On Earth, objects have a tendency to fall down and slow down, thanks to the ubiquitous forces of gravity and friction. As a result, the concept of inertia is obscured from unsuspecting earthlings.

Now watch this video of NASA astronauts living the “high life” in the International Space Station orbitting high above the Earth.

Question

See how many times you can see evidences of Newton’s 1st Law.

Answer

00:17
The luggages (and the lady) remain moving along a straight lines, until they are “forced” to change their directions.

00:34
The shaver remains at rest, hovering at mid air, unless it is “forced” to move.

01:26
The astronauts remain gliding through air at constant speed since there is no external forces to change their motion.

02:01
The food pieces (pizza slices?) remain in straight line motion at constant speed, until some external forces cause a change in their velocities. The orange ball, in particular, was seen travelling along a perfect straight line, until it bounces off the camera lens.

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