Digging on a private site turned into a shocking discovery. Beneath the soil lay an ancient Native American spear, preserved as a chilling reminder of history.

A handful of paper clips are forged into a large razor sharp knife. From forging and grinding to crafting the handle and testing the edge this build shows the full transformation.

Parachutes rarely get the credit they deserve. They transform deadly freefall into a gentle descent, saving lives in war zones, rescue missions, and even humanitarian aid drops. But they come with a ...

Parachutes inspired by Japanese paper cutting unfurl automatically and fall more predictably than standard parachutes.

By: Fabrizio Dell'Acqua, Edward McFowland III, Ethan Mollick, Hila Lifshitz-Assaf, Katherine C. Kellogg, Saran Rajendran, Lisa Krayer, François Candelon and Karim R. Lakhani ...