Physics

Taking quantum control over the building blocks of life

Illustration of a carbon molecule undergoing laser cooling. Credit: Nicoletta Barolini, Columbia University Life (as we know it) is based on carbon. Despite its ubiquity, this important element still holds many secrets, on Earth and in the heavens above. For example, astrophysicists such as Daniel Wolf Savin of Columbia, who study interstellar clouds, want to …

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NASA blasts away from Australian Outback in ‘historic’ launch

Credit: Pixabay/CC0 public domain NASA’s first-ever launch from a commercial site outside the United States launched late Sunday in Australia’s Outback, marking a “historic” moment for the country’s aerospace industry. In the first of three planned launches from the Arnhem Space Center, the rocket, using technology similar to a “mini Hubble” telescope, lifted off – …

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Forget lasers. The hot new tool for physicists is good

Sound waves can also direct objects in organisms. Daniel Ahmed, engineer at ETH Zurich in Switzerland, recently used ultrasound to move hollow plastic beads into a living zebrafish embryo. By doing these experiments, Ahmed aims to demonstrate the potential of using sound to direct drugs to a target site in an animal, such as a …

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Worm Custom Suits That Can Deliver Functional Load

Naked A. simplex and A. simplex covered with a hydrogel sheath containing fluorescent dye. Credit: Shinji Sakai James Bond’s legendary Quartermaster Q provided the special agent with an endless array of tools and gadgets to help him complete his missions. Now, researchers from Japan have shown that they are equally adept at equipping microscopic worms …

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Miss McDonnell allegedly danced sexually with a sixth-year student at Skinandi's local nightclub in March 2018.

Teacher confesses to ‘excessive amount of alcohol’ the night she allegedly kissed and groped a student

A teacher accused of kissing and groping a student has admitted to drinking ‘excessively’ alcohol‘ on the night in question. Ashley McConnell, 34, said she frequented several bars and ordered two drinks at once, as well as shots during a night out in Thurso, Caithness, with friends in March 2018. The physics teacher, who taught …

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Rogue black hole in Milky Way galaxy in an artist

‘Rogue black holes’ may not be ‘rogue’ or ‘black holes’

When a star 20 times as massive as our sun dies, it can explode in a supernova and squeeze back down into a dense black hole (with the help of gravity). But that explosion is never perfectly symmetrical, so sometimes the resulting black holes shoot into space. These wandering objects are often referred to as …

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Neutrinos: “Ghostly Chameleons” Get Even More Mysterious

Neutrinos have long been one of the most confusing and mysterious of all known subatomic particles — but they only got more confusing after two groups of scientists announced conflicting results. Neutrinos are like ghostly chameleons Neutrinos are often said to be the spirits of the physical world because they interact so little with matter, …

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World’s largest bacteria found in Caribbean mangrove swamp

This microscope image provided by the Lawrence Berkeley National Laboratory in June 2022 shows thin strands of Thiomargarita magnifica bacterial cells next to an American dime. The species was discovered among the mangroves of the Guadeloupe Archipelago in the French Caribbean. A team of researchers from the Department of Energy (DOE) Joint Genome Institute (JGI), …

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Roommates are all about chemistry, molecularly speaking

Paenibacillus bacteria shown colonized in a Petri dish. In the test house, the bacterial species was associated with coffee molecules and found where coffee was prepared. The bacteria may have healthy properties. Credit: Prof. dr. Eshel Ben-Jacob, Wikimedia In and on every human being are countless microorganisms – the microbiota that help shape and direct …

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Andrey Shirokov, left, of Moscow State University in Russia, who has been a visiting scientist at Iowa State, and James Vary of Iowa State are part of an international team of nuclear physicists who theorized, predicted and announced a four-neutron structure in 2014 and 2016. Archive photo by Christopher Gannon for the College of Liberal Arts and Sciences.

Tetraneutron – an exotic state of matter discovered

A long-standing question in nuclear physics is whether chargeless nuclear systems can exist. Only neutron stars represent nearly pure neutron systems, where neutrons are compressed to very high densities by gravity. The experimental search for isolated multi-neutron systems has been an ongoing quest for decades, with particular reference to the four-neutron system called the tetraneutron. …

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