If you want an easy project to complete in a day or so, or something to introduce kids to the world of robots and electronics, make this light-following robot your weekend project.

Build your own DIY Boat-Bot — a floating robot that sails across water using a small motor and battery! 🚤🤖 This fun and easy science project is perfect for kids, school exhibitions, or ...

All you need is a 9-volt battery hooked up to some kind of resistor— (one DIYer used a Radio Shack Electronics Learning Lab)—and electrodes, which can be purchased on eBay.

In this video captured at a PackExpo, a two-headed robot is tasked with lining up 9-volt batteries coming down a factory line into groups of four, and then moving those four-packs into a line ...