Physics
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ChemistrySmash hit: Making ‘diamond’ that’s harder than diamonds
Scientists had suspected extreme meteorite impacts might turn graphite into an unusual type of diamond. Now they’ve seen it happen — in under a nanosecond.
By Beth Geiger -
PhysicsBlack hole smashup sent out ‘yottawatts’ of power
When two black holes collided, they released a lot of energy in gravity waves. How much? How about 36 septillion yottawatts of power!
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PhysicsScientists Say: Watt
Say Watt? This is a unit used to measure the flow of energy being used.
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PlantsLess brilliant flowers still keep bees coming back
Bumblebees prefer petals that aren’t overly shimmery. This suggests plants are attuned to what insects see.
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PhysicsScrubbing bubbles: Secret to ouch-free dental cleanings?
People with sensitive teeth can find routine dental cleanings painful. But bubbles might pave way to no-touch — and pain-free — cleaning for these people.
By Ilima Loomis -
TechEggshells help hatch a new idea for packaging
Why just crack an egg? Make the shell into itty bitty bits and use them to build a more biodegradable plastic. New research shows how.
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TechGoo-oozing deicer protects surfaces
New, slime-oozing coating might someday help reduce ice and snow buildups on road signs and aircraft wings. The inspiration? The goo produced by slugs.
By Sid Perkins -
PhysicsBlowing bubbles for science
What is most important when blowing bubbles? Air speed, not the thickness of the soap film, scientists find.
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TechCool Jobs: The power of wind
Science and engineering careers explore all aspects of wind, from terrible tornadoes to aeronautics and clean energy.
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TechNew football helmets could limit brain injuries
A new design for football helmets uses three layers to absorb energy from repeated impacts. The result should be fewer athletes with brain injuries.
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PhysicsScientists Say: Potential energy
This is the energy an object has because of its position or condition.