STEM Alloy Low Temperature Difference Stirling Engine DIY Toy for Gift Collection Home Decor
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When nothing much is going on at work, I make a cup of tea and put this Stirling Engine on top. A couple minutes later I give the flywheel a little nudge and it starts spinning away. On a large coffee mug filled with boiling water, it will spin for about an hour and fifteen minutes. It arrived with no instructions as is to be expected but I find figuring out how something works to be part of the fun of ordering from Banggood. I figured out how to bend the supports to get the flywheel to stay on but still turn freely. A friend added some graphite lubricant to get it going really fast. The first question out of coworkers mouth is alway "Where did you get that?" I answer "From Banggood.com." Then I add "And to answer your second question, contrary to what you might expect from the name, Banggood is not an adult site."
Cool Gift! Was brought as a gift for someone, they really loved it. Great to watch and works on the smallest amount of heat. Great service from Bangood!