AskScience Panel of Scientists XVIII
AskScience AMA Series: I am Jessica Pierce, a bioethicist who has recently focused my work on animals. AMA!
Durban, South Africa. Are these different colors due to the Umgeni river or the difference in temperature that affects plankton?
How is a fighter jet engine different from a commercial jet engine?
Could you use jet engine with, ramjet and than sramjet in series?
Why do nuclear power plants have those distinct concave-shaped smoke stacks?
Are our bones sensitive to cold just like our teeth are?
Since mountains are changing elevation due to plate tectonics is it possible to know what the highest mountain to ever have existed was?
Why does salt increase rusting in a metal when it doesnt take part in the reaction. Is it a catalyst? If so how?
What makes a material sticky?
Can we use nuclear weapons for good? Elon Musk said we can use them to melt Mars's ice caps. Are there any other positive uses?
Is there a major difference between steam and fog? At a basic understanding, they’re both just water in a gaseous state right?
In cars, why do objects in the side mirror opposite the driver appear so much farther away?
What is below the Earth in space?
Why does AM radio play with such lower quality compared to FM?
How do clams make pearls?
If the Crab Nebula is 6,523 light years away, how can scientist know it was a supernova that created it only 1,000 years ago? Would we need another 5,523 years for the light to reach us to even know it happened?
I've been fascinated by ball lightning for a long time. Has a reasonable theory emerged as to what causes it or is it still a mystery?
How did astronauts on moon landing missions perform normal body functions?
Are there any parts of the human body that can’t be transferred to another person?
Is bloodletting still used today and if so, what for?
How do linguists know the pronounciation of syllables/letters in dead languages?
Does the heat released in a chemical reaction affect the rate of the reaction?
Is There a Relationship Between Standard Candle Stars and Stars on the Main Sequence of the Hertzsprung-Russell Diagram?
How does the Terrell Rotation work?
How large a space station would stay stablely at the L4 and L5 Lagrange points?
Were superconductors theorised first or discovered?
What is happening on an atomic/molecular level when someone experiences a contact allergy?
What is the difference between flexural modulus and elastic modulus of bone?
What is largest possible star that can exist in nature?
Could I have a bag of neutrons? And if so, what would it look like, would they be reactive?
Physicists sometimes talk about symmetry or "supersymmetry", but they seem to use it in a different way than in normal conversation. What does it mean in this context?
Which process(es) contributed the most to the abundance of certain elements on Earth?
What happened to Apollo 16 Lunar Module?
What's actually going on in double-jointed people?
Why can insects survive so long after receiving wounds that would instantly kill a human or other animal?
When you are in a coma, do you go through sleep stages like REM or deep sleep?
Is it possible for a dark object to be moved by a bright enough flash of light?
What is the color of the sun? If it's yellow/orange, why is sunlight white?
Approx what percentage of the Universe is visible in the famous “Pale Blue Dot” photo?
The bennu asteroid has a 1 in 2,700 chance of striking Earth on September 25, 2135. How are odds of an asteroid impact calculated? How are they adjusted over time? What don't we know that makes them measured by chance?
How can we tell the make-up of exo-planets from light alone?
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Would it be possible to measure the angular momentum of Sag A* by observing a frame dragging effect on the stars orbiting it?