The Roman empire's onager catapult used torsion—twisting an object, in this case a restraining rope or spring, by applying torque—to build tension in the arm and generate a powerful swing.

Catapult Materials Popular Science The catapult perspective drawing shows the quantity and dimensions of the wooden pieces I used to build the catapult’s frame.

In his new book Defending Your Castle, William Gurstelle shows you how to build catapults, crossbows and all the other devices you need to keep the invading hordes at bay.

With a dozen wooden dowels, some rubber bands, a cup or spoon, and ping-pong balls, you can build a DIY catapult for tabletop warfare.

OK, let’s play. You can build your own tossing game from newspaper and tape. Here’s how to make a catapult launcher and a basket target.

Build a fun catapult using an Altoids tin with this guide. Read Joe Biden doctor's full statement on refusing to testify Anne Hathaway ‘Broke Down' on A24's ‘Mother Mary' Set and Said: ‘I ...

Ready, aim, fire! Learn about physics as you build and modify your own catapult--and launch cotton balls through the air! How far can you make your soft missiles soar?

Kids can put their problem-solving and engineering skills to the test and learn how to build a candy catapult today at the Kids Space at the Cincinnati Museum Center.

New growth in Lakeland and one non-profit is helping not just bring entrepreneurs to Lakeland but also helping them succeed.

Catapult Health's revenue was $30 million over the 12 months ended in September 2024. That's a drop in the bucket for a company like Teladoc, which recorded $2.6 billion in revenue in 2024.

The more advanced a catapult system is, the more planes can be launched from an aircraft carrier.