Dutch designer plans to 3-D print a steel bridge in mid-air

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Dutch designer Joris Laarman will build a bridge in 2017 by wheeling a robot to the brink of a canal in Amsterdam. He will push an “on” button and then walk away. When he returns in two months, the Netherlands will have a new, one-of-a-kind bridge, 3-D printed in a steel arc over the waters. This isn’t some proof-of-concept, either: when it’s done, it will be as strong and as any other bridge. People will be able to walk back and forth over it for decades.

Continue reading… “Dutch designer plans to 3-D print a steel bridge in mid-air”

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Color Differences Within And Between Species Have Common Genetic Origin

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Body hair difference is more pronounced between chimpanzees and humans than within our own species.

Spend a little time people-watching at the beach and you’re bound to notice differences in the amount, thickness and color of people’s body hair. Then head to the zoo and compare people to chimps, our closest living relatives. Continue reading… “Color Differences Within And Between Species Have Common Genetic Origin”

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