Sunday, July 12, 2009
0 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
Postagens populares
-
"Explanation: What would it look like to travel across the known universe? To help humanity visualize this, the American Museum of Nat...
-
Physics demonstration of Pascal principle using plastic bottles
-
Ok, now I'm gonna tell you how to build a cool science experiment. It's called the balloon that doesn't pop, or if you would ...
-
Here we have another example of science experiments that uses surface tension to works. Spread peppers in a plate full of water as the...
-
"A single seed crystal was added to the saturated sodium Acetate solution while at 30C. Omnidirectional needle-like crystals radiated ...
-
Flutter Effect is a self-feeding mechanism in which aerodynamic forces on a object (This case an airplane wing) are coupled with the natura...
-
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...
-
What this video shows seems a magic trick but is pure science! Baking soda (sodium bicarbonate) when is mixed up with vinegar (acetic acid...
-
The smoke inside the bottle falls becouse it is cold. Otherwise it ascend with the warm air as we always see.
-
"This activity models how tensional forces can cause fractures in rocks, sometimes creating rift valleys" From description of yo...
