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ComputingNew device identifies money by its color
Two teens have invented a gadget that can help the blind identify the value of a banknote based on its color.
By Sid Perkins -
EarthCool Jobs: Getting to know volcanoes
It’s too hot to explore the insides of a volcano. These scientists examine their lava, their low-frequency rumblings and their ‘vog’.
By Ilima Loomis -
BrainEyes offer new window into Alzheimer’s disease
The eye’s retina is distinctly different in people with Alzheimer’s disease compared to those with no signs of the malady, two teens now report finding. It could lead to earlier diagnosis of the brain disease.
By Sid Perkins -
BrainLeft brain stands guard during sleepovers
Part of the left half of the brain remains on alert while the rest of the brain and body snooze.
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ChemistryKeeping samples cool without electricity
When vaccines and blood get too warm or cold, they can become useless. Two teens invented ways to keep their temperatures just right, no matter where they are.
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AnimalsWhat medicine can learn from squid teeth
Scientists have identified what makes a squid's sucker teeth so strong. The findings may one day prove useful in medicine.
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AnimalsInsects can patch their broken ‘bones’
When insects suffer wounds, they can mend their ‘skeleton’ with a patch on the inside. This makes the leg strong again, new data show.
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LifeScientists Say: Strain
These are organisms that belong to the same species, but have definable differences.
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FossilsBaby titanosaur was a mini version of its parents
Fossils show that baby titanosaurs looked like mom and dad. They may have been active and independent from a young age.
By Meghan Rosen -
PhysicsPossibility of strange new particle surprises physicists
Last winter, physicists at the Large Hadron Collider detected hints of a particle beyond their wildest dreams. Soon they may learn if it’s real.
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Health & MedicineThe cool science of hot peppers
Why are chili peppers spicy? Why does anyone crave food that burns? Uncovering this fiery veggie’s secrets could help fight pain and obesity.
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ComputingDNA can now store images, video and other types of data
Tiny test tubes might one day replace sprawling data-storage centers, thanks to a new way to encode and retrieve information on strands of synthetic DNA.