Score
Title
97
AskScience Panel of Scientists XVIII
553
AskScience AMA Series: I am Melinda Krahenbuhl and I am the director of the Reed Research Reactor, the only nuclear reactor operated primarily by undergraduate students. AMA!
10109
What elements are at genuine risk of running out and what are the implications of them running out?
278
Can you break sound barrier under water or any other material?
4029
What’s the largest star system in number of planets?
9
Does knowledge have mass? If so, how much does it weigh?
4
Does smoking THC extract or plant-based marijuana have long-term effects on memory?
5
We can see galaxies and some other objects that are millions or even billions of light years away, some of them might not exist anymore. How can we know or estimate if a star or a galaxy still exists?
18
Why does plastic turn white at the creases when folded/bent?
6
Are people taking immunosuppressant drugs, for example transplant recipients, less susceptible to autoimmune diseases?
3
How does radiation poisoning work?
6
When throwing stuff, does our brain actually try to calculate how hard it has to throw for the item to land at the desired point? Or does it just estimate based on experience?
5
How does thermal imaging work?
3
Could we make an artificial cell?
21
Do microwaves leave residual changes to molecules after heating?
3
Does the temperature have any (noticable) effect on air resistance?
3
What makes a given smell/taste "bad" or "good". Why do we interpret them one way or the other?
0
How do matches work? (The matches that generate fire obviously)
1
What happens to the jaw after permanent teeth grow in?
2
How is the height of the mountain measured?
0
How does mold grow inside ice machines?
4
Can a setup of hall engines provide enough thrust to keep a satellite stationary above earth?
3
What causes clothes to shrink in the dryer?
0
Is it possible for something underwater to catch on fire?
3
Why do mirages (ie. on a highway or desert) appear as specular reflections when the rough material they reflect off of should only produce diffuse reflections?
1
Why do joints like the wrists and ankles have a whole ton of bones, but joints like the shoulders only have two?
9
How does a memristor work?
3
When I move my phone left to right in a dark room while looking at this image, the text appears to jiggle back and forth like jello, or almost like a parallax. Why?
5
Do other species, animals, etc. experience the placebo effect?
2
What are the neurological or psychological differences between the auditory hallucinations of voices, e.g., as in schizophrenia, and a persistent negative internal monologue in one's own inner voice?
3
How do you measure the effectiveness of vaccines without a controlled experiment?
1
What makes the felid species "Neofelis" so distinct from others and a member of Pantherinae?
3831
What is the effect, positive or negative, of receiving multiple immunizations at the same time; such as when the military goes through "shot lines" to receive all deployment related vaccines?
1
Why did the “the Black Plague” and similar plague like events occur, some with massive impact, and why did they end?
2
I've read that when Betelgeuse explodes, it will create high levels of light at night for several days, but would a supernova on the "day side" of Earth even be visible at all?
2
Does listening to music or videos through headphones/earphones affect actual hearing after extended periods of use?
1
By what cycle do potholes develop?
4
If a planet had a radius that was equal to the altitude of Earth’s geosynchronous orbit, but had the same mass and rotational period as the Earth now, would there be reduced or zero gravity on the surface?
1
Does sound travel slower the deeper you are in water?
1
What is lost and what is preserved in a particle collider?
8
Why does snow melt in the sunlight, even when the temperature outside is below freezing?
14
Mar's summer temperature can be 20 celsius. Could a human survive with just an oxygen mask?
520 _foobie At the neuromuscular junction between motor neurons and muscle tissue, the motor neurons release a chemical called acetylcholine which triggers the muscle tissue to contract. When the motor neuron is damaged or recieves abnormal signals (e.g. from a nerve being pinched) it releases more acetylcholine than usual which causes the muscle cells near the junction to clench without releasing, forming a contraction knot known as a trigger point. A cluster of these contractions is called a trigger point complex and forms what we think of as a muscle knot. Here's a fascinating video explaining this from the perspective of treating trigger points with dry needling: https://www.youtube.com/watch?v=xrFF7n29XOU edit: here's a paper that nicely summarizes the topic and goes into detail about the concept of different kinds of "locus" within the trigger point complex that correlate to symptoms of tenderness: https://www.mcgill.ca/anesthesia/files/anesthesia/wk_3c_myofascial_trigger_points.pdf
14 [deleted] [removed]
4 [deleted] [removed]
526 0 _foobie At the neuromuscular junction between motor neurons and muscle tissue, the motor neurons release a chemical called acetylcholine which triggers the muscle tissue to contract. When the motor neuron is damaged or recieves abnormal signals (e.g. from a nerve being pinched) it releases more acetylcholine than usual which causes the muscle cells near the junction to clench without releasing, forming a contraction knot known as a trigger point. A cluster of these contractions is called a trigger point complex and forms what we think of as a muscle knot. Here's a fascinating video explaining this from the perspective of treating trigger points with dry needling: https://www.youtube.com/watch?v=xrFF7n29XOU edit: here's a paper that nicely summarizes the topic and goes into detail about the concept of different kinds of "locus" within the trigger point complex that correlate to symptoms of tenderness: https://www.mcgill.ca/anesthesia/files/anesthesia/wk_3c_myofascial_trigger_points.pdf
15 0 [deleted] [removed]
6 0 [deleted] [removed]