> Light is slow, not exactly 1 foot per nanosecond but it's a reasonable mnemonic. "Admiral Grace Hopper Explains the Nanosecond" is a good illustration of thi

> Light is slow, not exactly 1 foot per nanosecond but it's a reasonable mnemonic. "Admiral Grace Hopper Explains the Nanosecond" is a good illustration of this (segment is only 2m): * https://www.youtube.com/watch?v=9eyFDBPk4Yw https://www.youtube.com/watch?v=9eyFDBPk4Yw * https://en.wikipedia.org/wiki/Grace_Hopper https://en.wikipedia.org/wiki/Grace_Hopper Full lecture: * https://www.youtube.com/watch?v=ZR0ujwlvbkQ https://www.youtube.com/watch?v=ZR0ujwlvbkQ