Peltier effect modules, also known as solid-state heat pumps, used to be exotic tech but are now quite common. They are actually the reverse of the Kelvin effect. Thermocouples exploit the Kelvin ...

Peltier modules are a great solution for moving ... Effectively they are a short-distance heat pump, so you need to dump the hot-side heat elsewhere. The method [Advanced Tinkering] chose here ...

With Peltier modules that draw heat away, a heatsink, and a Lego-powered fan, we’re building a gadget that cools drinks fast.