Up to 50% Off Canvas Prints, Business Cards, Fleece Blankets & More   |   15% Off Sitewide   |   Use Code: SNUGGLEUPZAZ   |   Details

Reverend Dr Robert Stirling Postcard

$1.15

per postcard

Qty:
8
 
  • Front
    Front
  • Back
    Back
Reverend Dr Robert Stirling Postcard
Matte
  • 17 pt thickness / 120 lb weight
  • Light white, uncoated matte finish with an eggshell texture
Details
Orientation
Select an option:
Details
Postcard
 
About This Product
  • Sold by
Orientation: Postcard

Create your own vacation-worthy postcard! Any view you’ve seen, any monument you’ve fallen in love with, can all be added to your postcard with our personalization tool.

  • Dimensions: 4.25" x 5.6"; qualified USPS postcard size
  • High quality, full-color, full-bleed printing on both sides
  • Available in a semi-gloss or matte finish
Paper Type: Matte

The most popular paper choice, Matte’s eggshell texture is soft to the touch with a smooth finish that provides the perfect backdrop for your chosen designs.

  • Light white, uncoated matte finish with an eggshell texture
  • Paper is easy to write on and won't smudge
  • Made and printed in the USA
About This Design
Reverend Dr Robert Stirling Postcard
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.
available on 14 products
    Up to 50% Off Canvas Prints, Business Cards, Fleece Blankets & More   |   15% Off Sitewide   |   Use Code: SNUGGLEUPZAZ   |   Details
Reviews
There are no reviews for this product yet.
Have you purchased this product? Write a review!
Recently Viewed Items