Lifeboat Foundation

Photo : siqi zhao & huirong yan.

Astrophysicists from the University of Potsdam have made a significant step toward solving the last puzzle in magnetohydrodynamic turbulence theory by observing the weak to strong transition in the space plasma turbulence surrounding Earth with newly developed multi-spacecraft analysis methods. Their pioneering discovery was published today in the journal Nature Astronomy.

Turbulence is ubiquitous in nature. It exists everywhere, from our daily lives to the distant universe, while being labelled as “the last great unsolved problem of classical physics” by Richard Feynman.

Overturned that picture entirely. The Universe, on the largest of cosmic scales, wasn’t static and unchanging at all, but rather was dynamically expanding.

If that’s true, and the Universe is expanding, then what else is expanding along with it? Is our galaxy expanding? What about the Solar System, planet Earth, or even the atoms in our own body? That’s the topic of this week’s inquiry courtesy of Jim Robison, who asks:

“We are part of the expanding universe. Does that mean we are expanding with it? Is the distance between the Earth and the Sun expanding, or between San Francisco and New York? Is the distance between the atoms in my body expanding? Is that why I need a larger belt?”

OpenAI and Reddit reach deal that will give ChatGPT access to content on the social media platform.

Country folk tend to like the independence offered by their cars, so how do you get them to use public transit? The Monocab system may be the answer, as it utilizes individual on-demand pods that travel on existing abandoned railways.

It’s a bit of a vicious circle. Many people in rural areas prefer using their cars for getting to and from urban centers whenever they want, as opposed to waiting for the few buses or trains. This lack of interest in public transit results in even fewer buses and trains being offered, leading to even less uptake by the locals.

Continue reading “Self-balancing commuter pods ride old railway lines on demand” »

Despite being in its early release stages, GPT-4o is seemingly great at writing and detecting errors in code.

Sony has shown off its new surgical robot doing some super-precise work sewing up a tiny slit in a corn kernel. It’s the first machine of its kind that auto-switches between its different tools, and has successfully been tested in animal surgery.

It’s designed to help in the field of super-microsurgery, a highly specialized field in which surgeons operate on extremely small blood vessels and nerves, with diameters well under 1 mm (0.04 in). As you might imagine, this kind of thing requires incredibly steady hands, and specialists in this field often do their work whole looking through a microscope.

Continue reading “Watch: Sony’s new microsurgery robot stitches up a corn kernel” »

If you’re worried about your data, here’s what you can do, including how to reset your AT&T account passcode.

A British consortium with funding from the UK government has successfully tested what it calls “un-jammable” quantum navigation tech in flight.

Geopolitical tensions and warfare have introduced GPS jamming as a means of messing with enemy communication and navigation. This can cause disturbances for both military and civilian transportation and location services.

The quantum-based navigation system is called Positioning, Navigation, and Timing (PNT). Its developers are quantum technology firm Infleqtion’s UK subsidiary in collaboration with aerospace company BAE Systems and defence tech contractor QinetiQ, among others.

From Stanford TRANSIC: Sim-to-Real Policy Transfer by Learning from Online Correction.

From Stanford.

TRANSIC: Sim-to-Real Policy Transfer by Learning from Online Correction.

Continue reading “TRANSIC: Sim-to-Real Policy Transfer by Learning from Online Correction” »