Ice cream maker
device · 1843 · Industrial Revolution
A hand-cranked machine for ice cream (Johnson).
What it is made of
- Crank — has part. A handle.
Principles and materials it uses
- Latent heat — uses. Ice with salt draws away heat.
- Wood — is made of. Johnson’s ice cream maker is a wooden bucket.
- Tin — is made of. Inside is a tin cylinder.