Engineering Design
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ChemistryFingers leave tell-tale clues about you on your phone
Analyzing chemicals on a cell phone tells researchers what the caller had been up to. That includes recent meals and where they'd been.
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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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ComputingStar 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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How not to grin and bear it
Three teen researchers who took part in this year’s Broadcom MASTERS competition seek to help those who clench and grind their teeth.
By Sid Perkins -
BrainWhat makes a pretty face?
Beautiful faces are symmetrical and average. Do we prefer them because this makes them easier for our brains to process?
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Health & MedicineImplant traps cancer cells on the move
A device implanted under the skin extended the life of mice with breast cancer. It trapped injected cancer cells before they created tumors in organs throughout the body.
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Health & MedicineSimpler way to screen for hidden hearing loss?
Many teens today walk around with undiagnosed hearing damage. But some Boston-based researchers have come up with a low-tech approach to screening these individuals so they can get help.
By Lela Nargi -
AnimalsThese young inventors had to make like a crab
This year’s top challenge for Broadcom MASTERS finalists was to design and build a robotic arm based on a crab’s arm and claw.
By Sid Perkins -
AnimalsSpeckled dino spurs debate about ancient animals’ colors
Structures found in fossil dinosaur skin may give clues to the creatures’ colors and how they lived. But not all scientists agree on how to interpret what they see.
By Meghan Rosen -
ChemistryMilking chocolate for its health benefits
Researchers figure out how to give milk chocolate the same health benefits as dark chocolate. The secret ingredient is an extract from peanut skin.
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Health & MedicineCould toothpaste give heart disease the brush-off?
Brushing with a toothpaste that dyes plaque green encourages people to remove more of it. This also lowered inflammation, which may cut someone’s risk of heart disease.