Answer:
It's a pretty interesting mechanical device that's used for weaving. So, basically, when you're weaving, you have two sets of threads - the horizontal threads are called the weft, and the vertical threads are called the warp. Normally, to weave the weft threads through the warp threads, a person would use a handheld shuttle to pass the thread through. However, with the invention of the fly shuttle, this process became automated and much faster.
The fly shuttle is moved by means of ropes and pulleys, and it's able to quickly pass the weft thread through the warp threads without the need for manual intervention. This made the weaving process much more efficient, and allowed weavers to produce fabric much faster than they could before.
The fly shuttle was invented in the second decade of the 18th century, and it really was a game-changer for the weaving industry. With the fly shuttle, weavers were able to produce more fabric in less time, which meant that they could sell more and earn more money. It was definitely a boon for the weavers!