Tuesday, February 2, 2010
Flutter Effect is a self-feeding mechanism in which aerodynamic forces on a object (This case an airplane wing) are coupled with the natural mode of vibration of this object to produce a periodic and, sometimes, destructive motion.
Flutter Effect - Dynamic Aeroelasticity
Flutter Effect is a self-feeding mechanism in which aerodynamic forces on a object (This case an airplane wing) are coupled with the natural mode of vibration of this object to produce a periodic and, sometimes, destructive motion.
Thursday, January 28, 2010
This video shows a pumpkins cannon. It uses compressed air to accelerates the pumpkins through out a long pipe. As bigger the pipe, more time the pumpkin is accelerated, so higher is the inicial velocity. At a 45 degress angle the pumpkin reach the maximum horizontal distance.
Lets pump...pumpkins
This video shows a pumpkins cannon. It uses compressed air to accelerates the pumpkins through out a long pipe. As bigger the pipe, more time the pumpkin is accelerated, so higher is the inicial velocity. At a 45 degress angle the pumpkin reach the maximum horizontal distance.
Wednesday, January 27, 2010
Nitrocellulose, an explosive similar to nitroglicerin but, instead of glicerin, it has cellulosis on its composition. It is not sensitive to impact just to heat.
It burns so fast that there is no time to exchange heat with the hand
This tick uses the pascal principle to break up the bottom of a bottle! You'll need some practice to do that. Warning, the broken glass can be very dangerous!
Nitrocellulose - the gun cotton
Nitrocellulose, an explosive similar to nitroglicerin but, instead of glicerin, it has cellulosis on its composition. It is not sensitive to impact just to heat.
It burns so fast that there is no time to exchange heat with the hand
Pascal Principle bracks the bottle
This tick uses the pascal principle to break up the bottom of a bottle! You'll need some practice to do that. Warning, the broken glass can be very dangerous!
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