General Science – Scientific Discoveries and Inventions GKGS001 1

Who invented the telephone?

Who invented the railway engine?

Who invented Radar?

Who invented polio vaccine (oral)?

Who developed the small pox vaccination?

Which one of the following was to be discovered first in the chromosphere of the sun

Which famous inventor ranks second in the number of patents registered?

What famous scientist and inventor participated in the invention of the Aqua-Lung?

Vulcanised rubber was invented by

The system for writing by blind people was invented by

The steam engine was invented by

The steam engine was invented by

The revolver was invented by

The refrigerator was invented by

The nuclear reactor was invented by

The laws of floating bodies was discovered by

The four blood groups were discovered by

The existence of isotopes was discovered by

The electro-cardiograph was invented by

Stethoscope was invented by

Spinning frame was invented by

Sodium was discovered by

Safety matches was invented by

Rayon was invented by

Radium was discovered by

Radioactivity was discovered by

Radio valve was invented by

Nylon was invented by

Microscope was invented by

Laser was invented by