the.com/speed
the thing you only feel when something else stands still nearby
means How fast something moves or happens — the rate at which distance is covered or change occurs over time.
from From Old English 'spēd,' which first meant success, prosperity, or good fortune — to speed someone was to help them thrive, a sense that survives in the old blessing 'God speed.' Only later did the word shift from prospering toward the swiftness that brings success, and finally to pure velocity. A cousin of Dutch 'spoed' and Old High German 'spuot,' likely from a Proto-Germanic root tied to thriving and abundance.
- light limit
- 299,792 km per second, the universe's hard ceiling
- relativity
- move fast enough, time literally slows for you
- reaction gap
- humans need 200ms to even start braking
- peregrine falcon
- dives at over 380 km/h, fastest animal alive
- no absolute
- speed only exists relative to something else
felix baumgartner freefall — 1357.6 km/h during red bull stratos jump october 2012
parker solar probe spacecraft — 586 km/s closest approach to sun, fastest object ever built