Lifeboat Foundation

Spin glasses are alloys formed by noble metals in which a small amount of iron is dissolved. Although they do not exist in nature and have few applications, they have nevertheless been the focus of interest of statistical physicists for some 50 years. Studies of spin glasses were crucial for Giorgio Parisi’s 2021 Nobel Prize in Physics.

The scientific interest of spin glasses lies in the fact that they are an example of a complex system whose elements interact with each other in a way that is sometimes cooperative and sometimes adversarial. The mathematics developed to understand their behavior can be applied to problems arising in a variety of disciplines, from ecology to machine learning, not to mention economics.

Spin glasses are magnetic systems, that is, systems in which individual elements, the spins, behave like small magnets. Their peculiarity is the co-presence of ferromagnetic-type bonds, which tend to align the spins, with antiferromagnetic-type bonds, which tend to orient them in opposite directions.

Elon feels that Starship is moving too slow so he is now throwing a lot more resources at it.

While Elon Musk earns daily headlines over changes at Twitter, a significant reorganization is underway at his space company’s Texas launch facility.

SpaceX president and COO Gwynne Shotwell and vice president Mark Juncosa – two of the most influential executives at the company aside from Musk himself – are now overseeing the facility and operations of the company’s Starbase location, people familiar with the situation told CNBC.

Continue reading “SpaceX shakes up Starship leadership in Texas as push for the rocket’s next milestone intensifies” »

Zuckerberg likes to quote Steve Jobs’ description of computers as “bicycles for the mind.” I can imagine him thinking, “What’s wrong with helping us pedal a little faster?”

https://www.youtube.com/watch?v=rTRzYjoZhIY

And while I reflexively gag at Zuckerberg’s thinking, that isn’t meant to discount its potential to do great things or to think that holding it off will be easy or necessarily desirable. But at a minimum, we should demand a pause to ask hard questions about such barrier-breaking technologies—each quietly in our own heads, I should hasten to add, and then later as a society.

Continue reading “Zuckerberg Wants Facebook to Build a Mind-Reading Machine” »

When you need someone to narrate the history of the universe — and Mel Brooks is busy — you might as well go with Morgan Freeman. Not only has Freeman played God in “Bruce Almighty” and “Evan Almighty,” but he’s also told “The Story of God” and “The Story of Us” for National Geographic.

In “Our Universe,” Freeman is lending his voice to a new six-part nature documentary series for Netflix. As the title implies, this series is even bigger in scope than “The Story of Us.” It’s looking back at the whole history of the universe and how 13.8 billion years have led us to this moment.

Continue reading “Our Universe Trailer: Morgan Freeman Narrates The History Of Everything” »

Amazing title. Going to read it now!

Using a mix of electrical stimulation and intense physical therapy, n ine people with chronic spinal injuries have had their ability to walk restored.

Continue reading “People With Complete Paralysis Walk Again After Nerve Stimulation Breakthrough” »

The US observed Russian naval vessels preparing for a possible test of a new nuclear-powered torpedo in recent weeks, a senior US official with direct knowledge told CNN.

Among the vessels which took part in the preparations was the Belgorod, a cruise missile submarine modified for special operations that is able to launch unmanned underwater vehicles including the Poseidon torpedo.

In the last week, the vessels were observed leaving the testing area in the Arctic Sea and heading back to port without carrying out a test. The US believes the Russians may have encountered technical difficulties.

Vertical axis turbines missed their moment in the 1980s, but they are back, and they are getting bigger. That may come as a surprise. The technology was confined to niche applications and all but written off just a few years ago. Now they are poised for a new growth spurt in the rooftop field, and they are even heading out to sea.

The Long Road To Vertical Axis Wind Turbines

For those of you new to the topic, vertical axis wind turbines are engineered to make curved blades rotate around a central, upright pole. The US Department of Energy’s Sandia National Laboratory was experimenting with a scaled up design that resembled an egg beater back in the 1980s, as depicted in the photo at the top of this article.

Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Never email yourself a file again!

Quantum mechanics, the theory which rules the microworld of atoms and particles, certainly has the X factor. Unlike many other areas of physics, it is bizarre and counter-intuitive, which makes it dazzling and intriguing. When the 2022 Nobel prize in physics was awarded to Alain Aspect, John Clauser and Anton Zeilinger for research shedding light on quantum mechanics, it sparked excitement and discussion.

But debates about quantum mechanics —be they on chat forums, in the media or in science fiction—can often get muddled thanks to a number of persistent myths and misconceptions. Here are four.