Immortal Quantum Particles

four purple beads
Strong quantum interactions prevent quasiparticles from decay.Image: K. Verresen / TUM

Oscillating quasiparticles: The cycle of decay and rebirth. Decay is relentless in the macroscopic world: broken objects do not fit themselves back together again. However, other laws are valid in the quantum world: new research shows that so-called quasiparticles can decay and reorganize themselves again and are thus become virtually immortal. These are good prospects for the development of durable data memories.

As the saying goes, nothing lasts forever. The laws of physics confirm this: on our planet, all processes increase entropy, thus molecular disorder. For example, a broken glass would never put itself back together again.

Theoretical physicists at the Technical University of Munich (...

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Rare ‘Superflares’ could one day Threaten Earth

Giant solar flare illustration (stock image).
Credit: © Peter Jurik / Adobe Stock

New research shows that the sun could experience a massive burst of energy called a superflare sometime in the next several thousand years. These events occur when stars, for reasons that scientists still don’t understand, eject huge bursts of energy that can be seen from hundreds of light years away. Until recently, researchers assumed that such explosions occurred mostly on stars that, unlike Earth’s, were young and active.

Now, new research shows with more confidence than ever before that superflares can occur on older, quieter stars like our own — albeit more rarely, or about once every few thousand years.

The results should be a wake-up call for life on our planet, said Yuta Notsu, the lead a...

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Increasing Red Meat intake linked with Heightened risk of early Death

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Association of changes in red meat consumption with total and cause specific mortality among US women and men: two prospective cohort studiesBMJ, 2019; l2110 DOI: 10.1136/bmj.l2110

Swapping red meat for healthier animal or plant-based alternatives such as eggs and fish, whole grains and vegetables may lower risk. Processed red meat in particular is associated with a heightened risk of death, suggests a large US study published in The BMJ today.

High intake of red meat, such as beef, pork and lamb, has been previously linked with a higher risk of type 2 diabetes, cardiovascular disease, certain types of cancers, and premature death. But little is known about how changes in red meat intake may influence risk of death.

So to explore this further, a team of researchers based in t...

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Light-Powered Nano-organisms consume CO2, create Eco-friendly Plastics and Fuels

Microbes
A gram of biodegradable plastic created by nanobio-hybrid microbes developed by CU Boulder engineers. Photo: Nagpal Lab / University of Colorado Boulder 

University of Colorado Boulder researchers have developed nanobio-hybrid organisms capable of using airborne carbon dioxide and nitrogen to produce a variety of plastics and fuels, a promising first step toward low-cost carbon sequestration and eco-friendly manufacturing for chemicals.

By using light-activated quantum dots to fire particular enzymes within microbial cells, the researchers were able to create “living factories” that eat harmful CO2 and convert it into useful products such as biodegradable plastic, gasoline, ammonia and biodiesel.

“The innovation is a testament to the power of biochemical processes,” said Prasha...

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