Instead of making your own sunscreen, choose a product with an SPF of 30 or higher ... “In the studies we do have—on some natural oils, for example—research shows they provided little to no UV ...

A set of breakthroughs from scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) is ...

UV LED nail lamps are very trendy right now, allowing people to quickly wrap up their manicures at the salon or in the ...

A theoretical model for the dependence of the diode forward voltage (V/sub f/) on junction temperature (T) is developed. A new expression for dV/sub f//dT is derived that takes into account all ...

In this fascinating video, you'll learn how to make motor generator light bulbs, a captivating blend of mechanics and ...

Sun safety for the entire family Everybody needs some sun exposure to produce vitamin D (which helps calcium absorption for stronger and healthier bones). But unprotected exposure to the sun's ...

Make a truth teller for light. Turn an old CD into a spectroscope to analyze light—you may be surprised by what you see. Try pointing your CD spectroscope at the fluorescent light in your room, sunlit ...