Bill Nye, the Science Guy: Time-keeping Motion Machine of Science
2m 45s
rotation
time
measurement
revolution

Bill explains how we measure time and mentions some of the tools we use to measure it. He notes that time measurements, such as days, months, and years, are based on astronomical events and uses a motion machine to illustrate the Earth's revolution around the Sun and the Moon's revolution around the Earth.

0

Comments


Please sign in to write a comment.

Related Clips


inch
the imperial system
standard measurement
measurement
Has profanity
& time
rate
time
speed
distance