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Study details the physics of a café latte

Study details the physics of a café latte

Science
Dec. 13 (UPI) -- New research by scientists sat Princeton University has revealed the physics underlying the delicious layers of a café latte."The structure formation in a latte is surprising because it evolves from the chaotic, initial pouring and mixing of fluids into a very organized, distinct arrangement of layers," researcher Nan Xue said in a news release.Xue is a grad student student working in the lab of Howard Stone, professor of mechanical and aerospace engineering at Princeton.Though inspired by an everyday drink order, Xue's investigation yielded insights into the layering of fluids -- insights that could have a variety of useful applications."From a manufacturing perspective, a single pouring process is much simpler than the traditional sequential stacking of layers in a strat
Sea reptile fossil gives clues to life in ancient oceans

Sea reptile fossil gives clues to life in ancient oceans

Science
A new fossil is shedding light on the murky past of the sea reptiles that swam at the time of the dinosaurs.With tiny heads on long necks and four pointed flippers, plesiosaurs have been likened to Scotland's mythical Loch Ness monster.The German discovery proves that these sea creatures were alive more than 200 million years ago during the Triassic.The fossilised bones give clues to how the animal survived a mass extinction that wiped out most living things.''We now have the proof that this extremely successful group of marine reptiles already existed during Triassic times,'' said paleontologist Martin Sander of the University of Bonn, who examined the fossil with colleague, Tanja Wintrich. ''This had been suspected for over 150 years, but it took a surprisingly long time for the hard evi...
New maps reveal shrinking wilderness around the globe

New maps reveal shrinking wilderness around the globe

Science
Dec. 12 (UPI) -- New maps reveal the scope of the challenge facing wilderness conservationists.As the new maps show, wilderness around the globe is shrinking -- increasingly hemmed in as forests are converted to farmland and development encroaches.Scientists with the Wildlife Conservation Society compiled the maps with the hope that they can assist the work of wildlife managers and conservationists around the world. Researchers published the maps this week in the journal Nature."Despite their importance, wilderness areas are being destroyed at an alarming rate and need urgent protection with almost 10 percent being lost since the early 1990s," James Allan, a doctoral student at Queensland University in Australia, said in a news release. "Their conservation is a global priority."Wilderness ...
Hubble reveals star cluster Messier 79 doing snow globe impression

Hubble reveals star cluster Messier 79 doing snow globe impression

Science
Dec. 12 (UPI) -- A Hubble Space Telescope image features the star cluster Messier 79 doing its best snow globe imitation. The mass of stars is a "globular" cluster, after all.Globular clusters are gravitationally bound collections of stars. The cluster most recently framed by Hubble's lens hosts roughly 150,000 stars -- small potatoes compared to some clusters, which can feature up to a million stars.M79's stars are packed into a sphere-like shape stretching just 118 light-years across. The star globe is positioned within the constellation Lepus, 41,000 light-years from Earth.Stellar clusters are typically centered around the central hub of our spiral galaxy, the Milky Way, but Messier 79 -- sometimes called NGC 1904 -- is found far from our galactic center. Some astronomers estimate the c...
Watch Live: Rocket Lab makes another attempt at rocket launch in New Zealand

Watch Live: Rocket Lab makes another attempt at rocket launch in New Zealand

Science
Dec. 11 (UPI) -- Aerospace startup company Rocket Lab will make another attempt to launch its Electron rocket tonight. Its last attempt was scrubbed when the International Space Station got in the way.The launch window will reopen Monday night at 8:30 p.m. EST -- 2:30 p.m. on Tuesday in New Zealand -- where the launch will take place."The Rocket Lab launch team is on console and readying Electron for the push to orbit today from Launch Complex-1," the company tweeted.The launch will be streamed live on Rocket Lab's website.Rocket Lab is based in the United States but operates a New Zealand subsidiary. If and when the Electron blastoff happens, the rocket will release a trio of satellites belonging to the startup's first clients, the companies Planet and Spire.The payload includes Planet's ...