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KEVLAR®

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The Great Wall started as earth works thrown up for protection by different States. The individual sections weren't connected until the Qin dynasty (221-206 B.C.).

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The construction of the Channel Tunnel and its railway system is one of the greatest technological and engineering feats of the 20th century.  After almost 200 years of debate and planning for a fixed-link between France and Great Britain, the governments of both countries signed a treaty in 1986 to permit the building of a Channel Tunnel.

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The Three Gorges Dam

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The Big Dig

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Taj Mahal

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The Cassini Spacecraft 1

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Cypress Street Viaducts

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Roman Coliseum

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Petronas Twin Towers

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Chernobyl

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B.F. Goodrich

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ASME vs Hydrolevel

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Apollo 1

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Accepting Gifts

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Syncrude

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Aberdeen

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Hoover Dam

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The Great Pyramids of Giza

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Eiffel Tower

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Confederation Bridge

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Laerdal Tunnel

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California High-Speed Railway

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Wilbur and Orville Wright were American brothers, inventors, and aviation pioneers who achieved the first powered, sustained, and controlled airplane flight (1903) and built and flew the first fully practical airplane (1905).

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Thomas Alva Edison was the quintessential American inventor. He invented the phonograph, the carbon-button transmitter for the telephone speaker and microphone, the incandescent lamp, a revolutionary generator of unprecedented efficiency, the first commercial electric light and power system, an experimental electric railroad, and key elements of motion-picture apparatus, as well as a host of other inventions.

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Stephanie Louise Kwolek’s research with high performance chemical compounds for the DuPont Company led to the development of a synthetic material called Kevlar. Applications of this compound include bullet proof vests, underwater cables, brake linings, space vehicles, boats, parachutes, skis, and building materials.

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Isaac Newton's life can be divided into three quite distinct periods. The first is his boyhood days up to his appointment to a chair. The second period  was the highly productive period in which he was Lucasian professor at Cambridge. The third period saw Newton as a highly paid government official in London with little further interest in mathematical research.

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Samuel Colt was an American firearms manufacturer who popularized the revolver.

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Sadi Carnot (NICOLAS-LÉONARD-SADI CARNOT) was a French scientist who described the Carnot cycle, relating to the theory of heat engines.

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Rudolf Christian Karl Diesel was a German thermal engineer who invented the internal-combustion engine. He was also a distinguished connoisseur of the arts, a linguist, and a social theorist.

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Richard Phillips Feynman developed a new approach to quantum mechanics using the principle of least action. He replaced the wave model of electromagnetics of Maxwell with a model based on particle interactions mapped into space - time.

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René Descartes was a philosopher whose work, La géométrie, includes his application of algebra to geometry from which we now have Cartesian geometry.

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In November of 1999 Randice-Lisa "Randi" Altschul was issued a series of patents for the world's first disposable cell phone. Trademarked the Phone-Card-Phone®, the device is the thickness of three credit cards and made from recycled paper products.

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Pythagoras of Samos is often described as the first pure mathematician. He is an extremely important figure in the development of mathematics yet we know relatively little about his mathematical achievements.

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Pierre-Simon Laplace's father, Pierre Laplace, was comfortably well off in the cider trade. Laplace's mother, Marie-Anne Sochon, came from a fairly prosperous farming family who owned land at Tourgéville.

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Patsy Sherman was an essential part of the introduction of 3M’s first stain repellent and soil release textile treatments which have grown into an entire family of products known as Scotchgard® protectors.

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