Space physics: Video playlist

Day, night and seasons

To play this video you need to enable JavaScript in your browser.

This video can not be played

Description

This video uses a simple demonstration to explain why we have day and night and why days are longer in the summer and shorter in the winter in the northern hemisphere.

Space physics

Now playing video 2 of 2

What are days, seasons and years? Video
1 of 2
Now playing. Day, night and seasons. Video
2 of 2