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Apr 24, 2021

Hoverboard Test! (Part 2/2)

Posted by in categories: energy, engineering, media & arts, transportation

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Apr 24, 2021

Physics of DNA –“In Each of Us Lies a Message, Its Beginnings Lost in the Mists of Time”

Posted by in categories: biotech/medical, food

Physics of DNA —“In Each of Us Lies a Message, Its Beginnings Lost in the Mists of Time” | The Daily Galaxy.


“At one time,” writes science-fiction author Dennis E. Taylor in We Are Legion (We Are Bob), “we thought that the way life came together was almost completely random, only needing an energy gradient to get going. But as we’ve moved into the information age, we’ve come to realize that life is more about information than energy. Fire has most of the characteristics of life. It eats, it grows, it reproduces. But fire retains no information. It doesn’t learn; it doesn’t adapt. The five millionth fire started by lightning will behave just like the first. But the five hundredth bacterial division will not be like the first one, especially if there is environmental pressure. That’s DNA. And RNA. That’s life.”

Continue reading “Physics of DNA --‘In Each of Us Lies a Message, Its Beginnings Lost in the Mists of Time’” »

Apr 24, 2021

A strategy to rejuvenate dead lithium inside batteries

Posted by in categories: chemistry, computing, mobile phones

Li-ion batteries and other emerging lithium-based battery technologies are currently used to power a wide range of devices, including smartphones, laptops, tablets and cameras. Despite their advantages, batteries containing lithium do not always retain their performance over time.

One of the main reasons for the performance decay observed in some Li-based batteries is that the lithium contained within them sometimes becomes inactive or “dead.” This “dead lithium” can cause capacity decay and thermal runaway, which can ultimately reduce a battery’s lifespan and impair its performance.

Researchers at Zhejiang University of Technology in China and Argonne National Laboratory in the U.S. have recently devised a strategy to restore inactive lithium in Li anodes. This strategy, outlined in a paper published in Nature Energy, is based on a chemical reaction known as iodine redox.

Apr 24, 2021

Death, life, and meaning walk into a bar… — YouTube

Posted by in categories: biotech/medical, life extension, media & arts

With some unfortunate scifi examples.


What is it that gives meaning to your life? Is death necessary to give life meaning? Nicola is not quite convinced of that, and in this episode, he’ll tell you why along with why he’d like a longer life in good health instead.

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Apr 24, 2021

New device can detect airborne virus particles that cause COVID-19, says maker

Posted by in category: biotech/medical

Physics World


System works in minutes and is claimed to be as sensitive as PCR tests.

Apr 24, 2021

New space radar in Costa Rica can track even tiny orbital debris

Posted by in categories: futurism, satellites

It can track objects the size of a golf ball traveling at up 30000 kilometers per hour in LEO.


There’s a new giant space radar in Costa Rica that can track orbital debris as small as two centimeters. It was built by LeoLabs, a company that provides commercial radar tracking services for objects in Low Earth Orbit, which has declared the site fully operational less than a year after breaking ground. LeoLabs CEO Dan Ceperley said it’s the “most advanced commercial space radar of its kind” — one that’s capable of tracking objects the size of a golf ball traveling at up 30000 kilometers per hour.

The radar can keep an eye on both active satellites and space junk, which make up the vast majority of man-made objects found in LEO. They’re also the risks LeoLabs’ customers — made up of satellite operators, defense, space and regulatory agencies, insurance and scientific institutions — want to keep tabs on.

Continue reading “New space radar in Costa Rica can track even tiny orbital debris” »

Apr 24, 2021

Eliminating dangerous bacteria with nanoparticles

Posted by in categories: biotech/medical, cyborgs, military, nanotechnology

Multi-resistant pathogens are a serious and increasing problem in today’s medicine. Where antibiotics are ineffective, these bacteria can cause life-threatening infections. Researchers at Empa and ETH Zurich are currently developing nanoparticles that can be used to detect and kill multi-resistant pathogens that hide inside our body cells. The team published the study in the current issue of the journal Nanoscale (“Inorganic nanohybrids combat antibiotic-resistant bacteria hiding within human macrophages”).

Antibiotic-resistant bacteria are being swallowed by a human white blood cell. Colorized, scanning electron microscopic (SEM) image. (Image: CDC/NIAID)

In the arms race “mankind against bacteria”, bacteria are currently ahead of us. Our former miracle weapons, antibiotics, are failing more and more frequently when germs use tricky maneuvers to protect themselves from the effects of these drugs. Some species even retreat into the inside of human cells, where they remain “invisible” to the immune system. These particularly dreaded pathogens include multi-resistant staphylococci (MRSA), which can cause life-threatening diseases such as sepsis or pneumonia.

Apr 24, 2021

AI Helps Prove Two Scribes Wrote Text of a Dead Sea Scroll

Posted by in category: robotics/AI

New AI-based handwriting analysis of the Great Isiah Scroll reveals the work of 2 scribes—one mirroring the other. Via Ars Technica.


Most scholars thought the Isaiah Scroll was copied by a single author. New handwriting analysis just revealed otherwise.

Apr 24, 2021

Now for AI’s Latest Trick: Writing Computer Code

Posted by in categories: cybercrime/malcode, information science, robotics/AI, transportation

Advances in machine learning have made it possible to automate a growing array of coding tasks, from auto-completing segments of code and fine tuning algorithms… See More.


Programs such as GPT-3 can compose convincing text. Some people are using the tool to automate software development and hunt for bugs.

Apr 24, 2021

Carbon dioxide turned into oxygen on Mars

Posted by in categories: space, sustainability

Perseverance has performed a test of its MOXIE instrument to convert carbon dioxide into oxygen for the first time on Mars.