Ready to unleash your inner engineer? This DIY tutorial shows you how to make a powerful catapult or slingshot using just ...

Looking for a simple yet effective bamboo shooter that anyone can make? This step-by-step guide walks you through the easiest way to craft a bamboo catapult using basic materials. Ideal for ...

Explore simple machines and create a catapult using these simple materials: popsicle sticks, marshmallows, spoon, and rubber bands.

Following simple step-by-step instructions, the recipient sends a small blood sample, two blood pressure readings, and a few physical measurements to Catapult’s laboratory in Dallas.