It takes:
0.05 seconds for a human muscle to respond to stimulus.
0.06 seconds for a vehicle’s air bag to fully inflate.
.2 seconds for the International Space Station to travel one mile.
.46 seconds for a 90-mph fastball to reach home plate.
One second for a humming bird’s wings to beat 70 times.
1.25 seconds for light to travel from the moon to earth.
Four seconds for three million gallons of water to flow over Niagara Falls.
Twenty seconds for a fast talker to say 100 words.
