Combine a microwave, a grape and some science, shake well and have fun! Hacked Gadget reader Bladel sent in a few links to some videos they made of a similar experiment. They placed a candle under a glass in the microwave for some similar action. So what the heck is going on in there? Grapes are chock-full of electrolyte, an ion-rich liquid (a.k.a. “grape juice”) that conducts electricity. Each grape-half serves as a reservoir of electrolyte, connected together by a thin, weakly conducting path (the skin). Microwaves cause the stray ions in the grape to travel back and forth very quickly between the two halves. As they do this, the current dumps excess energy into the skin bridge, which heats up to a high temperature and eventually bursts into flame. At this point, the traveling electrons arc through the flame and across the gap, ionizing the air to a plasma (which itself can conduct electricity) and creating the bright flashes you see.” |
January 23rd, 2007
[…] Original post by Alan Parekh Posted in Crazy Hacks […]
January 23rd, 2007
holly hell
January 23rd, 2007
Nice…..
January 23rd, 2007
在微波炉上：葡萄很生气，后果很严重
其实这个是一个化学试验 ：－）
没有读过几年书的 不懂…..
大概是葡萄被晒干电解后的…燃烧吧….类似于钾燃烧……..
在家也可以试一试的…
youtube视频
来源
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January 23rd, 2007
chinkish
January 24th, 2007
How exactly is this dangerous?
He puts in there that this could “@*%* my shit up”
But I’m a physics major and unless you put a bunch of those grapes in there at the same time and you end up melting your microwave, you shouldn’t have any problem.
What could go wrong?
February 1st, 2007
for reals! you’re a physics major? OMFG can I have your autograph?
February 4th, 2007
a freak accident will @*%* your shit up allright. stuff happens. maybe the glass is weak or brittle, bursts viontley, cracks window and all of a sudden hot plasma and bits of glass hit you in the face. not pretty no?
June 14th, 2007
Actually the grape apparently (heard this on youtube videos about grape plasma) releases toxic fumes, thats why some people put a cup/glass over top of the grape. They take the glass out, put their hand underneath, and release it outside. One grape’s fumes arn’t toxic enough to hurt you, but a bunch of those suckers will, or will harm young children (with just a few).
March 19th, 2008
its only toxic if you use a match to make plasma in the micro wave…grape gases are not toxic