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:
-
The Canary Islands, Spain
-
Autumn comes to the Porcupines
-
Listening to the sea
-
Lavender fields on the Valensole Plateau in Provence, France
-
Pride 2024
-
Wanderin Wawayanda
-
Polar bear season in Manitoba
-
Keep calm and drive on (slowly)
-
Celebrating the UN’s International Day of Families
-
Gazing down on planet Earth
-
Looking back at Yellowstone, 30 years after the fires
-
Signs of life in the Empty Quarter
-
How green is my valley
-
Oymyakon, Russia
-
A grotesque scene
-
Memorial Day
-
Channel Country, Australia
-
World Rivers Day
-
Did they forget to fly south?
-
Put your helmet on, we’re going for a hike
-
Climb a tree for wild animals and plants
-
World Oceans Day
-
Mercury in retrograde
-
Indian Independence Day
-
Design for Each and All
-
Honoring our fallen heroes
-
In search of roadside attractions on ‘America’s Highway’
-
Bask in the glow—It s World Turtle Day
-
Bearded reedlings in Flevoland
-
Fin whales: A success story