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Legal... mas precisava da música?
eu fazendo plasma na casa de um amigo<a href="http://www.youtube.com/v/WRpsNrUZeNc" target="_blank" class="new_win">http://www.youtube.com/v/WRpsNrUZeNc</a>
Poderia nos explicar por que isso acontece?
When something burns with a flame, electrons are torn from their atoms as the atoms rearrange to form new molecules. Usually they get re-captured by the molecules, and this is one of the reasons why flames glow -- the electrons emit light as they lose energy spiralling in from their paths free through the air to being caught in orbits in the new molecules.A microwave’s job is to set up a standing wave of electric and magnetic fields within a metal box. The electric fields alternately push and pull electrons left and right, or up and down. In a partially conducting material, the current that sloshes back and forth can heat up an object resistively. Even if the material does not conduct dc electricity at all, if it contains water molecules, their electric polarization directions flip back and forth with the field, making them jiggle and get hot.If electrons are floating around freely, even for a very short amount of time, they can be shoved far away from their point of origin by the electric field. And then shoved back. And then forwards again. As they move back and forth, they crash into air molecules in the oven, and can knock electrons in them to higher-energy orbits. Then these electrons fall back, emitting light. That’s why you have a glowing blob of plasma over your flame. This plasma is hotter than the rest of the air, and so it tends to rise up to the top of your bowl.I think they arrange the strength of the microwaves in ovens so that the back-and-forth motion of the electrons in a plasma that gets formed is not sufficient to knock other electrons free from the air molecules. If this were the case, even a small spark somewhere on a piece of food would eventually cause the whole oven to fill with plasma.
Arrimas essas citações, biscoito, acho que não precisa nem quotar o video pela terceira vez.
Eu e minha amiga esperando nossa vez para jogar tênis no Nintendo WII
Consegui tirar a minha primeira foto de relâmpago depois de semanas deixando minha câmera pegar chuva... \o/
Citação de: EduardoCFF em 30 de Outubro de 2009, 15:01:26Eu e minha amiga esperando nossa vez para jogar tênis no Nintendo WII Ta bem de amiga hein....
\o/Esse?
