Cut two small notches into four of your craft sticks (A) as shown Cut two small notches into one of your craft sticks (B) as shown Using your hot melt glue gun, glue one of your craft sticks to one of ...

In his spare time—which was presumably limited—Leonardo da Vinci was fond of drawing plans for contraptions and weaponry, most of which were never actually built. But with a few common items, it’s ...

Introduction Catapults were mighty handy for pirates in the golden age of piracy (during the 17th century). And medieval knights used them centuries earlier for taking down massive castle walls. Even ...