Category: mechanical engineering

Illustration of a hydropowered perpetual flute…

Illustration of a hydropowered perpetual flute from “The Book of Knowledge of Ingenious Mechanical Devices” by Ismail al-Jazari in 1206.

Samarkand Station, Russian Empire (modern day Uzbekistan), 1890.

Samarkand Station, Russian Empire (modern day Uzbekistan), 1890.

Holt Steamer No. 77, the second prototype of a…

Holt Steamer No. 77, the second prototype of a crawler-track-type tractor built by the Holt Machinery Company, 1905.

Harriet Quimby in the cockpit of her Blériot monoplane, 1911.

Harriet Quimby in the cockpit of her Blériot monoplane, 1911.

Dawn O’Mara sitting on the edge of the front cockpit of a de…

Dawn O’Mara sitting on the edge of the front cockpit of a de Havilland DH82 Tiger Moth biplane, circa 1953.

Depiction of the flight of M. Poitevin, July 14, 1850. M….

Depiction of the flight of M. Poitevin, July 14, 1850. M. Poitevin and his horse flew over Paris in a hot air balloon. Poitevin later declared having seen Paris from so high, that the city looked like a map.

A page of Willem ’s Gravesande’s 1720 book Physices…

A page of Willem ’s Gravesande’s 1720 book Physices Elementa Mathematica with Jan van Musschenbroek’s magic lantern, an early type of image projector,  projecting a monster. The depicted lantern is one of the oldest known to be preserved and is in the collection of Museum Boerhaave, Leiden.

A compound achromatic microscope by Smith and Beck, 1857.

A compound achromatic microscope by Smith and Beck, 1857.

9th century Arabic translation of The Conica (Conics) of…

9th century Arabic translation of The Conica (Conics) of Apollonius of Perga, written around 200 BC.

“Account of the new invented Pennsylvania…

“Account of the new invented Pennsylvania fire-places,” containing Franklin’s drawing for what became known as the Franklin stove, 1744