Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog – Page 5946

This research can also offer a glimpse at how other forms of thinking might be organized. “It lets us get at this issue of what are the options for a nervous system or behavior,” Weissbourd says. It’s hard to put yourself into the mind of a jellyfish—their life cycle of polyps and spores is utterly alien, their weird array of sensory organs have no analogues to our own. Clytia have specialized balance organs called statocysts; other species of jellyfish have sensors called rhopalia that detect light or chemical changes in the surrounding water.

Researchers have observed some things that could be thought of as akin to our emotional states; for example, Clytia display a unique set of behaviors when spawning, and they perform their feeding action more quickly when they’re hungry. “But they might have a totally different set of nervous system states,” Weissbourd says.

These gene-tweaked jellies are an exciting new platform for research, says Sprecher. Future experiments will improve our understanding of modular nervous systems, not only in jellyfish but in more complex species too. These are ancient creatures, but we know so little about how they see the world, or if it even makes sense to think of them as “seeing” in the way that mammals do. Literally peering inside them could help provide the answers.

Read more | >

Listen: YouTube | Apple Podcasts | Spotify

In this episode, Dr. Huberman is joined by Dr. David Berson, Professor and Chairman of Neuroscience at Brown University. Dr. Berson discovered the neurons in your eye that set your biological rhythms for sleep, wakefulness, mood and appetite. He is also a world-renowned teacher of basic and advanced neuroscience, having taught thousands of university lectures on this topic. Many of his students have become world-leading neuroscientists and teachers themselves.

Here Dr. Berson takes us on a structured journey into and around the nervous system, explaining: how we perceive the world and our internal landscape, how we balance, see, and remember. Also, how we learn and perform reflexive and deliberate actions, how we visualize and imagine in our mind, and how the various circuits of the brain coordinate all these incredible feats.

Read more | >

Researchers at the University of East Anglia and the University of Manchester have helped conduct a 16-year long experiment to challenge Einstein’s theory of general relativity.

The international team looked to the stars — a pair of extreme stars called pulsars to be precise – through seven radio telescopes across the globe.

And they used them to challenge Einstein’s most famous theory with some of the most rigorous tests yet.

Read more | >

They’ve become an essential ingredient of astrophysics.

Black holes helped to explain new astronomical discoveries, becoming essential ingredients of astrophysics. Science regarded black holes as abstractions until the 1960s. The recent experimental discovery of gravitational waves has changed our understanding of what black holes are.

In 2016, the LIGO-Virgo collaboration detected gravitational waves generated by two merging black holes, opening a new era of astronomy celebrated by the 2017 Nobel Prize in physics.

In 2019, the Event Horizon Telescope released an image of the supermassive black hole in the nearby galaxy M87. The following year, the Nobel Prize in physics recognized the trailblazing theoretical black hole studies of Roger Penrose and the observational ones by Andrea Ghez and Reinhard Genzel.

Continue reading “How our views on black holes have changed since Einstein” | >

This week’s image from the Hubble Space Telescope captures the glorious spiral galaxy UGC 11,537, seen at an angle that shows off both its long spiral arms and the bright clump of stars at its center. It is located 230 million light-years away in the constellation of Aquila (Latin for “eagle”).

As well as being pleasing to look at, this image was collected to further scientific knowledge about the enormous black holes at the galaxy’s heart. “This image came from a set of observations designed to help astronomers weigh supermassive black holes in the centers of distant galaxies,” Hubble scientists wrote. “Hubble’s sharp-eyed observations along with data from ground-based telescopes allowed astronomers to make detailed models of the mass and motions of stars in these galaxies, which in turn helps constrain the mass of supermassive black holes.”

Hubble is back up and running this week, with all four of its currently active instruments operational and collecting science data once again. The telescope had been automatically placed into safe mode following a synchronization error in late October, but the error seems to have been a one-off. In the weeks since the error occurred, the Hubble team turned on first one of the older inactive instruments, then each of the currently active instruments one by one.

Read more | >

Mercedez-Benz has announced approval of their “Drive Pilot” system, in Germany, which does fully autonomous operation in highway traffic jam situations. Such systems have been promised for many years. It’s interesting to note that Tesla TSLA-5.2%, which might be able to produce such a system today, has instead put all their focus on their poorly named “full” self-driving product, possibly at the expense of other features like this.

The German certification is designed to be extended to the rest of the world, starting of course with Europe. Honda has sold a modest number of Legend sedans in Japan with this function, and Audi produced one but did not finish the regulatory approval process.

A system like this sometimes called a “level 3” system though those levels are misleading and not typically used by leading self-driving developers. It got that number as a potential half step between driver-assist (Such as Tesla FSD and other Mercedes offerings) and real self-driving. It was dreamed up by regulators with no experience in developing self-driving systems and there’s been a lot of disparate thinking about it over the years.

Read more | >

Humans have been dreaming of living on the Moon, but what would that look like exactly?

Put simply, an outpost (or outposts) on the Moon could benefit humanity in numerous ways. It would allow for regular access to the lunar surface, enable vital research into low-gravity and its effects on terrestrial organisms, and shave billions off of the cost of missions destined for Mars and other locations in deep space.

Beyond the scientific and spaceflight-related, a lunar outpost would also allow for the creation of new industries, such as lunar mining, space-based solar power, commercial space stations, and lunar tourism. The infrastructure created for this purpose could also lead to a thriving economy in the Earth-Moon system, including asteroid mining and space-based manufacturing.

**The Moon is our gateway to the rest of the Solar System and the first step in any plan for “going interplanetary.” Granted, the challenges are enormous, and the cost of developing all this architecture is nothing short of immense. But as the Loonies say, “TANSTAAFL!”

Continue reading “The Logistics of Going “Interplanetary”: What Does It Take to Live on the Moon?” | >