Bodies

per hour

per second

A man walks

3 miles or

4 feet

A horse trots

7 "

10 "

A horse runs

20 "

29 "

A steamboat moves

18 "

26 "

A sailing vessel moves

10 "

14 "

Slow rivers flow

3 "

4 "

Rapid rivers flow

7 "

10 "

A moderate wind blow:

7 "

10 "

A storm moves

36 "

52 "

A hurricane moves

80 "

117 "

A rifle ball moves

1,000 "

1,466 "

Sound moves

743 "

1,142 "

Light moves 192,000 miles per second.

Electricity moves 288,000 miles per second.