Tuesday, August 11, 2009
Leidenfrost Effect: putting the finger inside molten lead
This video show the physical principle that allows put the finger inside a molten lead without burn it.
The humidity of ours skin evaporates and the molten lead do not touch the finger.
The same happens with water drops in contact with a very hot frying pan . They don’t evaporate immediately because a vapor layer protects the drop from the heat.
The humidity of ours skin evaporates and the molten lead do not touch the finger.
The same happens with water drops in contact with a very hot frying pan . They don’t evaporate immediately because a vapor layer protects the drop from the heat.
Subscribe to:
Posts (Atom)
Marcadores
Postagens populares
-
Privacy Policy for http://sciencevideosblog.blogspot.com/ The privacy of our visitors to http://sciencevideosblog.blogspot.com is importan...
-
In this video we can see the three primary colors come together and forming white light. Paul Hewitt also shows how to produce colored shad...
-
Paul hewitt demos, using humor, inertia and physics pulling a tablecloth out from under a table full of plates and glasses and not moving o...
-
Universal indicator is used to find out the approximated PH of some substance. This video shows at first a ph 14. As some acid is added the...
-
] Sodium dichromate is a orange solid. During its decomposition N2 , water and chrome oxide are liberated. The total volume increase in abo...
-
"A single seed crystal was added to the saturated sodium Acetate solution while at 30C. Omnidirectional needle-like crystals radiated ...
-
This video shows a pumpkins cannon. It uses compressed air to accelerates the pumpkins through out a long pipe. As bigger the pipe, more ...
-
Physics demonstration of Pascal principle using plastic bottles
-
Chladini patterns
-
Very very nice optical illusions!