HS-PS4-5
Communicate technical information about how some technological devices use the principles of wave behavior and wave interactions with matter to transmit and capture information and energy.
- Health & Medicine
Vision-ary high tech
New devices are being developed to improve, restore or preserve the vision of people with eye diseases, such as glaucoma and macular degeneration. One device is a telescopic contact lens than can be zoomed with a wink.
- Physics
Measure the width of your hair with a laser pointer
You can measure the width of a human hair with the help of a laser pointer, some math and a phenomenon called diffraction.
- Tech
Digital displays get flexible
Flexible and unbreakable digital displays could soon be for sale, thanks to a new organic transistor made from plastic.
- Physics
World’s coolest ‘clock’ is also crazy-accurate
This is the time to beat — the world’s most accurate atomic clock ever. At its heart is a ‘fountain’ of cesium atoms chilled nearly to absolute zero!
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- Tech
Cell phones on the brain
When an active cell phone is pressed against the ear, the brain gets busier.
- Tech
Electronic paper turns a page
Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.
- Tech
Cell phones and possible health hazards
Radiation from some cell phones appears to kill brain cells in rats.
