Robotic Coffee Table

Let's take a look at the robotic coffee table. By placing some crumbs on the top of the table, mice are attracted to climb up the hole in its over-sized leg. The trapdoor in the centre of the table opens when sensors detect that a mouse is standing on it. The unfortunate rodent then falls into a microbial fuel cell underneath, where it gets digested and converted into energy to power the electronic parts of the table.

Since there might be hundreds of rats hiding behind the walls, we really shouldn't feel sorry for the rats rotting inside the table.

Test Your Science

1. Where does the robotic coffee table get its source of power?

Read the Young Scientists Issue 109 Level 3 on the Carnivorous Robotic Lamp.