Customer Reviews

Based on 11 reviews
91%
(10)
9%
(1)
0%
(0)
0%
(0)
0%
(0)
R
R.G.

I can get this engine to run for just over an hour with boiling water in an insulated coffee mug. In a regular mug, boiling water will power it for about 30 minutes. I haven't had much luck with trying to get it to run with ice, yet. It's fun experimenting with it and kids are mystified by it.

E
E.

Best desk toy ever. My Daughter and Son in law got me this for Fathers Day. Wow! So much fun! The perfect instructional science desk toy!

K
K.

Great little engine, very well made. Great fun.

B
B.

Runs incredible long on a hot cup of coffee. What a conversation piece!!!!

T
T.T.

I am a 71 year old scientist with multiple graduate degrees in chemistry, biochemistry and pharmaceutical chemistry and this is the best toy I have ever received since my first chemistry set and Erector sets when I was 5 yeas old. The engine is beautifully made - it is as much a piece of art as it is a working demonstration of entropy.