Not for kids to do without parent approval and appropriate equipment:
So just watch someone else do it in their microwave: http://www.youtube.com/watch?v=s9Q070Ol6jc&mode=related&search=
Why do Grapes spark in the microwave?
http://www.madsci.org/posts/archives/dec97/882909591.Ph.r.html
From Popular Science:
Grapes are full of electrolytes. Each grape-half serves as a reservoir
for it, connected by a conducting path (the skin). Microwaves cause the
stray ions in the grape to travel back and forth quickly between the
halves causing the current to dump excess energy into the skin, which
heats up to a high temperature and eventually bursts into flame. The
traveling electrons arc through the flame across the gap, ionizing the
air to a plasma creating the bright flashes you see
Just one of the experiments list on Popular Science http://www.popsci.com/popsci/index.html
http://c3po.barnesos.net/homepage/lpl/grapeplasma/
go to the home page and search 'grapes microwave'
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment