Halley’s Comet and the Lesson of Its Return
The article explains Halley’s Comet, its 76 year period as calculated by Edmund Halley using Newtonian laws, and its 1758 return. It notes past bright comets and describes comet structure with a nucleus and a tail always pointing away from the sun as the comet nears perihelion.
MENTIONED IN THIS ARTICLE
Halley
Edmund Halley
Issac Newton
Through the Locking Glass Science For You stunt
A mirror based puzzle explains why tracing a circle behind a paper is hard. The mirror image moves toward you as you push the pencil away, confusing motor action with sight. With practice one can coordinate movements, similar to tying a necktie or applying makeup. An additional stunt prints Bob Brown to show mirror perception.
MENTIONED IN THIS ARTICLE
Bob Brown
Bob
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