Rare copy of U.S. Constitution heading to auction
One of the few surviving first-edition copies of the U.S. Constitution is heading to auction next month. Sotheby’s pegs its value at up to $30 millio…
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3D-printed house comes to life
Most homes are built block by block, or brick by brick. But a demo house in Calverton, New York, was constructed scan by scan - its walls made using …
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