spindown
reduction drive
deceleration
retardation
underclocking
backspin
reduction gear
damper
torque converter
gear
geared wheel
cogwheel
gear wheel
aerobraking
spooldown
curl
spinning
meno mosso
rattleback
time dilation
slingshot effect
yo-yo despin
Lorentz-Fitzgerald contraction
rate limiter
pseudospinor
groundspeed
Bubnoff unit
pseudospintronics
closing speed
spinlessness
nonrelativistic mechanics
magnetoelectronics
retrorocket
bat
precession
button
whirl
Oberth effect
law of areas
speedlessness
spin
delta-v
law of equal areas
spin control
twist
uniformly decelerated motion
Kepler's second law
decelerated motion
twisting
twirl