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Rice University scientists have made wood into an electrical conductor by turning its surface into graphene.Rice chemist James Tour and his colleagues used a laser to blacken a thin film pattern onto ...
How do shark teeth bite?Reciprocating saw,glue provide answers
shark teeth Reciprocating saw glue
2016/9/29
Sharks have a big reputation for their teeth.The ocean predators use their buzz saw mouths to efficiently dismantle prey, ranging from marine mammals and sea turtles to seabirds and — as Hollywood lik...