Blaise Pascal invented the first digital calculator to help his father who was a tax collector count taxes. He nicknamed the calculator "pascaline." It was capable of addition, subtraction, multiplication and division.Know More
In the 1640s, Pascal invented the syringe and the hydraulic press. These came about through his investigations into barometric pressure. Another of his inventions was the roulette machine. This invention came about by accident while he was trying to invent a perpetual-motion machine that could generate energy.
Blaise Pascal also made several contributions to the fields of physics, mathematics and philosophy. In mathematics he came up with what is now known as Pascal’s triangle. The triangle is formed by numbers called binomial coefficients. Each number is the sum of the two numbers directly above it. Pascal presented this information in written form in 1653.
In 1654 he formulated a probability theory. The idea behind the mathematical theory came about owing to his desire to help a friend who had questions on gambling.
In physical sciences, Pascal proved that atmospheric pressure could be measured using real weights. He also discovered that vacuums did exist, a theory that created conflict between him and other well-known and respected scientists, such as Descartes.Learn more about Inventions
Many Roman inventions, including roads, aqueducts, sewers, cement and the Julian calendar, still see use around the world today. Roman inventions ranged from small creations to large-scale inventions like heavy infrastructure. The inventions of Romans ultimately connected the Roman Empire to Europe, and facilitated its expansion.Full Answer >
George T. Sampson was an African-American inventor best known for his early patent of the automatic clothes dryer in 1892. He also invented a sled propeller.Full Answer >
The Sumerians came up with the concept of 60-second minutes, 60-minute hours and 24-hour days; Sumerians founded the first schools, and they created the first wheeled vehicles, toys for children and the idea of the 360-degree circle. Sumerians also developed the first system of writing and writing implements.Full Answer >
Robert Boyle is considered to be the "father of chemistry," and he is only known to have invented the famous air pump that he used to study air pressure. Boyle was also responsible for several achievements in physics and chemistry, including detecting the rule of air inside the transmission of sound, determining the differences between compounds and mixtures, analyzing crystals, analyzing electricity, analyzing hydrostatics and analyzing refractive energy.Full Answer >