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.
We canât feel Earthâs rotation or spin because weâre all moving with it, at the same constant speed. Earth spins on its axis once in every 24-hour day. At Earthâs equator, the speed of Earthâs spin is about 1,000 miles per hour (1,600 kph). The day-night has carried you around in a grand circle under the stars every day of your life, and yet you donât feel Earth spinning. Why not?