archimedes’ screw (ar•chi•me•des’ screw)

a spiral screw which turns within a tube or pipe in order to move material. When set on an inclined angle can be used to raise water. A very ancient method.
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s