If you know about Peltier modules, a solid-state fridge seems like an easy project. Pump 12V into the module, include a heat sink and a fan. Then you are done, right? According to [Peltier Power], ...

The OptoTEC ® MSX Series delivers 100 to 120°C temperature differential (ΔT) in a vacuum environment with micro cold-side footprints down to 2.0 x 4.0mm and overall heights as low as 3.3mm (2-stage) ...

Functions and modules for creating hooks and hook like parts. At the moment only one part is supported, a ring hook. Form a part that attaches a loop hook with a cylindrical hole a specified distance ...

The term "involute" refers to the shape of the teeth: the curves of the teeth are involutes of circles, which are curves that optimize gear performance. Figure 1.1.2: The three marked circles are key ...