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Memory storage technology has come a long way from compact disks. Or has it? In a recent paper, scientists report they were able to fit petabytes of memory onto a compact disk using new laser technologies and advanced material design. Is this the future of data storage? Let’s have a look.

Continue reading “Compact Disks make Comeback: Memory could Exceed Petabytes” »

Nuclear fusion is a great idea, in principle. In principle, it could solve the energy worries of the world beautifully. The problem is that whenever we’ve tried, getting nuclear fusion to work takes up more energy than it creates. But a team from Japan and the United States just got us a bit closer to our dream of clean energy. They recently succeeded in controlling nuclear plasma in a stellarator by creating a virtual twin. What’s a stellarator, what is digital twin and what did they actually do? Let’s have a look.

The new paper is here: https://www.nature.com/articles/s4159…

Continue reading “First Nuclear Plasma Control with Digital Twin” »

Potentially good technology if it makes it to market. A new semiconductor would be great!

Researchers at the Georgia Institute for Technology have found a new semiconductor that’s a really good candidate for making computers faster and smaller than ever. Amazingly enough, it works by combining graphene with silicon carbide, to give a material with a sensible band gap that still has a high thermal conductivity.

Continue reading “This New Semiconductor Could Revolutionize Computing” »

Magnetic random-access memories (MRAMs) are data storage devices that store digital data within nanomagnets, representing it in binary code (i.e., as “0” or “1”). The magnetization of nanomagnets inside these memory devices can be directed upward or downward.

Over the past decade, electronics engineers have introduced techniques that can switch this direction using in-plane electrical currents. These techniques ultimately enabled the creation of a new class of MRAM devices, referred to as spin-orbit torque (SOT)-MRAMs.

While existing techniques to switch magnetization direction of nanomagnets in SOT-MRAMs have proved effective, many only work if external magnetic fields are aligned with the direction of the electric current. In a recent paper published in Nature Electronics, researchers at the National University of Singapore demonstrated the field-free switching of the perpendicular magnetic anisotropy (PMA) ferromagnet cobalt iron boron (CoFeB) at ambient conditions.

New Patreon page! https://www.patreon.com/seanmcarroll.

Blog post: https://www.preposterousuniverse.com/podcast/2018/08/13/epis…n-nothing/

Continue reading “Episode 9: Solo — Why Is There Something Rather than Nothing?” »

GOOGLE’S NEW SENSOR DENOISNG ALGORITHM brings yet another game changer for LOW LIGHT PHOTOGRAPHY. Within a handful of years, this will be added to other factors coming down the pipe, giving further impetus to a revolution in night vision. The video below speaks for itself. In effect, the system takes a series of images from different angles, exposures, and so on, then accurately reconstructs what is missing:

❤️ Check out Weights & Biases and sign up for a free demo here: https://wandb.com/papers.

Continue reading “Google’s New AI Learned To See In The Dark! 🤖” »

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Continue reading “What If Humanity Is Among The First Spacefaring Civilizations?” »

❤️ Check out Lambda here and sign up for their GPU Cloud: https://lambdalabs.com/papers.

📝 My paper “The flow from simulation to reality” with clickable citations is available here:
https://www.nature.com/articles/s41567-022-01788-5
📝 Read it for free here! https://rdcu.be/cWPfD

Continue reading “Wow, A Simulation That Looks Like Reality! 🤯” »

❤️ Check out Weights & Biases and sign up for a free demo here: https://wandb.com/papers.

📝 The paper “A Fast Unsmoothed Aggregation Algebraic Multigrid Framework for the Large-Scale Simulation of Incompressible Flow” is available here:
http://computationalsciences.org/publications/shao-2022-multigrid.html.

Continue reading “A 1,000,000,000 Particle Simulation! 🌊” »