为爱因斯坦疯狂 Flipping for Einstein

2021年1月20日
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为爱因斯坦疯狂 Flipping for Einstein

To mark the 100th anniversary of Einstein's special theory of relativity, the Science Museum in London hosted the performance of the “Einstein Flip”, the first ever bicycle trick designed by a physicist. Ben Wallace, an 18-year-old BMX rider, succeeded on his first try.

为纪念爱因斯坦发表狭义相对论一百周年,伦敦科学博物馆主办了一场“爱因斯坦翻转”的表演,这是史上首个由物理学家设计的自行车特技。18岁的 BMX型越野单车骑手本·华莱士第一次尝试就获得了成功。

It is widely believed that Albert Einstein was riding a bicycle when he had his inspiration for the famous theory that rewrote the laws of physics and led to the development of nuclear energy.

许多人都认为爱因斯坦是在骑单车的时候灵感突发,想到了那个著名的理论,并以此而改写了物理定律,开启了核能发展的大门。

To perform the trick, Wallace started off a 1.80m ramp and completed a 360-degree backward flip in midair. He also inserted a move called the “tabletop” into the flip, which involves tilting the bike to one side and pushing against it in order to cause a spin in the opposite direction.

表演这项特技时,华莱士从1.8米高的斜坡上冲下,在空中完成360度的后空翻。他还在翻转中添加了一个“桌面展示”的动作,做法是将自行车偏侧向一边并推动它,使它朝反方向旋转。

Physicist Helen Czerski, who invented the trick, explained that it owes more to Newton than to Einstein. She used a computer to plot Wallace's motion, and was surprised to find that “Yes, it could work. Having said that, I wouldn't want to try this myself — however much I trust my physics calculations!” For his part, Wallace said knowing the trick was actually possible helped his confidence. New tricks are usually developed through painful experimentation alone.

物理学家海伦·柴斯基发明了这个招数,她解释说其实这主要应归功于牛顿而非爱因斯坦。她采用计算机设计了华莱士的动作,很意外地发现“是的,可以行得通。话虽如此,我是不会自己去试的——不论我多么相信自己的物理计算。”至于华莱士,他说事先知道这项特技可行使他信心大增。通常新特技都是来自于痛苦的实验。

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