Centuries: 1st century BC - 1st century - 2nd century
Decades: 10s - 20s - 30s - 40s - 50s - 60s - 70s - 80s - 90s - 100s - 110s
60 61 62 63 64 65 66 67 68 69
Siginificant People
... property is that the axis of a spinning gyroscope will resist a force applied to it and will start rotating perpendicular to the force applied. This is why spinning gyr ...