Phys.org news
Phys.org / Seaweed-derived coating keeps strawberries fresher than a fridge
University of British Columbia researchers have developed an edible, seaweed-derived coating that can keep strawberries fresh for at least four days at room temperature, outperforming uncoated berries stored in the refrigerator.
Phys.org / Magnetic dopants help quantum dots use light for chemical reactions
Scientists at Los Alamos National Laboratory have demonstrated a new quantum-dot mechanism that could significantly expand the reach of light-driven chemistry. By introducing magnetic manganese dopants into semiconductor ...
Phys.org / New method could sharpen diamond quantum sensors for tracking activity in single cells
A diamond-based quantum sensor inserted into a living cell can provide previously unseen levels of detail about how life works and how diseases form. "Think of it as an EKG for a single cell—a way to capture everything happening ...
Phys.org / DNA study uncovers deeper losses across Hawaiian honeycreeper family tree
Smithsonian researchers have identified the genetic relationships among all Hawaiian honeycreeper species known to have existed—and subsequently faced major losses—since the arrival of Europeans to the islands.
Phys.org / Pushing the boundaries of ultracold neutral plasmas
Using a combination of laser cooling techniques and strong magnetic fields, researchers at Colorado State University have for the first time created an ultracold neutral plasma with electrons cooled to temperatures measured ...
Phys.org / Scientists build 'cell villages' to map the genetics of brain cell fitness
How readily a cell divides and how well it survives are fundamental to life, shaping everything from organ size to the body's ability to withstand disease. That combination, known as cell fitness, isn't the same for everyone. ...
Phys.org / Unexpected bond-breaking order reveals a new path to bioluminescence
The dancing lights of fireflies and the eerie blue sparkle in crashing waves get their glow when a molecular square of carbon and oxygen atoms breaks. New research from Stanford University has shown that mechanical force ...
Dialog / How to keep the Earth habitable when the sun dies
In a billion years, the sun will start to run out of fuel and expand to become a red giant. Earth's oceans and atmosphere will be burned away, and Earth will likely be engulfed by the sun altogether. The sun will then shrink ...
Phys.org / Ant teams beat gravity-based puzzle solvers
Ants live in highly organized colonies and cooperate daily to tackle a wide range of problems. Their striking group behaviors have fascinated biologists for centuries and even inspired the development of various artificial ...
Phys.org / Simulations hint at a hidden population of companionless black holes
So far, almost all stellar-mass black holes detected by astronomers have been found in binary systems. However, astronomers have long suspected that these binary black holes are the exception and that, within the Milky Way, ...
Phys.org / New quantum encryption method prevents ciphertext from being cloned
Digital security currently relies on difficult equations to protect data. For example, when you use a credit card online, the information is locked inside a math problem that would take a modern computer thousands of years ...
Phys.org / New models shed light on how an exotic phase of hydrogen in Earth's core may behave
While Earth's core consists mostly of iron, its density implies that lighter elements are also mixed in. Because hydrogen is abundant in the universe and can mix with iron under certain conditions, scientists suspect it makes ...