View Photo Gallery Bill Andrews's feet are so large, he tells me, that back when he was 20 he was able to break the Southern California barefoot-waterskiing distance record the first time he put skin to water. Then he got ambitious and went for the world speed record. When the towrope broke at 80 mph, he says, "they pulled me out of the water on a stretcher." The Man Who Would Stop Time
Index to Physics Demonstration Equipment Index to Physics Notebooks Back to Physics Demonstrations' Home Page Acceleration A+0+0 "Coin and Feather" fall in an evacuated rotatable tube. A+0+5 Timed free fall: Ball drops 2 meters through electronic timing gate. A+0+10 Atwood machine: Unbalanced weights on a pulley accelerate slowly.
Click on one of the physics simulations below... you'll see them animating in real time, and be able to interact with them by dragging objects or changing parameters like gravity. Get Java software if you don't already have it. The next set of simulations are non-interactive movies.
Synchronizing Clocks previous home next PDF Michael Fowler, UVa Physics 2/29/08 Suppose we want to synchronize two clocks that are some distance apart. We could stand beside one of them and look at the other through a telescope, but we’d have to remember in that case that we are seeing the clock as it was when the light left it, and correct accordingly. Another way to be sure the clocks are synchronized, assuming they are both accurate, is to start them together.
radiation.png (PNG Image, 1134x1333 pixels)