Electric Trains of Christmas - Toy electric trains
have been identified with the Christmas season for
nearly a century. How did these miniatures from
the world of transportation become icons of the
winter holiday season? >Full
the Curator:People Too
Heavy for the Earth?
- When the earth was first formed, there were
no people inhabiting the earth. Now there are over
6 1/2 billion people on the earth I realize living
things consume the resources of earth but why has
not the weight of 6 1/2 billion people affected
the orbit or tilt of the earth? It is an incredible
amount of weight on earth that was not there before
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