Dam higher than 1000 feet

The Rogun Dam at Vakhsh, Tajikistan, on its planned completion date in 2000, should stand at 1,099 feet (335 meters) high. Continue reading

Four-Stroke Internal-Combustion Engine

German inventor Nikolaus Septust Otto developed a four-stroke internal-combustion engine in 1876. Continue reading

Construction of the Holland Tunnel

Construction of the Holland Tunnel began on October 12, 1920 that runs between New York, NY, and Jersey City, NJ, USA, beneath the Hudson River. Continue reading

Development of Rotary Internal Combustion Engine

German engineer Felix Wankel developed the rotary internal-combustion engine in 1954-56 while at the NSU Motorenwerke AG in Neckarsulm, Germany. Continue reading

Jet Aircraft Engine Afterburner Invented

Rolls-Royce Limited of Derby, Derbyshire, England developed a jet aircraft engine afterburner in 1945. Continue reading

Invention of Hydraulic Mortar

English civil engineer John Smeaton formulated the hydraulic mortar while experimenting with underwater mortar mixtures in 1756, Continue reading

Invention of DNA Chain Polymerization

American researcher Kary B. Mullis, a staff chemist for the Cetus Corporation in Emeryville, CA, USA invented DNA chain polymerization in 1983. Continue reading

Commercial Atmospheric-Pressure Piston Steam Engine

Thomas Newcomen built the atmospheric-pressure piston engine that superseded Thomas Savery’s engine. Continue reading

Binding Stone Cement Created in Rome

Binding stone cement was used in various formulas from early antiquity and used by Romans of circa 150 BCE, Continue reading

Pierre Riquet

Paul Riquet was born in Béziers, Hérault, France, the eldest son of solicitor, state prosecutor and businessman Guillaume Riquet. Continue reading