Wilhelm Conrad Rontgen is associated with the invention or discovery of the X-ray machine.

Air Commodore Sir Frank Whittle (1 June 1907 - 9 August 1996) was an English Royal Air Force (RAF) engineer air officer. He is credited with single-handedly inventing the turbojet engine. A patent was submitted by Maxime Guillaume in 1921 for a similar invention; however, this was technically unfeasible at the time. Whittle's jet engines were developed some years earlier than those of Germany's Hans von Ohain who was the designer of the first operational turbojet engine.

Kirkpatrick Macmillan was a Scottish blacksmith. He is generally credited with inventing the pedal-driven bicycle.

Charles Macintosh is associated with the invention or discovery of Waterproof raincoat.

Thomas Edison is associated with the invention or discovery of Commercially practical light bulb

Levi Strauss is associated with the invention or discovery of Blue jeans.

Blaise Pascal is associated with the invention or discovery of Barometer.

Clarence Birdseye is associated with the invention or discovery of Modern frozen food industry.

John Moses Browning is associated with the invention or discovery of Automatic handgun