Tips for Relieving Muscle Soreness. Use these tips the next time a workout has your muscles aching for relief. Nothing's quite as rewarding after a tough sweat session like sore musclesâexcept maybe larger, more defined muscles (but that's a story for another time). What you're feeling anywhere from 12-48 hours after a workout is something specialists refer to as DOMS, or Delayed Onset Muscle Soreness.
Thankfully, Copernicus set the record straight with his heliocentric model, and we now know that the Earth spins on its axis as it revolves around the sun. But why does our planet spin in the first place? Remember Newton's first law of motion? It states that an object remains in whatever state of motion it's in unless another force acts upon it. The Earth is rotating because it's been doing that as long as it has existed. Keep Reading Below Before there were planets in our solar system, there was a spinning, nebulous cloud of dust with our sun at the center.
You are moving because the Earth and everything in our solar system is constantly moving. Our solar system includes the Sun, nine planets and their Moons, comets and asteroids. These objects are sometimes called celestial bodies, and they are constantly moving, too. At the center of it all is the Sun. It takes the Sun 25 days to spin, or rotate, completely around. The Earth, which is the third planet from the Sun, takes 24 hours to rotate. This is what causes day and night. As the Earth rotates, it also moves, or revolves, around the Sun. The Earths path around the Sun is called its orbit. It takes the Earth one year, or 365 1/4 days, to completely orbit the Sun.