One of the perennial challenges of building robots is minimizing the size and weight of drive systems while preserving power.

Hot glue guns are pretty simple beasts: there’s an on/off switch, a heating element, and a source of current, be it battery or wired. You turn it on, and the heater starts warming up; ...

To redeem your free energy links, ensure you’re using the Android or iOS device where you have the game installed. Clicking on any of the links listed above will open up the Animals and Coins app and ...

Redeeming gifts couldn’t be easier; simply click on the link, which will take you to the Match Masters app where you can redeem your goodies. If you don’t have Match Masters, you can grab it from the ...