Why Does E=mc2?Da Capo Press / 2009-07-14出版 想读 在读 读过 豆瓣评分TM打开App评分 9.2 35人评分短评 打开App写短评 Fa2014-05-11 23:11:40 文科生都可以读懂,真难得。中间那一段,用pythagoras theorem推出四维spacetime中的distance的重要参数就是光速,确实令人... 展开 1...
把手按在桌子上,你能感到桌子的抗拒,这种抗拒力本质上和相同磁极互相排斥如出一辙;一辆半光速行驶的列车,时间到底变慢了多少?只要勾股定理便可推算出来。都说运动是相对的而为啥光速偏偏绝对?爱因斯坦想不通,相对论便应此纠结而生。如果在一个无限远的地平面上,同时释放一个铁球和一束与地面平行的光,铁球会和光...
这本书内容确实是不错啊,没用很多的公式来推导为什么E=mc2,但是对于一个对理科一窍不通甚至于自我屏蔽的人来说,这本书仍然不太好懂懂。 于是这本书吸引我的地方就和里面的公式和方程无关了,这本书让我产生了对宇宙的无限的思考,人类对自然现象以及宇宙时空的探索的欲望是... (展开) ...
Good times! Q: Why does relativistic length contraction (Lorentz contraction) happen? Pingback:Q: Why does E=MC2 ? | Ask a Mathematician / Ask a Physicist Pingback:Q: Why does going fast increase an object’s mass? | Ask a Mathematician / Ask a Physicist Pingback:Q: How do velocities ...
(3) for the photon were extended to solid matter and equated with Einstein's statement, E = mc2, (4) of the equivalence of mass and energy, a massive particle could be associated in its rest frame with a characteristic frequency, 0 = mc2 , ℏ where m and ℏ are respectively the ...
Physicists like to use the term “Elegant” to describe the greatest discoveries such as Newton’s gravity, Relativity both Special (E = MC2) and General and even Heisenberg’s microscope mind experiment in quantum. They are called that because they are simple (for them) explanations of very ...
Note that even this process of altering examples normally has starting points that are in some sense roughly in the right area. In the boxed ‘emhyr’ example I started with a poem, not a mathematical equation. It would be harder to transform E=mc2 into an emhyr! However, when things g...
A few decades later and armed withEinstein’sfamous E = mc2, which confirmed anything that has mass must have an equivalent amount of energy, 1920s British astronomers proposed that the sun was actually converting its mass into energy. However, instead of a furnace that converts wood and coal...
Yet a supply from nuclear fusion could provide massive amounts of energy from a very small footprint. With the E=mc2 formula revealing the possibilities of it, and our already understood knowledge of the scale of difference between energy production from nuclear fission shown in theatomic bombto...