Today we talked about tides and black holes. If you missed the notes, the Wikipedia acticle on tides is quite good. For our class, we care about what causes the basic tides, spring tides, and neap tides. You will not be held responsible for all the details in the Wikipeida article...although the whole subject is quite fascinating.
Here is a video we watched of the very dramatic tides in the Bay Of Fundy.
Here is a video of the amazing Neil DeGrasse Tyson explaining black holes. My pictures are backwards from his explanation - I drew a person diving in, while he talks about a person going in feet first.
Homework: Tides
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