Additional Material
|
Fingernails grow |
1.2 × 10–9 m/s (2.6 × 10–9 mph) |
|
Moon receding from Earth |
1.3 × 10–9 m/s (about 1 nm/s) |
|
Average growth rate of child |
1.8 × 10–9 m/s (4 × 10–9 mph) |
|
Growth rate of bamboo |
6 × 10–7 m/s (1.3 × 10–6 mph) |
|
Garden snail |
0.002 m/s (0.004 mph) |
|
Audiocassette tape speed |
0.0476 m/s (0.106 mph) |
|
One knot (nautical mile per hour) |
1.852 km/h (1.151 mph) |
|
Average walking speed |
1.2 m/s (2.5 mph) |
|
World record swimming |
2.3 m/s (5.2 mph) |
|
Comfortable bicycling speed |
6 m/s (13 mph) |
|
Fastest human running |
12 m/s (27 mph) |
|
Horse in gallop |
13 m/s (30 mph) |
|
Object falling 10 m |
14 m/s (31 mph) |
|
Sky-diver in midflight |
54 m/s (120 mph) |
|
Sneeze |
up to 46 m/s (104 mph) |
|
Golf ball driven off tee, arrow fired from longbow |
60 m/s (130 mph) |
|
Stock car |
90 m/s (200 mph) |
|
Wind in tornado |
112 m/s (250 mph) |
|
Fastest train with wheels (non-maglev) |
160 m/s (357 mph) |
|
.22 long-range centerfire bullet |
400 m/s (1,300 ft/sec, or 895 mph) |
|
Earth’s rotation at equator |
464 m/s (1,038 mph) |
|
SR-71 Blackbird, fastest jet aircraft |
981 m/s (2,194 mph) |
|
North American X-15 rocket-powered aircraft |
2,020 m/s (4,519 mph) |
|
Satellite in geosynchronous orbit |
3,100 m/s (6,900 mph) |
|
Space shuttle, and International Space Station in orbit |
7,743 m/s (17,320 mph) |
|
Apollo 10 manned spacecraft, return trip from moon |
11 km/s (24,791 mph) |
|
Earth orbits the sun |
30 km/s (66,620 mph) |
|
Helios space probe (orbiting the sun) |
70.22 km/s (157,078 mph) |
|
Solar system orbiting the Milky Way |
216 km/s (483,000 mph) |
|
Milky Way moving through space (relative to cosmic background radiation) |
550 km/s (1.2 million mph) |
|
Rotation of fast neutron star |
38 Mm/s |
|
Light in a vacuum |
299,792,458 m/s (186,282 mi/sec) |