这个有趣, ZT: 科学史上的四大传说, 比如爱因斯坦小学时数学不及格

1.Einstein got bad grades in school

Um... have you heard about this guy Einstein? Famous physicist? Relativity and all that? A genius, even? I'm pretty sure little Albert could handle his business in 4th grade arithmetic. Yes, contrary to popular belief, Einstein was a top student in elementary school, getting mostly top grades on the German grading scale of 1-6, which silly Americans later assumed, backwardly, were "D"s. The idea stuck because everybody loves the idea that their poor student can go on to great things. Sorry, parents, Einstein was teaching himself calculus at age 12. Your little lip-twiddling 。。 will be working at Hardee's.

2. Thomas Edison Invented the Light Bulb

Edison was a smart mother f*er, but he didn't invent the light bulb - somebody else had already done that by the time he started fiddling with the idea. Edison did, however, invent the first light bulb that actually worked well, at the same time as another guy, Joseph Swan. Edison got to be famous for it though, because he beat Swan in ro-sham-bo, and then-slapped him.

3.Ben Franklin Discovered Electricity

Benjamin Franklin did not discover electricity when his kite was struck by lightning in 1752. In fact, electricity was already well known at the time. Instead, Franklin was trying to prove the electrical nature of lightning.

During a thunderstorm, as Franklin flew a silk kite with a metal key near the end of the string, he noticed the fibers on the line standing up as though charged. He touched the key and felt a charge from the accumulated electricity in the air, not from a lightning strike. This was enough evidence to prove his theory that lightning was electricity.

Had the kite been struck by lightning, Franklin would likely have been killed as was Professor Georg Wilhelm Richmann of St. Petersburg, Russia, when he attempted the same experiment a few months later.

4.The Great Wall of China Is Visible from the Moon

You can see a lot of things while standing on the moon, but the Great Wall of China isn't one of them. In his 1938 publication, Second Book of Marvels, Richard Halliburton stated that the Great Wall was the only human-made object visible from the moon. However, the Great Wall is only a maximum of 30 feet wide and is about the same color as its surroundings, so it's barely visible to the naked eye while orbiting Earth under ideal conditions, much less from the moon, which is about 239,000 miles away.