In 1928, Scottish scientist Alexander Fleming discovered penicillin by accident when he observed that a mould had contaminated one of his Petri dishes, killing the bacteria growing on it. This led to the development of antibiotics that have saved countless lives.
In 1895, German physicist Wilhelm Conrad Roentgen was experimenting with cathode rays when he noticed that a screen coated with a fluorescent material glowed even when he placed objects between it and the cathode ray tube. He discovered that he had created a new kind of ray, which he called X-rays, and won the Nobel Prize for his discovery.
In 1945, Percy Spencer, an engineer working for the Raytheon Corporation, noticed that a candy bar in his pocket had melted while he was testing a radar system. He realized that the microwaves emitted by the radar had caused the candy bar to melt, leading to the invention of the microwave oven.
In 1938, chemist Roy Plunkett was experimenting with gases used in refrigeration when he discovered a new substance that was resistant to heat and chemicals. This substance became known as Teflon and is now used in a wide range of applications, from non-stick cookware to aerospace engineering.
In 1943, Swiss chemist Albert Hofmann was working on a project to synthesize new medications when he accidentally ingested a small amount of a compound he had created called lysergic acid diethylamide (LSD). He experienced vivid hallucinations and thus, the drug was introduced as a recreational drug.
In the 1990s, scientists at Pfizer were developing a new drug to treat heart disease when they discovered that one of the side effects was causing male patients to experience erections. This led to the development of Viagra, a medication used to treat erectile dysfunction.
In 1950, electrical engineer John Hopps was working on a machine to monitor heart rate when he discovered that an electrical pulse could be used to regulate the heart. This led to the development of the pacemaker, which has saved countless lives by regulating abnormal heart rhythms.
In 1941, Swiss engineer George de Mestral was out hunting when he noticed that burrs from plants were sticking to his clothes and his dog's fur. He examined the burrs under a microscope and discovered that they had tiny hooks that allowed them to stick to the fabric. This led to the invention of Velcro, a fastener that is now used in a wide range of applications.
Kajol dazzled on the red carpet in a pink colour saree.