To explain the cosmos without invoking cosmic inflation, physicist Neil Turok has proposed the existence of a mirror-image universe going backwards in time from the big bang. He tells us why the idea is so compelling.
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A neuromorphic camera can localize single fluorescent particles to below 20 nm resolution and evaluate the diffusion trajectory with millisecond temporal precision.
Paula and Bill Lishman spent many winters in a poorly-insulated A-frame cabin before realizing they needed to go underground to use the earth’s energy to stay warm, so they knocked the top off a hill, dropped in ferro-cement domes, and covered it up again with dirt.
Thanks to skylights cut into every dome and the white-powdered marble that covers the interior, their earth-sheltered home is naturally well-lit despite being below the frost line.
Fifteen feet below ground, the soil temperature remains about equal to the annual average temperature of the area’s surface air so earth-sheltered homes use sod’s constant temperature to stay warmer in winter and cooler in summer.
Bill Lishman believed in rethinking not just the conventional home, but also how we live. He reimagined his home’s refrigerator by building a round appliance that pops up out of the countertop so the heavier cool air stays inside when opened (via compressed air).
The space tech startup, AstroForge, hopes to complete two proof-of-concept missions this year using SpaceX rockets.
In what might be a groundbreaking moment in space industry history, a new startup plans to launch not one but two space missions this year. This might not sound like a big deal, but the company wants to go into space to find and use minerals from asteroids and other deep-space objects.
With the potentially infinite worth of valuable materials in deep space, asteroid mining startup AstroForge hopes its endeavors will pay off. If successful, this could result in a very healthy return.
It can even liquefy and move through small spaces, just like T-1000 in Terminator 2.
An international team of scientists created sea cucumber-inspired miniature robots that can quickly shift between liquid and solid states.
They built the new robots with a material they dubbed a “magnetoactive solid-liquid phase transitional machine.” The robots are also magnetic and can conduct electricity, as per a press release.
Wang and Pan et al.
This will reduce carbon emissions from mining operations but is that the only way?
TeraWulf, a Minnesota-headquartered company, will become the first entity in the U.S. to power its Bitcoin mining operations with nuclear energy, CNET.
Luza studios/iStock.
Over the years, the puzzles have become more difficult to crack, and miners have dedicated greater computational resources in their bid to earn the coveted new coin. This, in turn, has increased the power consumption of the Bitcoin industry, making it less sustainable than beef farming, and it is estimated to have emitted 86.3 million tons of carbon in 2022 alone.
They produced a signal a mind-bending short 53 billionths of a second.
A team of scientists broke the record for the shortest pulse of electrons ever created. They produced a signal a mere 53 attoseconds long. That’s a mind-bending short 53 billionths of a second.
The researchers say their new achievement could lead to more accurate electron microscopes and could also speed up data transmission in computer chips, as per an institutional press release.
The shortest-ever electron pulse.
Astrophotographers spotted what looks like a third tail flowing in front of, instead of behind, the glowing comet.
The green comet C/2022 E3 (ZTF), which last flew by Earth 50,000 years ago when Neanderthals still coexisted with humans, has been gradually making its way across the night sky over the last few days.
What’s more, as per a LiveScience report, this “anti-tail” appears to be flowing in the wrong direction and is, therefore, seemingly breaking the laws of physics.
NASA
The research is a huge milestone towards fusion energy that can power millions of homes and businesses with a carbon-neutral energy source.
Researchers at the Lawrence Livermore National Laboratory announced that they observed a net gain in nuclear fusion energy for the very first time at the end of 2022. The research is a huge milestone towards fusion energy that can power millions of homes and businesses with a carbon-neutral energy source. However, converting this achievement into a practical nuclear energy source requires innovative technologies to bring fusion-powered society to life.
PNNL
Jacob Haag, the first author of the research, said this is the first study on such material interfaces at too-small length scales. He added they also revealed some fundamental mechanisms that govern the toughness and durability of materials.