Hear it before you see it: The Doppler Effect

One way to give the effect of a moving object is to use sound. A moving object making a particular sound, such as an ambulance with a blaring siren, can seem to be making sounds with two different pitches. This is because of the way sound waves work. As a moving object approaches making sounds, […]

Real-Life Rocket

The 1995 film Apollo 13 is a historically-accurate recounting of the problems encountered by astronauts and engineers during the 1970 USA space mission of the same name. Although I didn’t see the launch of the Apollo 13 on TV, I did watch NASA’s live broadcast of the 1969 launch of the Apollo 11 (along with millions of other Americans […]