Is Jane castor and betty castor sisters?

Helen of Troy was the sister of the twins Castor and Pollux. Their mother was Leda, and their other sister was Clytemnestra. Pollux was also immortal whereas Castor was mortal.

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Well Castor gras and castor sec were made by the aboriginals. They trapped beaver and used their fur to make these. Well castor gras is a fur coat (made from beaver skin) they put the smooth, downy...

Use a shopping cart for an example, the rear casters (wheels) are fixed, the front casters are steering casters.

The next time you go to your local Shopping Center have a look at the wheels under the shopping trolley. That is a castor wheel.