Motion and Stability: Forces and Interactions
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PhysicsExplainer: How batteries and capacitors differ
Both batteries and capacitors can power electronic devices. Each, however, has different properties which may provide benefits — or limitations.
By Sid Perkins -
PhysicsWeird physics warps nearby star’s light
Scientists have observed a bizarre effect of quantum physics in light coming from a nearby neutron star.
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MathCool Jobs: Motion by the numbers
What do car crash testers, video game creators and scientists who study athletic performance have in common? All use geometry in their cool jobs.
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Materials Science3-D printers offer better way to make some magnets
3-D printers produced magnets as strong as conventional ones with less material wasted.
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TechStar Trek technology becomes more science than fiction
On Star Trek, the characters used devices that seemed wild, futuristic and impossible. But those sci-fi gadgets are inspiring real-world, useful inventions.
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PhysicsFalling through Earth might be a long and fruitless trip
A classic physics problem asks what would happen if you plunged through Earth’s center. A new study contends you could never make it to the other side.
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PhysicsWhy the knuckleball takes such a knucklehead path
They used to say it was how the seams interacted with the air. The new explanation is different. Scientists say its due to a ”drag crisis.”
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TechClear, stretchy sensor could lead to wearable electronics
Researchers have combined plastics and metal to make a transparent, stretchable sensor. It could soon find use in touchscreens, wearable electronics and more.
By Sid Perkins -
AnimalsSnout goo may help sharks sense prey
Scientists may be one step closer to understanding how sharks sense their prey. Pores on their snout and face are lined with a gel that may help relay electrical currents created by prey’s movements.
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PlanetsJuno’s knocking on Jupiter’s door
The Juno spacecraft will peer into Jupiter’s clouds and fly in close to its monstrous auroras.
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ClimateThis planet’s lightning storms are like nothing on Earth
Radio waves from a faraway exoplanet could signal intense lightning storms there.
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AnimalsThe shocking electric eel!
Electric eels are fascinating animals. Their powerful zaps can act like a radar system, trick fish into revealing their location and then freeze their prey’s movements.
By Roberta Kwok