For the current testing, an injection is made into the clear fluid in the center of the eye, and the virus finds the correct part of the retina to treat. If the treatment is found to work and approved for use, for some people color blindness could be reduced or cured with a single visit to the ophthalmologist.
Why does it take so long for the radio waves to travel through space? Actually, radio waves travel very quickly through space. Radio waves are a kind of electromagnetic radiation, and thus they move at the speed of light. The speed of light is a little less than 300,000 km per second. At that speed, a beam of light could go around the Earth at the equator more then 7 times in a second. The reason that it takes so long for radio messages to travel in space is that space is mind-bogglingly big. The distances to be traveled are so great that even light or radio waves take a while getting there.
As the speed per second of radio waves in a vacuum is about 300,000 km (about 3Ã10 [m/sec]), at 433 MHz the wave length Î» is. < Click to move to the calculation window >. There is a close relationship between the wave length of the radio wave and the characteristics of the antenna.