Lifeboat Foundation

Simple rules generating complicated networks may be how to build the universe.

Contributing Correspondent

Most of the pieces of Elon Musk’s Master Plan, Part Deux are already in place. Tesla’s mass-market cars, the Model 3 and Model Y, have already been released. The Solar Roof is finally seeing a ramp. And the release of a feature-complete version of the company’s Full Self-Driving suite seems to be drawing closer.

For Tesla’s Full Self-Driving suite to be feature-complete, the electric car maker would need to master inner-city driving. FSD already works for highway driving with Navigate on Autopilot with automatic lane changes. But when it comes to inner-city streets, Full Self-Driving still has some ways to go. Fortunately, if Tesla’s v10.2 2020.12.5 release is any indication, it appears that more and more aspects of city driving are becoming recognized by the company’s neural networks.

Mathematicians and neuroscientists have created the first anatomically accurate model that explains how vision is possible.

Students from Australia have unearthed a trove of rare treasures at a site in Israel and may have solved the mystery to King David’s long-lost city of Ziklag.

Strange particles observed by an experiment in Antarctica could be evidence of an alternative reality where everything is upside down.

A nightly jaunt on the exercise wheel enhances muscle-repair capabilities in old mice, according to a new study by researchers at Stanford School of Medicine.

Only older mice saw this benefit, which the researchers found is due to the rejuvenation of the animals’ muscle stem cells.

“The effect in old animals is very significant,” said Thomas Rando, MD, Ph.D., professor of neurology and neurological sciences and director of Stanford’s Glenn Center for the Biology of Aging. “We found that regular exercise restores youthfulness to tissue repair. Their muscle stem cells start to look and behave like those of much younger animals.”

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“We were very pleased to find out that even though life span is a very complicated trait caused by variation on a large number of loci, which is true for most complex traits, the number of loci that are in common is a totally finite number. So, we can imagine going on to the next stage and investigating one gene at a time and in combination,” Mackay said.

Scientists believe about 25 percent of the differences in human life span is determined by genetics—with the rest determined by environmental and lifestyle factors. But they don’t yet know all the genes that contribute to a long life.

A study published March 5, 2020, in PLOS Biology quantified variation in life span in the fruit fly genome, providing valuable insights for preserving health in elderly humans—an ever-increasing segment of the population. The paper titled “Context-dependent genetic architecture of Drosophila life span” is the culmination of a decade of research by Clemson University geneticists Trudy Mackay and Robert Anholt.

Continue reading “Geneticists zeroing in on genes affecting life span” »

Circa 2015

Coupling electromagnetic waves to mechanical waves has led to a remarkable miniaturization of wireless communication technologies. Now, spin waves could provide us with technologies that are small and reprogrammable.