Sick of watching these documentaries that don't even remotely explain some things in detail. Like... How is bone almost as strong as steel? Some thin steel rods lying around my house are very hard to bend slightly, but my stainless steel scissors in the vice can take a mild hit from a flat side of an axe a few times before snapping, but its thin steel. How do they do this comparison? Same thickness of steel & bone? Also it said the Achilles Tendon can hold the weight of a truck up before snapping. Again it didn't even explain anything. just curious thanks.