A molecule of ammonia, NH3, typically exists as an umbrella shape, with three hydrogen atoms fanned out in a nonplanar arrangement around a central nitrogen atom.
Chemists Observe “Spooky” Quantum Tunneling
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Physics of Windshield-Cracking Raindrops Could Demolish Kidney Stones
A plane has to be going pretty fast for a mere raindrop to crack its windshield, but it can happen.
World Scientists Declare Climate Emergency
A global team of scientists including Dr Thomas Newsome at the University of Sydney and international colleagues has warned that “untold human suffering” is unavoidable without deep and lasting shifts in human activities that contribute to greenhouse gas emissions and other factors related to climate change.
The Most Spectacular Celestial Vision You’ll Never See
Contrary to previous thought, a gigantic planet in wild orbit does not preclude the presence of an Earth-like planet in the same solar system – or life on that planet.
Changes in High-Altitude Winds over the South Pacific Produce Long-Term Effects on the Antarctic
In the past million years, the high-altitude winds of the southern westerly wind belt, which spans nearly half the globe, didn’t behave as uniformly over the Southern Pacific as previously assumed.
Listening to Nature: The Emerging Field of Bioacoustics
Mitch Aide, a tropical ecologist based in Puerto Rico, thinks we should listen to the earth a lot more than we do now — and not just listen to it, but record and store its sounds on a massive scale.
