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Jan 20, 2023

Affordable Cultured Meat Is a Step Closer With New Approval

Posted by in category: biotech/medical

The approval was granted by the Singapore Food Agency, and means Good Meat is allowed to use synthetic processes to create its products.

Cultured meat is grown from animal cells and is biologically the same as meat that comes from an animal. The process starts with harvesting muscle cells from an animal, then feeding those cells a mixture of nutrients and naturally-occurring growth factors (or, as Good Meat’s process specifies, amino acids, fats, and vitamins) so that they multiply, differentiate, then grow to form muscle tissue, in much the same way muscle grows inside animals’ bodies.

Usually, getting animal cells to duplicate requires serum. One of the more common is fetal bovine serum, which is made from the blood of fetuses extracted from cows during slaughter. It sounds a bit brutal even for the non-squeamish carnivore. Figuring out how to replicate the serum’s effects with synthetic ingredients has been one of the biggest hurdles to making cultured meat viable.

Jan 20, 2023

Standard Model of Cosmology Survives JWST’s Surprising Finds

Posted by in category: cosmology

Reports that the James Webb Space Telescope killed the reigning cosmological model turn out to have been exaggerated. But astronomers still have much to learn from distant galaxies glimpsed by Webb.

Jan 20, 2023

Photonic hopfions: Light shaped as a smoke ring that behaves like a particle

Posted by in categories: climatology, mathematics, nanotechnology, particle physics, quantum physics

We can frequently find in our daily lives a localized wave structure that maintains its shape upon propagation—picture a smoke ring flying in the air. Similar stable structures have been studied in various research fields and can be found in magnets, nuclear systems, and particle physics. In contrast to a ring of smoke, they can be made resilient to perturbations. This is known in mathematics and physics as topological protection.

A typical example is the nanoscale hurricane-like texture of a magnetic field in magnetic thin films, behaving as particles—that is, not changing their shape—called skyrmions. Similar doughnut-shaped (or toroidal) patterns in 3D space, visualizing complex spatial distributions of various properties of a wave, are called hopfions. Achieving such structures with is very elusive.

Recent studies of structured light revealed strong spatial variations of polarization, phase, and amplitude, which enable the understanding of—and open up opportunities for designing—topologically stable optical structures behaving like particles. Such quasiparticles of light with control of diversified topological properties may have great potential, for example as next-generation information carriers for ultra-large-capacity optical information transfer, as well as in quantum technologies.

Jan 20, 2023

Shocking!! New Nanomaterial Produces Hydrogen Through Light!!

Posted by in categories: innovation, nanotechnology

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Jan 20, 2023

Powerful laser blast used to control lightning for the first time

Posted by in categories: climatology, particle physics

“Although this research field has been very active for more than 20 years, this is the first field-result that experimentally demonstrates lightning guided by lasers,” the researchers wrote in the study. “This work paves the way for new atmospheric applications of ultrashort lasers and represents an important step forward in the development of a laser based lightning protection for airports, launchpads or large infrastructures.”

Lightning emerges when atmospheric static electricity, generated by the friction of ice clumps and rain in stormclouds, separates electrons from atoms. The negatively charged electrons then pool at the stormcloud’s base and attract positive charges from the ground. As electrons steadily accumulate, they begin to overcome the resistance of the air to their flow, ionizing the atmosphere below them as they approach the ground in multiple forking (and invisible) “leader” paths. When the first leader path makes contact with the ground, electrons hop to the earth from the point of contact, discharging from the bottom up in a flash of lightning (called the return stroke) that travels to the top of the cloud.

Jan 20, 2023

Nuclear energy could help astronauts survive 336-hour-long lunar nights

Posted by in categories: nuclear energy, transportation

Crews caught in sun-free cycles will need to get creative with energy production.


When astronauts on the Artemis mission and beyond spend long periods in Lunar Night, they’ll need innovative forms of energy to power vehicles and research instruments.

Jan 20, 2023

When Being Larger in Size in Earth’s Past May Have Led to Extinction

Posted by in category: existential risks

When the bird on the left died off 65 million years ago, why did the one on the right thrive?


Janavis, a beak-toothed bird died while another species called the Wonderchicken survived. Could being smaller explain why the latter lived?

Jan 20, 2023

Move over, ChatGPT: These chatbots let you talk to historical figures

Posted by in category: robotics/AI

But experts warn that such sites could spew out hateful content.

We all have heard of ChatGPT by now but there are some other incredible applications out there that let you indulge in perhaps even more engaging conversations. The Hello History app and Character. AI websites allow users to speak with both fictional and historical figures such as Tony Stark or Shakespeare.

How can AI chatbots connect us with philosophers?

Continue reading “Move over, ChatGPT: These chatbots let you talk to historical figures” »

Jan 20, 2023

ESA’s Gaia finds exoplanet with nuclear fusion reaction at its core

Posted by in category: space

This “may be the first direct detection of a ‘Gaia exoplanet.’”

The European Space Agency’s (ESA’s) Gaia spacecraft helped capture an exoplanet, paving the way for follow-up observations that revealed the distant planet had a nuclear fusion reaction in its core.

“The discovery of HD 206,893 c is a really important moment for the study of exoplanets, as ours may be the first direct detection of a ‘Gaia exoplanet,’” Professor Sasha Hinkley at the University of Exeter in England explained in a press statement.

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Jan 20, 2023

Amazon Wants To Help Community Colleges, HBCUs Teach AI

Posted by in categories: education, robotics/AI

Amazon has launched an “educator enablement” program to help instructors at community colleges, HBCUs, and other minority-serving institutions learn and teach AI.


Quality AI education is still out of reach for many students who don’t attend selective research universities including many Black and Latino/a students. Amazon hopes to change that by investing in AI education at community colleges and HBCUs.