Front

Why are we watching Spinal Tap?

Back

Illustrates the importance of standardized units of measurement (18” and 18’ are quite different).

Front

What is Stonehenge's significance in astronomy?

Back

Recent studies suggest Stonehenge may have been a very intricate calendar, only possible because our universe follows predictable laws.

Front

What is Ockham’s Razor in the context of Stonehenge?

Back

Scientists cannot disprove Stonehenge was built by ancient aliens, but Ockham’s Razor suggests simpler explanations are preferable.

Front

What is Archeoastronomy?

Back

The study of the connection between the construction of ancient monuments and celestial events.

Front

What are Medicine Wheels?

Back

Structures in the mountains of western USA and Canada that identify celestial events occurring in the summer.

Front

Why study Stonehenge and stars before solar system chapters?

Back

Understanding basic mechanics and physics was motivated by understanding celestial bodies.

Front

Define Mechanics in ancient times.

Back

The branch of science dealing with the motion of material objects, speculated by philosophers.

Front

What are Speed, Velocity, and Acceleration?

Back

Speed: distance/time. Velocity: speed with direction. Acceleration: rate of change of velocity.

Front

What is the formula for Velocity?

Back

V = d/t, measured in meters per second (m/s).

Front

What is the formula for Acceleration?

Back

A = (vf - vi)/t, measured in meters per second squared (m/s²).