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Apr 12, 2024

Novel Quantum Effect Observed in a Crystalline Material

Posted by in categories: engineering, particle physics, quantum physics

Physicists have observed a novel quantum effect termed “hybrid topology” in a crystalline material. This finding opens up a new range of possibilities for the development of efficient materials and technologies for next-generation quantum science and engineering.

The finding, published on April 10th in the journal Natur e, came when Princeton scientists discovered that an elemental solid crystal made of arsenic (As) atoms hosts a never-before-observed form of topological quantum behavior. They were able to explore and image this novel quantum state using a scanning tunneling microscope (STM) and photoemission spectroscopy, the latter a technique used to determine the relative energy of electrons in molecules and atoms.

This state combines, or “hybridizes,” two forms of topological quantum behavior—edge states and surface states, which are two types of quantum two-dimensional electron systems. These have been observed in previous experiments, but never simultaneously in the same material where they mix to form a new state of matter.

Apr 12, 2024

SpaceX slow-motion video shows Raptor engine shutting down

Posted by in category: space travel

SpaceX has shared dramatic slow-motion footage showing a Raptor engine powering down at the end of a recent test fire.

“Shutdown of a Raptor vacuum engine in slow motion,” SpaceX said in a message accompanying the video (below). It added that the engine’s nozzle “is sized for use by Starship in the Earth’s upper atmosphere and outer space, so operation at sea level and low chamber pressures results in flow separation creating visible rings in the exhaust.”

Apr 12, 2024

Novel hydrogel removes microplastics from water

Posted by in categories: health, materials

Microplastics pose a great threat to human health. These tiny plastic debris can enter our bodies through the water we drink and increase the risk of illnesses. They are also an environmental hazard; found even in remote areas like polar ice caps and deep ocean trenches, they endanger aquatic and terrestrial lifeforms.

Apr 12, 2024

OpenAI Fires Researchers for Leaking Information

Posted by in category: robotics/AI

After months of leaks, OpenAI has apparently fired two researchers who are said to be linked to company secrets going public.

As The Information reports based on insider knowledge, the firm has fired researchers Leopold Aschenbrenner — said to be a close ally of embattled cofounder Ilya Sutskever — and Pavel Izmailov.

Both men had worked on OpenAI’s safety team, per the report, though most recently, Aschenbrenner had been working on its so-called “superalignment” efforts while Izmailov was tasked with researching AI reasoning. We’ve reached out to OpenAI and Microsoft, its major investor, for further context.

Apr 12, 2024

How Do Machines ‘Grok’ Data?

Posted by in category: robotics/AI

By apparently overtraining them, researchers have seen neural networks discover novel solutions to problems.

Apr 12, 2024

Evidence of a new subatomic particle observed

Posted by in category: particle physics

The BESIII collaboration have reported the observation of an anomalous line shape around ppbar mass threshold in the J/ψ→γ3(π+π-) decay, which indicates the existence of a ppbar bound state. The paper was published online in Physical Review Letters.

Apr 12, 2024

Tesla reveals humanoid robot technology through new patents

Posted by in category: robotics/AI

Tesla has revealed some of its humanoid robot technology through filings for several new patents related to its Optimus robot program.

A few months ago, Tesla unveiled “Optimus Gen 2”, a new generation of its humanoid robot that should be able to take over repetitive tasks from humans.

The new prototype showed a lot of improvements compared to previously underwhelming versions of the robot, and it gave some credibility to the project.

Apr 12, 2024

Draft-MicroPsi-JBach-07–03-30.pdf

Posted by in category: futurism

Joscha Bach principles of synthetic intelligence.


Shared with Dropbox.

Apr 12, 2024

SpaceX’s Starship: Revolutionizing Space Travel

Posted by in category: space travel

SpaceX LabPadre Space

Apr 12, 2024

SpaceX’s Starship Launch 5 and Elon Musk’s Ambitious Plans

Posted by in categories: Elon Musk, space travel

SpaceX’s upcoming Starship launch and Elon Musk’s ambitious plans for the rocket’s production and capabilities have generated excitement and anticipation among fans and industry observers Questions to inspire discussion What is SpaceX’s upcoming Starship launch? —The upcoming Starship launch refers to SpaceX’s ambitious plans for the rocket’s production and capabilities, generating excitement and anticipation among fans and industry observers.

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