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.
Radio waves travel at 186,282 miles per second. Divide the distance to Venus by the speed of the radio waves: 30,000,000 / 186,282 = 161 seconds 161 seconds divided by 60 to convert into minutes: 161 / 60 = 2.6 minutes On average it takes a radio wave 161 seconds (2 minutes 41 seconds) to travel from Venus to Earth.t the closest distance, Venus is about 23.7 million miles away from Earth, and radio waves, in a vacuum travel the speed of light (about 186,000 miles per second) so therefore it would take a radio wave about 127.42 seconds -- 2 minutes and 7.25 seconds to get to Venus from Earth. XpretenderX Â· 6 years ago.