But if it moves at 90 percent the speed of light, its mass will double. If it moves at 10 percent the speed of light, for example, its mass will only be 0.5 percent more than normal. This only becomes noticeable when an object moves really quickly. In other words, the faster an object moves, the greater its mass. Because of this equivalence, the energy an object has due to its motion will increase its mass. One of the biggest is represented by Einstein's famous equation, E = mc², where E is energy, m is mass and c is the speed of light.Īccording to this equation, mass and energy are the same physical entity and can be changed into each other. ![]() These concepts seem deceptively simple, but they have some mind-bending implications. According to Einstein, if Superman were to chase a light beam at half the speed of light, the beam would continue to move away from him at exactly the same speed. The second said that the speed of light - about 186,000 miles per second (300,000 kilometers per second) - is constant and independent of the observer's motion or the source of light. The first stated that the same laws of physics apply equally in all constantly moving frames of reference. Two important principles underpinned his theory. In 1905, Einstein published his theory of special relativity, which put forth a startling idea: There is no preferred frame of reference. Then a German-born mathematician and physicist by the name of Albert Einstein came along and changed everything. ![]() In the early 1900s, scientists held firm to the Newtonian view of the world.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |