a while back where someone said, ‘What is artificial intelligence?' And someone else said, 'A poor choice of words in 1954'," he says. "And, you know, they’re right. I think that if we had chosen a different phrase for it, back in the '50s, we might have avoided a lot of the confusion that we're having now." So if he had to invent a term, what would it be? His answer is instant: applied statistics. "It's genuinely amazing that...these sorts of things can be extracted from a statistical analysis of a large body of text," he says. But, in his view, that doesn't make the tools intelligent. Applied statistics is a far more precise descriptor, "but no one wants to use that term, because it's not as sexy".

'The machines we have now are not conscious', Lunch with the FT, Ted Chiang, by Madhumita Murgia, 3 June/4 June 2023

[nasa]

What We Learned from Flying a Helicopter on Mars

The Ingenuity Mars Helicopter made history – not only as the first aircraft to perform powered, controlled flight on another world – but also for exceeding expectations, pushing the limits, and setting the stage for future NASA aerial exploration of other worlds.

Built as a technology demonstration designed to perform up to five experimental test flights over 30 days, Ingenuity performed flight operations from the Martian surface for almost three years. The helicopter ended its mission on Jan. 25, 2024, after sustaining damage to its rotor blades during its 72nd flight.

So, what did we learn from this small but mighty helicopter?

We can fly rotorcraft in the thin atmosphere of other planets.

Ingenuity proved that powered, controlled flight is possible on other worlds when it took to the Martian skies for the first time on April 19, 2021.

Flying on planets like Mars is no easy feat: The Red Planet has a significantly lower gravity – one-third that of Earth’s – and an extremely thin atmosphere, with only 1% the pressure at the surface compared to our planet. This means there are relatively few air molecules with which Ingenuity’s two 4-foot-wide (1.2-meter-wide) rotor blades can interact to achieve flight.

Ingenuity performed several flights dedicated to understanding key aerodynamic effects and how they interact with the structure and control system of the helicopter, providing us with a treasure-trove of data on how aircraft fly in the Martian atmosphere.

Now, we can use this knowledge to directly improve performance and reduce risk on future planetary aerial vehicles.

Creative solutions and “ingenuity” kept the helicopter flying longer than expected.

Over an extended mission that lasted for almost 1,000 Martian days (more than 33 times longer than originally planned), Ingenuity was upgraded with the ability to autonomously choose landing sites in treacherous terrain, dealt with a dead sensor, dusted itself off after dust storms, operated from 48 different airfields, performed three emergency landings, and survived a frigid Martian winter.

Fun fact: To keep costs low, the helicopter contained many off-the-shelf-commercial parts from the smartphone industry - parts that had never been tested in deep space. Those parts also surpassed expectations, proving durable throughout Ingenuity’s extended mission, and can inform future budget-conscious hardware solutions.

There is value in adding an aerial dimension to interplanetary surface missions.

Ingenuity traveled to Mars on the belly of the Perseverance rover, which served as the communications relay for Ingenuity and, therefore, was its constant companion. The helicopter also proved itself a helpful scout to the rover.

After its initial five flights in 2021, Ingenuity transitioned to an “operations demonstration,” serving as Perseverance’s eyes in the sky as it scouted science targets, potential rover routes, and inaccessible features, while also capturing stereo images for digital elevation maps.

Airborne assets like Ingenuity unlock a new dimension of exploration on Mars that we did not yet have – providing more pixels per meter of resolution for imaging than an orbiter and exploring locations a rover cannot reach.

Tech demos can pay off big time.

Ingenuity was flown as a technology demonstration payload on the Mars 2020 mission, and was a high risk, high reward, low-cost endeavor that paid off big. The data collected by the helicopter will be analyzed for years to come and will benefit future Mars and other planetary missions.

Just as the Sojourner rover led to the MER-class (Spirit and Opportunity) rovers, and the MSL-class (Curiosity and Perseverance) rovers, the team believes Ingenuity’s success will lead to future fleets of aircraft at Mars.

In general, NASA’s Technology Demonstration Missions test and advance new technologies, and then transition those capabilities to NASA missions, industry, and other government agencies. Chosen technologies are thoroughly ground- and flight-tested in relevant operating environments — reducing risks to future flight missions, gaining operational heritage and continuing NASA’s long history as a technological leader.

You can fall in love with robots on another planet.

Following in the tracks of beloved Martian rovers, the Ingenuity Mars Helicopter built up a worldwide fanbase. The Ingenuity team and public awaited every single flight with anticipation, awe, humor, and hope.

Check out #ThanksIngenuity on social media to see what’s been said about the helicopter’s accomplishments.

Learn more about Ingenuity’s accomplishments here. And make sure to follow us on Tumblr for your regular dose of space!

[explore-blog]

In the autumn of 1883, a paper in the nation's capital reported that "an Iowa woman has spent 7 years embroidering the solar system on a quilt" — to teach astronomy in an era when women could not attend college. Her story.

[389]

[studymaterialshop]

Vision IAS Prelims CSAT Test Series 2023 Questions with Solutions (1-12) English Vision IAS Prelims CSAT Test Series-2023 (1-12) (Questions with Solution)

Read more: studymaterialshop.com

[myjetpack]

A recent cartoon for New Scientist

[theofficialastronomy101]

Here's a rare mind blowing moment in the astronomy world. Clearest images ever taken of Equatorial Ridge on Saturn's moon 'Iapetus'.

[trendingnowlive]

New Study Finds Precursory Phase of Fault Slip That Could Lead to Earthquake Prediction

[reasonsforhope]

"A team of researchers at Washington University in St. Louis has developed a real-time air monitor that can detect any of the SARS-CoV-2 virus variants that are present in a room in about 5 minutes.

The proof-of-concept device was created by researchers from the McKelvey School of Engineering and the School of Medicine at Washington University...

The results are contained in a July 10 publication in Nature Communications that provides details about how the technology works.

The device holds promise as a breakthrough that - when commercially available - could be used in hospitals and health care facilities, schools, congregate living quarters, and other public places to help detect not only the SARS-CoV-2 virus, but other respiratory virus aerosol such as influenza and respiratory syncytial virus (RSV) as well.

“There is nothing at the moment that tells us how safe a room is,” Cirrito said, in the university’s news release. “If you are in a room with 100 people, you don’t want to find out five days later whether you could be sick or not. The idea with this device is that you can know essentially in real time, or every 5 minutes, if there is a live virus in the air.”

How It Works

The team combined expertise in biosensing with knowhow in designing instruments that measure the toxicity of air. The resulting device is an air sampler that operates based on what’s called “wet cyclone technology.” Air is sucked into the sampler at very high speeds and is then mixed centrifugally with a fluid containing a nanobody that recognizes the spike protein from the SARS-CoV-2 virus. That fluid, which lines the walls of the sampler, creates a surface vortex that traps the virus aerosols. The wet cyclone sampler has a pump that collects the fluid and sends it to the biosensor for detection of the virus using electrochemistry.

The success of the instrument is linked to the extremely high velocity it generates - the monitor has a flow rate of about 1,000 liters per minute - allowing it to sample a much larger volume of air over a 5-minute collection period than what is possible with currently available commercial samplers. It’s also compact - about one foot wide and 10 inches tall - and lights up when a virus is detected, alerting users to increase airflow or circulation in the room.

Testing the Monitor

To test the monitor, the team placed it in the apartments of two Covid-positive patients. The real-time air samples from the bedrooms were then compared with air samples collected from a virus-free control room. The device detected the RNA of the virus in the air samples from the bedrooms but did not detect any in the control air samples.

In laboratory experiments that aerosolized SARS-CoV-2 into a room-sized chamber, the wet cyclone and biosensor were able to detect varying levels of airborne virus concentrations after only a few minutes of sampling, according to the study.

“We are starting with SARS-CoV-2, but there are plans to also measure influenza, RSV, rhinovirus and other top pathogens that routinely infect people,” Cirrito said. “In a hospital setting, the monitor could be used to measure for staph or strep, which cause all kinds of complications for patients. This could really have a major impact on people’s health.”

The Washington University team is now working to commercialize the air quality monitor."

-via Forbes, July 11, 2023

-

Holy shit. I know it's still early in the technology and more testing will inevitably be needed but holy shit.

Literally, if it bears out, this could revolutionize medicine. And maybe let immunocompromised people fucking go places again

Also, for those who don't know, Nature Communications is a very prestigious scientific journal that focuses on Pretty Big Deal research. Their review process is incredibly rigorous. This is an absolutely HUGE credibility boost to this research and prototype

[usnatarchives]

Today we celebrate the birthday of computing pioneer Rear Admiral Grace Hopper, who revolutionized programming with her work on COBOL and the first compiler. She coined the term "computer bug," after finding an actual moth in a machine! 🪲🖥️

[cheekios]

Eviction in the most comical way.

For the past two weeks eye have been trying to crowdfund for a new pair of strong prescription glasses. Because mine are broken.

CA: $HushEmu

PP: emuslayter@gmail.com

Goal: $1275

In that interval I was fired due to “job abandonment” for calling off of work, because I cannot legally drive nor can I see. Now I am facing possible eviction with a very aggressive and hostile landlord.

Proof

THEY tried to evict me despite paying. Just because it didn’t “reflect” on their system on time.

Proof of my broken glasses

I’m still trying to raise $275 for my prescription glasses while trying to raise rent because I am now unemployed.

I am asking to stay housed! :/

If you can’t help financially please advocate for me.

• c+p on my behalf on various platforms

• If you mutuals with large following ask if they can share.

pls help. I’m just a girl.

[nasa]

Launch Your Creativity with Space Crafts!

In honor of the completion of our Nancy Grace Roman Space Telescope’s spacecraft — the vehicle that will maneuver the observatory to its place in space and enable it to function once there — we’re bringing you a space craft you can complete at home! Join us for a journey across the cosmos, starting right in your own pantry.

Stardust Slime

Ingredients:

1 5 oz. bottle clear glue

½ tablespoon baking soda

Food coloring

1 tablespoon contact lens solution

1 tablespoon glitter

Directions:

Pour the glue into a bowl.

Mix in the baking soda.

Add food coloring (we recommend blue, purple, black, or a combination).

Add contact lens solution and use your hands to work it through the slime. It will initially be very sticky! You can add a little extra contact lens solution to make it firmer and less goopy.

Add glitter a teaspoon at a time, using as much or as little as you like!

Did you know that most of your household ingredients are made of stardust? And so are you! Nearly every naturally occurring element was forged by living or dying stars.

Take the baking soda in this slime recipe, for example. It’s made up of sodium, hydrogen, carbon, and oxygen. The hydrogen was made during the big bang, right at the start of the universe. But the other three elements were created by dying stars. So when you show your friends your space-y slime, you can tell them it’s literally made of stardust!

Still feeling crafty? Try your hand at more pantry projects or these 3D and paper spacecraft models. If you’re eager for a more advanced space craft, check out these embroidery creations for inspiration! Or if you’re ready for a break, take a virtual tour of an interactive version of the Roman Space Telescope here.

Make sure to follow us on Tumblr for your regular dose of space!

[markscherz]

🐸🚨New Frog Just Dropped!🚨🐸

Meet the ✨Most Beautiful Tree Frog✨, Guibemantis pulcherrimus, a new species described by my colleagues and me in the journal Zootaxa this week. The scientific name 'pulcherrimus' literally means 'most beautiful'. It's a close relative of Guibemantis pulcher (just 'beautiful', ha!), but has more little spots and less pronounced lateral blotches. It's found in the northeast of Madagascar, where it lives in Pandanus screw-palms.