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Jul 2, 2024

Can a computer chip have zero energy loss in 1.58 dimensions?

Posted by in categories: computing, mobile phones, physics

What if we could find a way to make electric currents flow, without energy loss? A promising approach for this involves using materials known as topological insulators. They are known to exist in one (wire), two (sheet) and three (cube) dimensions; all with different possible applications in electronic devices.

Theoretical physicists at Utrecht University, together with experimentalists at Shanghai Jiao Tong University, have discovered that topological insulators may also exist at 1.58 dimensions, and that these could be used for energy-efficient information processing. Their study was published in Nature Physics.

Classical bits, the units of computer operation, are based on : electrons running means 1, no electrons running means 0. With a combination of 0’s and 1’s, one can build all the devices that you use in your daily life, from cellphones to computers. However, while running, these electrons meet defects and impurities in the material, and lose energy. This is what happens when your device gets warm: the energy is converted into heat, and so your battery is drained faster.

Jul 2, 2024

The Biggest Problem in Mathematics Is Finally a Step Closer to Being Solved

Posted by in category: mathematics

Number theorists have been trying to prove a conjecture about the distribution of prime numbers for more than 160 years.

By Manon Bischoff

The Riemann hypothesis is the most important open question in number theory—if not all of mathematics. It has occupied experts for more than 160 years. And the problem appeared both in mathematician David Hilbert’s groundbreaking speech from 1900 and among the “Millennium Problems” formulated a century later. The person who solves it will win a million-dollar prize.

Jul 2, 2024

OpenAI shares a new GPT-4o advanced voice demo — it can teach you a language

Posted by in category: robotics/AI

OpenAI says GPT-4o can be used to teach you a language and a new demo video seems to prove them right.

Jul 2, 2024

Tesla seems to have opened an in-house Giga Berlin “rave cave”

Posted by in categories: sustainability, transportation

Tesla Gigafactory Berlin has probably become the most fun factory among the company’s facilities worldwide. While Giga Berlin plays a huge part in ramping Tesla’s output globally, the electric vehicle maker also seems determined to ensure that the facility’s employees are well supported. This means that if employees need to destress, they would not need to go too far.

With this in mind, it appears that Giga Berlin has launched an in-house “rave cave” of sorts. The facility’s teaser was posted by Tesla’s official Tesla Manufacturing account, which, strangely enough, shared its post with a hamster emoji. Amidst scenes of employees entering the apparent “rave cave” from a futuristic narrow tunnel, images of a cyber-hamster mascot could also be seen.

Jul 2, 2024

Tech company unveils tiny spheres that outperform solar panels using both sun and artificial light — and the company says they could hit 60 times the current capacity

Posted by in categories: solar power, sustainability

19 D-shaped magnetic coils that will make up the core of ITER now arrived in France, to begin construction of the tokamak.

Jul 2, 2024

Physicists Have Created The World’s Most Fiendishly Difficult Maze

Posted by in category: physics

Daedalus could have learned a thing or two from a team of physicists in the UK and Switzerland.

Taking principles from fractal geometry and the strategic game of chess, they have created what they say is the most fiendishly difficult maze ever devised.

Led by physicist Felix Flicker of the University of Bristol in the UK, the group has generated routes called Hamiltonian cycles in patterns known as Ammann-Beenker tilings, producing complex fractal mazes that, they say, describe an exotic form of matter known as quasicrystals.

Jul 2, 2024

Divergent landscapes of A-to-I editing in postmortem and living human brain

Posted by in categories: biological, neuroscience

Adenosine-to-inosine editing is a form of RNA modification observed in the human brain transcriptome. Here the authors question the accuracy of utilizing postmortem samples to reflect the RNA biology of living brains. This is due to significant differences in adenosine-to-inosine editing between living and postmortem brain tissues, with most sites exhibiting higher editing levels postmortem.

Jul 2, 2024

ISP Plants Malware into Its Customers’ PCs to Fight Torrents

Posted by in category: cybercrime/malcode

An interesting way of punishment.

Jul 2, 2024

This 20,000HP AI-generated rocket engine took just two weeks to design and looks like HR Giger’s first attempt at designing a trumpet

Posted by in categories: robotics/AI, space travel

Or maybe just something Wallace and Gromit might jam onto a rocket for a second Grand Day Out.

Jul 2, 2024

How Deep Neural Networks Learn Compositional Data: The Random Hierarchy Model

Posted by in category: robotics/AI

Francesco Cagnetta, Leonardo Petrini, Umberto M. Tomasini, Alessandro Favero, and Matthieu Wyart Institute of Physics EPFL, Institute of Electrical Eng.


A hierarchical model of high-dimensional data reveals how deep neural networks leverage their multiple layers to reduce the data dimensionality and learn from a finite set of examples.

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