The role of bubbles in penguin survival
Ueli Gegenschatz takes everything we know about aerodynamics and puts it all into a series of brilliant extreme sports experiences in the pursuit of his dream of human flight. You can view this video and think about lift, drag, thrust, and weight, but chances are you’ll be too busy wishing you were there with him! […]
In 1644, Evangelista Toricelli wrote, “We live submerged at the bottom of an ocean of air.” We don’t fee the force of the pressure of this fluid any more than aquatic creatures feel the force of the water on all sides. Why? Because there is a uniformity of pressure in both cases; gravity exerts pressure on all sides.