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Make notes on your backyard bird watching
In addition to keeping your beverage insulated against temperature change
or record observations from your backpacking trip in this early scientific illustration of mountainous regions from around the world
By candlelight
and front and back pages with iconic MSE illustrations
Equations That Changed the World 18 oz Steel Bottle Astronomy Make notes on your backyardRather than looking up part way through your proof to find once again that your coffee has gone cold, pour that precious brew into your fancy new math flask, and never have room temperature coffee again! Let yourself get lost in the elegance of your work and the beauty of the equations both on your page and on your flask. Wrapping around this brick red bottle, you'll find some of the most important, groundbreaking equations our world has known. Now go
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