What is an LED light?

Answer An LED light has a light-emitting diode as its light source. The diode---a device with a positive terminal, a negative terminal and two different semiconductor materials---produces light through th... Read More »

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Which has the greatest energy, a photon of infrared light, visible light or ultraviolet light?

Einstein's equation for the photoelectric effect, E = hf (where E is energy of a photon, h represents Planck's constant and f is the photon's frequency), indicates that the energy of a photon is di... Read More »

How do I light a pilot light on a gas hot water heater when the pilot light area is sealed, and the...?

for safety purposes because you are not familiar with doing the re- lighting, you can call your local fire dept and they will come out for Free to re-light the water heater. They will probably comm... Read More »

Is it normal to have very light brown-pink spotting with light cramps two weeks after your period?

Answer No this isn't normal. It sounds like implantation bleeding. See your doctor for a pregnancy blood test now or wait 2 weeks and do a home pregnancy test.

Which plant will grow faster the one in the Sun in a dark closet in partial light or in artificial light?

In a dark closet because the plant will want to find sunlight so it grows upwards quickly to try and find the sunlight