Yellow Fang
Legendary Member
- Location
- Reading
or that God exists (which may amount to the same thing):
- The speed of light is 299,792,458 m/s, basically 300 million metres per second to a rounding error.
- The Stefan-Boltzmann constant is 5.67*10^-8 Wm^-2K^-4. That 5,6,7,8 sequence is a handy mnemonic.
- The moon is the same size as the sun in the sky. Over geological time the sun has been getting larger while the moon going farther away, so we are here just at the right time.