Zebra stripes, leopard spots and other patterns on the skin of frozen metal alloys that defy conventional metallurgy
Figure 1: The droplets of gallium liquid metal. Credit: Jialuo Han, UNSW While it is fascinating that living creatures develop distinct patterns on their skin, what may be even more mysterious is their striking similarity to the skin of frozen liquid metals. Pattern formation is a classic example of one of nature’s wonders that scientists […]
Frozen: Cutting-edge technology reveals structures within cells
The cells in our body are in motion. Some migrate from A to B to heal wounds or fight pathogens. They do so with the help of small “feet” at the leading edge of migrating cells, so-called lamellipodia. These thin extensions are pushed forward and bind to the surface while the rest of the cell […]
How long can human embryos stay frozen?
On Oct. 26, a healthy baby girl was born from an embryo that had been frozen for 27 years, a possible record for the longest a human embryo has stayed frozen before being born, according to recent news reports. Molly Everette Gibson was born from an embryo frozen in 1992 and stored in a cryogenic […]
Leakage from frozen layers was a puzzle, but a new study shows how the potent greenhouse gas breaks through icy barriers — ScienceDaily
Methane, the main component of natural gas, is the cleanest-burning of all the fossil fuels, but when emitted into the atmosphere it is a much more potent greenhouse gas than carbon dioxide. By some estimates, seafloor methane contained in frozen formations along the continental margins may equal or exceed the total amount of coal, oil, […]
SARS-CoV-2 relative found lurking in frozen bats from Cambodia
For the first time, close relatives of the novel coronavirus have been found outside China. Scientists discovered the two viruses in frozen bats and bat droppings stored in Cambodian and Japanese laboratories, Nature News & Comment reported. As SARS-CoV-2, the virus that causes COVID-19, continues to circulate worldwide, scientists have never stopped hunting for the […]
New 3D moon models show it might hold up to 15,000 miles of frozen water
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