View the list of videos below.

1) Who as Christian Huygens?

2) Why was his invention of the Pendulum Clock considered so important scientifically?

3) Compare and contract Huygens's theory of light to that of Newton his contemporary.

4) Discuss how Huygens would explain how a drop of water falling a flat water surface would create circular waves

5) Discuss how Huygens would explain how a wave can bend or diffract around an obstacle.

https://www.youtube.com/watch?v=gliLaaeZHwg

https://www.youtube.com/playlist?list=PLFE829A78F461BD20