So I love desk trinkets. This is truly a piece of craftsmanship. Upon arrival, I was amazed at the detail that went into the assembly. No detail was forgotten. 5 Starts!
Great product, use it this year to demonstrate energy conversions, engineering design, and students were amazed to see it in action. Stirling engines are not practical in real world applications and shouldn't be run excessively, but the kit does contain spare parts