A search on Google www.google.com for hand-boiler toy resulted in these
sites and others that offer the hand-boiler toy for sale:
http://www.sciplus.com/category.cfm?subsection=1&category=4
http://www.trust1.com/commerce/index.asp?merchant=ekay&department=Novelties
http://www.science-is.com/misc.htm
http://www.museumproducts.net/p_bird.asp?CatId=1
http://www.free-electricity.net/products/toys.html
Nina Thayer
Snacktalk Moderator
>
> In your experiment entitled "Hand-Held Heat Engine" you have shown a =
> device called a "hand boiler" (photo below). When I was growing up my =
> grandfather had one of these, to the great interest of my brother and I. =
> Somewhere along the way it got broken. Over the last thirty years I =
> have never forgotten about it and have always hoped to find one someday. =
> I have never seen it in any of the science-related stores and had =
> assumed that they were no longer being made. It was to my great =
> surprise and joy to see the device featured on your website.
>
> Your article mentioned Edmund's Scientific as a source for this product, =
> but I have been unable to find it through their website. I have sent an =
> e-mail inquiring further. Are you aware of any other sources?
>
> Thank you for your help.
>
> Doug Johnson
>
> http://www.exploratorium.edu/snacks/hand_held/index.html
>
>
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