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 fast do radio waves travel? Radio waves travel at a velocity that is equal to the speed of light traveling in a vacuum, which is 186,282 miles per second. Top speed is only possible in empty space; passing through transparent liquids and solids like crystals cause waves to bend, which slows down their speed. Full Answer >.