Radio waves are a form of electromagnetic radiation – the same phenomenon as light, X-rays and … Radio wavesRead more
Author: Nikolay
Everage cloud’s weight
Researchers have calculated that the average cumulus cloud you see on a sunny day – weighs … Everage cloud’s weightRead more
Water on Earth
97percent of the water on Earth is salt water, water found in lakes, rivers, streams, ponds, … Water on EarthRead more
Earth’s average orbital speed
Earth’s average orbital speed is about 30 kilometers per second. In other units, that’s about 19 … Earth’s average orbital speedRead more
The Moon
Every year, the Moon moves 3,8 cm further away from us. Because of this, the Earth … The MoonRead more