Very important fact, that comes up in hundreds of situations . . . . . We never feel motion. We only feel changes in motion. Example: You can read or sleep very well in a car going 70 miles an hour,...
The spinning jenny was a multi-spindled machine. So is the spinning mule. :) (I found the information on this website. All I did was type spinning mule and spinning jenny :) )
It is called the 'Spinning Jenny' because in the 1700s James Hargreaves had a daughter called Jenny and she knocked over the family spinning wheel and it gave Hargreaves the idea to make his...