Using radar a scientist sends radio waves to the base of the ice and measures the return time to measure the thickness. Makers Ordovician cephalopods

Ordovician cephalopods

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Using radar a scientist sends radio waves to the base of the ice and measures the return time to measure the thickness. Makers Ordovician cephalopodsUsing radar a scientist sends radio waves to the base of the ice and measures the return time to measure the thickness. Windless Bight, Ross Ice Shelf, Ross Island, Antarctica.