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Reverend Dr Robert Stirling Coffee Mug

$17.75

per mug

Qty:
1
mug
40% off with code ZVALENTINE17
  • Left
    Left
  • Front Left
    Front Left
  • Center
    Center
  • Front Right
    Front Right
  • Right
    Right
  • Handle
    Handle
  • With Donut
    With Donut
Classic Mug
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About this product
Style: Classic Mug

Give a made-to-order mug from Zazzle to someone special, or treat yourself to a design that brings you joy or makes you laugh. Create your own photo mug, shop our collection of the funniest joke mugs, personalize your mug with a monogram, or express yourself with one of our 10 million designs.

  • Available in 11-ounce or 15-ounce
  • Dimensions:
    • 11-ounce: 3.8” h x 3.2” diameter
    • 15-ounce: 4.5” high x 3.4” diameter
  • Microwave and dishwasher safe
  • Strong, ceramic construction
  • Meets or exceeds FDA requirements for food and beverage safety
  • Printed on demand in San Jose, California
About this design
available on or 14 products
Reverend Dr Robert Stirling Coffee Mug
The Reverend Dr Robert Stirling (25 October 1790 – 6 June 1878) was a Scottish clergyman, and inventor of the stirling engine.He invented what he called the Heat Economiser (now generally known as the regenerator), a device for improving the thermal efficiency of a variety of processes, obtaining a patent for the economiser and an engine incorporating it in 1816. Stirling's engine could not explode, because it worked at a lower pressure, and could not cause steam burns. In 1818 he built the first practical version of his engine, used to pump water from a quarry. The theoretical basis of Stirling's engine, the Stirling cycle, would not be fully understood until the work of Sadi Carnot (1796 – 1832).----------While in Kilmarnock, he collaborated with another inventor, Thomas Morton, who provided workshop facilities for Stirling's research. Both men were interested in astronomy, and having learnt from Morton how to grind lenses, Stirling invented several optical instruments.Robert, together with his brother James an engineer, took out several further patents for improvements to the air engine and in the 1840s James built a large air engine driving all the machinery at his Dundee Foundry Company.In a letter of 1876, Robert Stirling acknowledged the importance of Henry Bessemer's new invention – the Bessemer process for the manufacture of steel – which made steam engines safer and threatened to make the air engine obsolete. However, he also expressed a hope that the new steel would improve the performance of air engines.
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Other Info
Product ID: 168723585670648634
Created on:
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