It was found by a Scottish Scientist named Alexander Fleming. It fights bacterial infection in humans.
It was fully invented by Thomas Edison and it’s invention has helped us do anything at any time, i.e., we now don’t have to wait for the Sun to be productive.
They were invented around 3500 BC and had to be very round and smooth. Soon the concept of Wheel and Axle was invented and further became Carts.
It was invented by Johannes Gutenberg around 1440-1450. He made the Mechanical version of printing press rather than movable one.
It was invented by Alexander Graham Bell and was given its patent on March 7, 1876. The first call was made on March 10, 1876.
It was found around the stone age. This invention changed the world as it provided warmth and the ability to cook food.
It was discovered by German Engineer and Physicist Wilhelm Conrad Röntgen accidentally in 1895. It helps diagnose broken bones, tumours etc.