Physics
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Materials ScienceWant a tougher space suit? Just add liquid
Using a special liquid, engineers are designing new treatments for spacesuits so that they can better resist puncturing from tiny meteorites and other hazards.
By Marcus Woo -
PhysicsScientists Say: Laser
A laser is a device that emits a strong, narrow beam of light. “Laser” is actually an acronym, and stands for “light amplification by stimulated emission of radiation.”
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MicrobesMagnetic heating may replace surgery to cure some infections
Scientists are testing magnetic fields as a way to kill bacteria that drugs normally cannot reach — such as those on medical implants inside the body.
By Ilima Loomis -
AnimalsLasers can turn a spider’s silk into sculptures
Spider silk is strong and super-stretchy. Scientists have developed a way to sculpt that material into unusual, micro-scale shapes using lasers.
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ArchaeologyScientists detect mystery void in Great Pyramid of Giza
Using high-tech tools normally reserved for studies in particle physics, scientists have found a large, hidden void inside Egypt’s Great Pyramid of Giza.
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PhysicsAncient light may point to where the cosmos’ missing matter hides
The universe is missing some of its matter. Now astronomers may have a way to find it.
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PhysicsTeen identifies way to detect failing underground pipes
A teen researcher uses acoustics — here, pipe vibrations — to test whether buried water pipes are about to fail, and leak.
By Sid Perkins -
GeneticsOne day, your sunscreen may be made from DNA
A new approach to sunscreen could use a thin layer of DNA to protect skin cells — and hopefully prevent cancer.
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Materials ScienceYou can peel permanent marker, intact, off of glass
The surface tension of water can essentially scrape a thin film of some water-repellent material — such as permanent ink — off of glass.
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ChemistryScientists Say: Gradient
This is a word used to describe the rate that something changes over a distance or time. Examples include the strength of a smell or the steepness of a mountain.
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ChemistryU.S. Army is developing high-tech underwear
A new fabric could warm the skin of active soldiers in cold climates. At the same time, it could soak away sweat that might otherwise cause chills.
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PhysicsAstronomers finally find the cosmic source of gold and silver
After a collision between neutron stars is caught rippling spacetime, telescopes home in on where the ripples came from. The afterglow of light they found provided interesting new science.