What a coincidence! Three days into National Chemistry Week, we dive further into STEM education to celebrate Mole Day. We’re not toasting the burrowing animal, but the unit of measurement (mole) used primarily in chemistry and molecular science studies. We don’t know how many moles of liquid nitrogen are in this photo, but we do like the dynamic look of the super-cooled element, which in liquid form can resemble boiling water. We hope this photo doesn’t depict liquid nitrogen after somebody in the lab dropped their keys into the vat. At minus 320 degrees Fahrenheit, liquid nitrogen tends to flash-freeze anything immersed in it.
Of moles and liquid nitrogen
Today in History
More Desktop Wallpapers:
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World Bee Day
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Tokyo welcomes a futuristic new art museum
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Sea Slug Day
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Great horned owl near Lake Tohopekaliga, Florida
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Adorably evolutionary sea sheep
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A festival of colors
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Tom Turkey takes Manhattan
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Turning darkness into light
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Surfer s paradise
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An endless journey
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A crane for good luck in today’s big game
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Kiteboarding and windsurfing in Croatia
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Siblings that play together…
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May we have this dance?
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Happy Star Wars Day!
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World Rivers Day
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The Monastery of Roussanou, Greece
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World Jellyfish Day
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Autumnal equinox
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International Talk Like a Pirate Day
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Here’s why landmarks are going dark
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The persistence of Perito Moreno
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Hey, don t you guys have somewhere to be?
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Autumn in Alaska
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Veterans Day
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Tiny fliers head south
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Upstate autumn
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Fossil Day
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Heron lies the Salton Sea
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At the foot of Dubrovnik s Gibraltar