Uncategorized
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Health & MedicineTeachers make time for Ebola and other current events
Science teachers want to cover current science and health topics, but struggle to find good resources for their students.
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BrainHeaded to a concert this summer? Pack earplugs
Wearing earplugs at concerts and other loud events may prevent hearing loss and permanent ear damage, a new study suggests.
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BrainExplainer: When loud becomes dangerous
Many people don’t realize that sounds — even those of the music they love — can prove harmful when they get too loud.
By Janet Raloff -
LifeScientists Say: Vector
Vectors are used to transfer things. Sometimes the transferred item is a disease, but scientists can also use vectors to insert helpful genes.
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ChemistryKey sugar for life on Earth could have formed in space
Ribose, a sugar in RNA, may have formed in space and then rained down on a young Earth, a new study suggests.
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ChemistryDwarf galaxy spawned heavy elements
A study of nine stars in the dwarf galaxy Reticulum II found heavy elements. They had been produced after a violent stellar event sparked a chemical chain reaction.
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AnimalsPollen can become bee ‘junk food’ as CO2 rises
Increasing levels of the greenhouse gas are changing diminishing the food value of pollen, bees’ only source of protein.
By Susan Milius -
Health & MedicineTeen vaping soars past cigarette use
Most U.S. states ban sales of e-cigarette products to kids. Still, new data show that it’s no sweat for tweens and teens to buy them online.
By Janet Raloff -
EcosystemsThis microbe thinks plastic is dinner
The bacterium Ideonella sakaiensis chows down on one type of polluting plastics. That means it could become helpful in cleaning up environmental waste.
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Materials ScienceHow to make window ‘glass’ from wood
Scientists have come up with a way to make wood transparent. The new material could be used in everything from windows to packaging.
By Sid Perkins -
Health & MedicineTeen girls start drinking earlier than boys
Teen girls now tend to take up drinking alcohol earlier than do boys, data show. Drinking-prevention programs, however, tend to focus on boys.
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PhysicsScientists Say: Frequency
The distance between one wave peak and another is wavelength. But how fast those peaks are moving along is frequency.