4 ms·
Cliff is a wonderful, wonderful human being. He once did a series of free physics classes for middle schoolers in his garage. Learned how to measure the speed o
by jbpetersen 11y ago
Cliff is a wonderful, wonderful human being. He once did a series of free physics classes for middle schoolers in his garage. Learned how to measure the speed of light from him.
- copperx 11y agoHe emits light?