The Blog of Phyz

Paul explains how the classic ballistic-pendulum problem cannot be solved with energy conservation alone. Hewitt-Drew-it! PHYSICS 32. Ball...

Nathan Shields, Washington's 2011 PAEMST awardee in mathematics , made a nice video explaining the consequences of the nature of the num...

Climate science deniers trot out well-worn, discredited warhorses when anyone is willing to listen. "Warming isn't happening!...

Register.com's Premium (paid for) Web Site Forwarding usually works. But since it doesn't always work, I've changed the link in...

In this screencast, Paul extends the block of ice on a ramp to a bead sliding down a wire, to the motion of acrobats Ari, Bari, and their do...

In this screencast, Paul enlists Nellie Newton to illustrate the work-energy theorem to solve a motion problem. Hewitt-Drew-it! PHYSICS 30...

In this screencast, Paul derives kinetic energy from Newton's second law, and illustrates energy transfers for a block of sliding ice. ...

Exploratorium guru, Paul Doherty , sent this to the PTSOS Yahoo Group this morning. Enjoy! Here is some info I've scraped together o...

In this screencast, Paul illustrates work and potential energy via a barbell and other vertical lifts, and the energy states of a simple pen...

In this screencast, Paul explains two ways that Freddy the Frog slows a horizontally-moving skateboard by vertically falling on it. Hewitt...