Who invented question

Scientists are persons of great minds, who ask question about the phenomenon and systematically answer the question themselves.

No doubt, they are curious, creative and well organised. They have the ability to observe new things in a different way. Their discoveries have change the world and gave it a new dimension.

It is correctly said by George C. Lichtenberg that "an extraordinary men make the discoveries, which later appears so easy and simple". Name the scientist who had discovered that some molecules have mirror images? Lord Kelvin B. Louis Pasteur C. Robert Hooke D. Henry Moseley Ans. B Explanation: Louis Pasteur discovered that some molecules have mirror images and explained them as left-handed and right-handed versions of a chemical compound.

Who is known as the father of plastic surgery? Charaka B. Naid C. Sushruta D. None of the above Ans. C Explanation: Sushruta is the founding father of surgery and plastic surgery. He had also written Sushruta Samhita an outstanding treatise in Indian medical literature and describes the ancient tradition of surgery in India.

Who invented the safety break, which stop the elevator from crashing? Thomas Edison B. Eli Whitney C. He sold them by the cube for just three shillings. At that time, breadcrumbs were regularly used for erasing marks off paper, and Nairne said he got the idea after he picked up a piece of rubber called caoutchouc at the time instead of breadcrumbs and realized how well the rubber worked at erasing.

The word rubber was used for any object that was used for rubbing so it eventually was used for this new invention. But rubber back then was not durable and crumbled easily. In , an American chemist named Charles Goodyear invented vulcanization , a chemical process that made rubber durable, and rubber erasers have been used around the world every since.

Want to know even more about erasers? Check out the history of school supplies! Original toothpastes were actually more like tooth powders made from all sorts of ingredients like crushed bones, oyster shells and ash.

Played 1 times. Print Share Edit Delete. Live Game Live. Finish Editing. This quiz is incomplete! To play this quiz, please finish editing it. Delete Quiz. Question 1. Who invented the steam machine? Marak Obama. Thomas Savery.

Charles Weisenthal. Rubber boot D. Which scientist discovered the radioactive element radium? Isaac Newton B. Albert Einstein C. Benjamin Franklin D. Let us discuss. When was barb wire patented? Glidden was born in New York on Jan. He invented barbed wire in and was granted the patent on Nov. After a three year battle over the patent, which he eventually won, Gidden became known as the "Father of Barbed Wire". Charles Richter B.

Hiram Walker C.