Physics
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AnimalsWhales echolocate with big clicks and tiny amounts of air
Toothed whales may echolocate using bits of air that they recycle inside their heads to conserve both air and energy.
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PhysicsDust-shrouded monster is a snapshot from the early universe
Scientists have spotted a massive galaxy from the early universe shrouded in dust. It turned up in a small survey by the ALMA radio telescopes in Chile.
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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 -
PhysicsExplainer: Understanding meteors and meteor showers
Meteors regularly enter Earth’s atmosphere. Most ‘shooting stars’ pose few risks to life on the ground, but the rare big ones can be lethal.
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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 -
PhysicsMagnetic fields may supercharge the sun’s release of heat
Astronomers have linked flame-like tendrils rising from the sun to changes in its magnetic fields. This may be one step toward understanding why the sun’s corona is so very, very hot.
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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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LifeA new spin on lab-grown meat
A technique inspired by how cotton candy is spun could help produce lab-grown meat at a lower cost and on a bigger scale.
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AnimalsWeird little fish inspires the development of super-grippers
Suction-cup designers were inspired by the rock-grabbing tricks of the aptly named clingfish.
By Sid Perkins -
PhysicsScientists Say: Power
This word describes the rate at which energy is delivered or used to do work, along with related ideas, such as ways of making electricity.
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PhysicsFrozen’s ice queen commands ice and snow — maybe we can too
In the Frozen movies, Elsa magically manipulates snow and ice. But scientists, too, make snowflakes. If they reinforce it, architects can build with ice and snow.
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PhysicsFirst heavy element identified from a neutron-star collision
Scientists have at last witnessed newborn strontium in the afterglow of a neutron-star smashup. It confirms what they had suspected about how many massive stars are created.