Sunday, July 12, 2009
Comentários
Science Experiments: Magic soap bubbles
Baking soda and vinegar are very useful in science experiments, here we have another example in which this materials are used to amaze the people!
Put some vinegar in a aquarium, latter put some baking soda. The result of reaction is sodium acetate and carbon dioxide.
The CO2 is more dense than the air, so a soap bubble will float on it as a boat float on water. The buoyancy force is equal the weight of the bubble, thus we have the equilibrium and the bubble remains on interface CO2 / Air
Put some vinegar in a aquarium, latter put some baking soda. The result of reaction is sodium acetate and carbon dioxide.
The CO2 is more dense than the air, so a soap bubble will float on it as a boat float on water. The buoyancy force is equal the weight of the bubble, thus we have the equilibrium and the bubble remains on interface CO2 / Air
0 Comentários
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...
-
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...
-
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...
-
] 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 ...
-
Chladini patterns
-
Physics demonstration of Pascal principle using plastic bottles
-
This video shows simple science tricks that can be used to amuse friends in a party, play with children or even in a science fair. I wish ...
-
This video shows a pumpkins cannon. It uses compressed air to accelerates the pumpkins through out a long pipe. As bigger the pipe, more ...