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Boundary: Bleed area may not be visible.
by British Library
$70.00
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Product Details
Our premium yoga mats are 24" wide x 72" tall x 0.25" thick and made from natural rubber with a blended microfiber top surface. The top of the mat has the image printed on it, and the back is solid black with textured dimples for better floor grip.
Design Details
Watts' Double-acting steam engine illustration taken from page 47 of The first century of the Republic. A review of American progress by Theodore... more
Care Instructions
Wash with a damp cloth and air dry.
Ships Within
2 - 3 business days
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Watts' Double-acting steam engine illustration taken from page 47 of "The first century of the Republic. A review of American progress" by Theodore Dwight Woolsey, 1876. The Watt steam engine (alternatively known as the Boulton and Watt steam engine) was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston helped by a partial vacuum. Improving on the design of the 1712 Newcomen engine, the Watt steam engine, developed sporadically from 1763 to 1775, was the next great step in the development of the steam engine. Watt's two most important improvements were the separate condenser and rotary motion. The separate condenser, located external to the cylinder, condensed steam without cooling the piston and cylinder walls as did the internal spray in Newcomen's engine, more than doubling Watt's engine's efficiency. Rotary motion was more suitable for industrial power than the oscillating beam of Newcomen's engine. James Watt's design beca...
$70.00
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