Engineering Design
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PhysicsHere’s how quantum mechanics lets heat cross a vacuum
Heat can move across a vacuum if the span is small enough. As in really, really small. In a new experiment, the gap was only a few hundred nanometers.
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Health & MedicineViewing virtual reality of icy landscapes may relieve pain
Traveling to polar vistas via virtual reality eased a temporary burning in the viewers’ skin. The same VR also lessened simulated chronic pain.
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ComputingHow math makes movies like Doctor Strange so otherworldly
In the 1970s, a mathematician introduced geometric patterns that he named fractals. Moviemakers are now using those patterns to create dazzling digital effects.
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Materials ScienceThe future of crystal-based solar energy just got brighter
Researchers have upped the efficiency of layered solar cells that could be printed or painted onto surfaces. Now they are working to make them more rugged.
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Climate5 things to know about the climate-saving benefits of tree planting
A recent analysis of the benefits of massive efforts to plant more trees triggered a firestorm of controversy.
By Susan Milius -
BrainSurprise! Exam scores benefit from months of regular sleep
Getting enough consistent, quality sleep accounted for nearly a fourth of the differences in students’ exam scores in class.
By Jeremy Rehm -
Health & MedicineToday’s nico-teen addicts: What role does ‘juuling’ play?
New data show that the most popular type of U.S. vapes deliver nicotine especially efficiently — boosting risk of addiction.
By Janet Raloff -
ChemistryLike Magneto? Microcrystals give magnets superpower over living cells
New iron-rich protein crystals could help researchers better understand the nerve cells that control movement and sensation. All they need are magnets.
By Jeremy Rehm -
AnimalsDrones help scientists weigh whales at sea
Drone imagery lets scientists estimate a whale’s weight. And that may help monitor the health of these big mammals for conservation purposes.
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PhysicsTests challenge whether centuries-old violins really are the best ever
Some centuries-old Italian violins are reputed to be the best ever made. Scientists tested that. Their data now show new instruments can sound at least as good — and sometimes better.
By Sid Perkins -
ClimateHotspots found for lightning’s superbolts
A nine-year survey reveals where and when the most energetic lightning strikes — and it’s not what scientists expected.
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ChemistryScientists look to hack photosynthesis for a ‘greener’ planet
Photosynthesis turns sunlight into energy for plants. Scientists want to know more about it, imitate it — even improve it.