Calibrating cancer radiotherapy beams using light and sound
Doctors shrink tumors with radiation therapy, but a badly calibrated beam can cause serious complications. Scientists in NIST's Radiation Physics Division in the Physical Measurement Laboratory (PML) are ...
Study shows above ice warming responsible for Larsen-B Ice Shelf collapse, not instability
Scientists observe competing quantum effects on the kinetic energy of protons in water
Superheated Bose-Einstein condensate exists above critical temperature
Study finds warming Atlantic temperatures could increase range of invasive species
"The results will allow us to better understand how the fish communities might shift under different climate change scenarios and provide the type of environmental data to inform future decisions relating ...
Power from the sea? Triboelectric nanogenerator extracts energy from ocean waves
(Phys.org) —As sources of renewable energy, sun and wind have one major disadvantage: it isn't always sunny or windy. Waves in the ocean, on the other hand, are never still. American researchers are now ...
Atoms at negative absolute temperature: The hottest systems in the world
(Phys.org)—In cold regions on earth, negative temperatures on the Fahrenheit or Celsius scale can often occur in winter; in physics, however, they were so far impossible. On the absolute temperature scale ...
Scientists take first dip into water's mysterious 'no-man's land'
Scientists at the Department of Energy's SLAC National Accelerator Laboratory have made the first structural observations of liquid water at temperatures down to minus 51 degrees Fahrenheit, within an elusive ...
Materials scientists make solar energy chip 100 times more efficient
(Phys.org) —Scientists working at the Stanford Institute for Materials and Energy Sciences (SIMES) have improved an innovative solar-energy device to be about 100 times more efficient than its previous ...
Familiar yet strange: Water's 'split personality' revealed by computer model
Seemingly ordinary, water has quite puzzling behavior. Why, for example, does ice float when most liquids crystallize into dense solids that sink?
Coral reefs are better at coping with rising sea temperatures than we thought
Ocean warming affecting Florida reefs
Late-summer water temperatures near the Florida Keys were warmer by nearly 2 degrees Fahrenheit in the last several decades compared to a century earlier, according to a new study by the U.S. Geological Survey.
Tropical collapse caused by lethal heat: Extreme temperatures blamed for 'dead zone'
Scientists have discovered why the 'broken world' following the worst extinction of all time lasted so long – it was simply too hot to survive.