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Tag Archives: Grand Canyon
Adventure and Science
What exactly is the distinction between play and work? The things some people do for recreation would seem like bloody hard work to others.I’ve spent a good part of my life climbing mountains and rafting rivers, and a good part … Continue reading
How Old is the Grand Canyon?
Controversies over wonders of the world capture the public imagination from time to time. Now some Caltech scientists have dared suggest from a new technique that measures the depth of overburden on apatite crystals that there was an older canyon … Continue reading
geosciencebigpicture 
