Uvas en el horno de microondas

by Andrés Borbón on 5 September, 2011

Alguna vez escuché que jamás había que calentar uvas en el horno de microondas, pero supuse que este consejo se debía a que reventarían dejando un batidillo difícil de limpiar.

Sin embargo, parece que estaba completamente equivocado, ya que las uvas en el horno de microondas tienen un comportamiento de lo más peculiar. Me pregunto a qué se deberá.

Esto entra en la categoría de: No lo intenten en casa.

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Tagged as: Ciencia, Curiosidades, Videos

Erick September 4, 2011 at 8:42 pm

estoy seguro de que muchos ignoraran la advertencia, me cuento entre ellos…

arturo_nos September 5, 2011 at 2:18 am

Hay otro videos en youtube, donde no pasa nada .. me pregunto, si se debe al color de las uvas,, al vaso que le coloco ? Alguien sabe mas al respecto ?

Alex Iván September 5, 2011 at 3:19 am

No sabía esa advertencia. No habrá estado empezandose a fermentar esa uva y por eso prendió asi?

Elrico September 5, 2011 at 4:47 am

Hahahah que interesante, lástima que sea muy alérgico a las uvas, pero le pediré a alguien que lo haga por mi, jeje.

Koy September 5, 2011 at 5:57 am

valgame dios O_O …excelente video…pero-…. como kedo la uva???

Erick Aguileta September 5, 2011 at 8:09 am

He aquí la explicación:

The experiment is simple. Take a seedless grape and slice it down its length, making sure not to cut all the way through (this part is important!), so you leave just a small amount of skin connecting the two halves. Put it face-up in a microwave, turn it on for 30 seconds, and presto! A ball of flame.

So what the heck is going on in that thing? Grapes are packed full of electrolytes, an ion-rich liquid (also known as "grape juice") that can conduct electricity. Each grape-part serves as a reservoir of electrolytes, connected together by a thin, weakly conducting path formed by the skin. Microwaves produce the energy that shove the stray ions in the grape back and forth very quickly between the two halves.

As a consequence, the current that's produced pumps excess energy into the skin bridging the grapes, heating it up to 3000 degrees and eventually bursting into flame. Meanwhile, the traveling electrons arc through the flame and across the gap, which ionizes the air around the grape creating a bright blue burning plasma (phew!).

And what about the poisonous gas tainting your roommate’s dinner? Well, he's talking about the ozone (O3) generated when the air inside the glass is ionized (think lightning storm). While not directly poisonous, ozone in high doses can cause issues with your lungs and just isn't the best thing you could breath. And the smell isn't all that appealing either.

There's also the possibility of damaging your microwave with all this grape microwaving. But keep it just under "explosive ball of flame" and you should be ok. Good luck!

-Brian

a.k.a, ReallyBrian

Reallybored.net Staff