The cat sensor does the work for you and keeps your cat safe. 1  With the Litter-Robot, maintenance is easy and infrequent. We recommend emptying the waste drawer once every 7-10 days for a single cat household, and more often if you have multiple cats.
It's simple. Radio waves travel unbelievably fastâat the speed of light (300,000 km or 186,000 miles per second). Analog radio. Ocean waves carry energy by making the water move up and down. In much the same way, radio waves carry energy as an invisible, up-and-down movement of electricity and magnetism.
How long will it take for a radio wave to travel 100km if the speed of radio waves is 3x108metres per second? If the speed of radio waves, also known as the speed of light, is 3x108 metres per second, then it is also 3.333 nanoseconds per meter.(Simply invert) As such, the wave would â¦ take 333.3 microseconds to traverse 100 kilometres.ow long does it take a radio message to travel to the moon from the earth? It's roughly 1-1.5 seconds. Light (and radio) travel at 186,000 miles per second, and the moon is usually about 230,000 miles away.