Museums put ancient DNA to work for wildlife
Scientists who are trying to save species at the brink of extinction are finding help in an unexpected place.
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כתבות אחרונות מאתר 'Phys'
NASA sounding rocket technology could enable simultaneous, multi-point measurements—first-ever capability
NASA engineers plan to test a new avionics technology—distributed payload communications—that would give scientists a never-before-offered capability in sounding rocket-based research.
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How aerosols affect our climate
For many, the word "aerosol" might conjure thoughts of hairspray or spray paint. More accurately, though, aerosols are simply particles found in the atmosphere. They can be human-made, like from car exhaust or biomass burning, or naturally occurring, from sources such as volcanic eruptions or sea spray.
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Assigning workers to new networks boosts sustainability
Organizations looking to lead quests for sustainability can train troops within their ranks, but the traditional boundaries like experience, seniority and departments aren't where the payoffs lie.
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Scientists unwind mystery behind DNA replication
The molecules of life are twisted. But how those familiar strands in DNA's double helix manage to replicate without being tangled up has been hard to decipher. A new perspective from Cornell physicists is helping unravel the mystery.
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Weaving quantum processors out of laser light
An international team of scientists from Australia, Japan and the United States has produced a prototype of a large-scale quantum processor made of laser light.
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Mapping global biodiversity change
A new study, published in Science, which focuses on mapping biodiversity change in marine and land ecosystems shows that loss of biodiversity is most prevalent in the tropic, with changes in marine ecosystems outpacing those on land. The research, led by scientists from the University of St Andrews, in collaboration with leading universities across Europe, the USA and Canada, including McGill, aimed at reaching a consensus about variation in biodiversity change. It found that there were both negative and positive changes in ecosystems across the world and that although on average the numbers of species that live in each place are not changing, many regions were either gaining or losing species.
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Stranded whales detected from space
A new technique for analysing satellite images may help scientists detect and count stranded whales from space. Researchers tested a new detection method using Very High Resolution (VHR) satellite images from Maxar Technologies of the biggest mass stranding of baleen whales yet recorded. It is hoped that in the future the technique will lead to real-time information as stranding events happen.
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Ancient stars shed light on Earth's similarities to other planets
Earth-like planets may be common in the universe, a new UCLA study implies. The team of astrophysicists and geochemists presents new evidence that the Earth is not unique. The study was published in the journal Science on Oct. 18.
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Newly discovered microbes band together, 'flip out'
When researchers in Nicole King's lab looked through a microscope at the strange organisms they had collected in Curaçao, they saw sheets of cells clustered together in a pattern that resembled skin. That was unusual enough, since these unicellular organisms are normally loners. But then they did something really bizarre: The sheets "flipped" from a shallow cup shape into little ball-like structures and starting swimming around.
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