An LCD (Liquid crystal display) monitor.
An ancient, very complex mechanical device that may have been a calculator.
something that hasn't been invented yet is a teleportation device Manned Interstellar Travel
The first mechanical computing machine was invented in Greece circa 100 BC: It was used for navigation. it was called the Antikythera mechanism.It is remains unknown as to the origins and dating of the first mechanical computers. For example by definition the Abacus is mechanical and can perform computations. It has been around and remains used for the past thousands of years. The Abacus and the archeological discovery of the Greek computer remain with unknown inventors.
An advantage of treatment with a medium- to long-term device is that it allows the patient to be mobile. In some instances, patients have been able to leave the hospital for continued treatment at home
Seeds would have to be removed manually and the development of mechanical spining in England would have be delayed.
Lenses had been known for some time before the telescope was invented. No one really specifically "invented" the telescope lens, they simply used existing equipment (lenses) in a new device (the telescope).
Cameras have been around since 1816. Scanners on the other hand were invented in 1957.
The use of methamphetamine has been growing in the United States throughout the 2000s
This question has not yet been answered.
Yes he invented a mechanical computer called the difference engine. This has been built, works, and is to be found in the science museum in London.
Many words have no antonyms. This happens to be one of them. You might be tempted to say "quietspeaker" but, such a device has not been invented...and, really, why should it?
It is uncertain who invented the first electric hearing aid, it may have been the Akoulathon, invented in 1898, but hearing aids in general, are an old concept. In the older days hearing aids were simply big, bulky, mechanical devices, such as trumpets and etc.