Several times to improve its efficency and safety.
YES
IC chip
It has improved by being more fashioned and letting people see clearly.
Older phones often didn't have GPS, texting (with keyboards), cameras, data transfer, or internet connections.
T. J. Martin invented the portable fire extinguisher. His invention has been improved over the years but it is still basically the same. A canister filled with non flammable material that can blanket a fire to cut off its source of oxygen.
There have been over millions of car crashes since they were invented
Technology has improved a lot since the 1800's and will continue growing. It is a big world and many new thing are been invented each day.
Bernard Lassimone, a French mathematician, invented the standard manual pencil sharpener in 1828. In 1847, Therry des Estwaux invented an improved mechanical sharpener.
No one invented art it has been around since humans have been around
Shoes are constantly being invented and improved upon. Some shoes could have been invented just yesterday or last week for example.
since it was invented, it always has been!
personal computer