Physics
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PhysicsScience reveals the reasons behind painful paper cuts
Some types of paper are more likely to cause paper cuts. It’s the paper’s thickness and slicing angle that matter, physicists conclude.
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SpaceScientists Say: Kugelblitz
A black hole made of pure light —or kugelblitz — may be possible, at least in theory. But in practice: impossible.
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PhysicsExperiment: Making music with bottles
In this study, we investigate how the volume of air inside a bottle affects the pitch of the musical notes it can create.
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PhysicsScientists Say: Magnetosphere
This magnetic field encapsulates our planet, sheltering us from damaging energetic threats posed by the cosmos and our own sun.
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SpaceScientists Say: Cosmic rays
These energy-packed particles come to us from the farthest reaches of outer space.
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ChemistryThe periodic table might soon have a new element
A new technique could be used to make the undiscovered element 120.
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TechLasers help put the cork on spilled oil
Treating cork with lasers made the material able to quickly sponge up oil while repelling water, scientists in China and Israel found.
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Materials ScienceScientists Say: Goldene
Making this metallic, two-dimensional (2-D) material is difficult — but super-thin sheets of gold could have uses in electronics and chemistry.
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Science & SocietyScientists Say: Thought experiment
Thinking through imaginary, sometimes absurd, scenarios can catalyze new ways of thinking.
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TechLaser-based tech can identify illegal elephant ivory
Most elephant ivory is illegal to sell. Ivory from extinct mammoths isn’t. They look similar, but lasers can tell the difference to help catch poachers.
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Materials ScienceScientists Say: Superconductor
At cold enough temperatures, these materials can conduct electricity with no resistance.
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PhysicsForget moon walking, lunar visitors. Try horizontal running
Researchers took over the Wall of Death, an amusement park attraction, to test out how astronauts might keep their strength up on the moon.
By Meghan Rosen