Snow Globe With Real Snow
To recreate a winter wonderland in a globe, Hodgins added a series of stacked thermoelectric coolers that use the Peltier effect to create a temperature difference between two different materials when an electric current is applied. One side gets warm while the other gets cold, and by stacking several of the coolers together, a temperature difference of 140°F (60°C) was created, which was more than sufficient to cause the water vapor in the globe to… Read More »Snow Globe With Real Snow