Score
Title
260
AskScience Panel of Scientists XVIII
624
AskScience AMA Series: IAmA restoration ecologist focused on restoring oysters to the NY Harbor in New York City. AMA!
969
How does sunscreen stop you from getting burnt?
2844
How are drugs like antidepressants (who’s effects aren’t immediately apparent) developed?
5494
In the last 5-10 years, there’s been tremendous efforts made by many of the first world countries to curb carbon emissions. Have we made a dent?
8
Why does the space shuttle's transonic transition end so abruptly (see linked video)?
30
How do spacewalking astronauts get rid of body heat and CO2 they generate?
3
How does a catalyst affect activation energy?
3122
Why doesn't microwave energy escape through the holes in the screen of a microwave oven?
5
Why does the United States generally have a colder climate than most of Western Europe despite being at the same lattitude, and some parts even being further south?
15
How does the mind make up a physical feeling you've never experienced before while dreaming? For example, a virgin having a wet dream or having a foot amputated?
2
How often do collisions in LEO happen?
4
Why do people start to shrink once they get past a certain age?
3
Do bees have spatial memory when foraging for food?
7
How do we know the composition of Earth's core?
3
Suppose in an X speaking country, a child is raised by 2 parents; one speaks Y language around them, the other speaks Z language. What's the science behind this kid learning to differentiate all three languages and eventually being able to speak all 3, as opposed to if they were only exposed to 1?
25
Why does alcohol kill bacteria?
22
Why is the output power greater than the input power for a microwave?
5
Why do 3 polarising filters, at certain angles, allow some light through when two are at right-angles?
0
What happens do humans blood brain barrier as we age?
5
How do plants react to opiates? If I were to, say, use fentanyl as fertilizer, would the plant die? And what about other popular types of drugs, such as coke?
9
When can you consoder a organism dead?
2
Is chemical rocket exhaust usually a plasma?
12
Does hydraulic fracturing contribute to increased seismic activity(earthquakes) and how likely is it for the mix of chemicals+water ,that are used to displace the shale, to contaminate wells and body’s of water?
7
Why do car wheels look like they're rolling backward when moving fast?
4
Does everything rotate in space? If so, why?
2
Why don't lakes with streams flowing into other lakes eventually completely drain into the other lake?
9
Do animals have a really good sense of time or is it confirmation bias by humans?
10
What is the difference between an imaginary friend and a hallucination? What about Tulpas?
4
Where do scientists come up with temporal timelines for dinosaurs?
4987
This may be a stupid question, but what defines GMO. Is it simply changing a plant through cross pollinating (at its simplest level) such as Mendel, or does GMO mean laboratory tested and genetically altered through a laboratory?
14
What defines an “oil”?
136
Why is an Alpha particle denoted as a Helium atom?
0
When you pull at a slinky from the top, why does the bottom take a second to go with it?
3
a spider learns to build a net from other spiders or is it instinct ?
6
Why do molecules interact with others when they both have 8 valence electrons?
5
Is it more energy efficient to put cold water in a kettle, or hot water?
8
Do the planets in our solar system all orbit the sun on the same plane?
1
Which regions of the brain show diminished cell count with aging?
8
If Radiation is cumulative in our body, is Bluetooth (even with BLE) harmful to humans if we are constantly exposed to it with cellphones, smartwatch, etc. and also from other's electronic devices around us?
0
Can you feel the cold in space?
188
Are there any "weird" uses for heavy/transuranic elements?
14 madhadron This was the question that drove people to assume the existence of 'luminiferous ether' (literally, light bearing background substance) in the 19th century. Wikipedia actually has a [pretty decent discussion](https://en.wikipedia.org/wiki/Luminiferous_aether) of the history of the idea and how it was abandoned. What you're doing is assuming that because the same mathematics applies to electromagnetism and waves in media, there should be deeper analogies between them. But let's look at how we actually interact with both situations. For waves in a medium, such as water, we can see the height of the water throughout and find that the height obeys a wave equation. But what about electromagnetism? Fundamentally, all of electromagnetism is about the fact that when I wiggle a charged particle over here, a charged particle over there wiggles as well. That's it. But when we carefully map out how the wiggles work, we find that the most convenient way to keep track of it is to invent something we call the electromagnetic field that obeys wave equations. But we must not confuse our bookkeeping device with displacements of some medium that we observe.
14 0 madhadron This was the question that drove people to assume the existence of 'luminiferous ether' (literally, light bearing background substance) in the 19th century. Wikipedia actually has a [pretty decent discussion](https://en.wikipedia.org/wiki/Luminiferous_aether) of the history of the idea and how it was abandoned. What you're doing is assuming that because the same mathematics applies to electromagnetism and waves in media, there should be deeper analogies between them. But let's look at how we actually interact with both situations. For waves in a medium, such as water, we can see the height of the water throughout and find that the height obeys a wave equation. But what about electromagnetism? Fundamentally, all of electromagnetism is about the fact that when I wiggle a charged particle over here, a charged particle over there wiggles as well. That's it. But when we carefully map out how the wiggles work, we find that the most convenient way to keep track of it is to invent something we call the electromagnetic field that obeys wave equations. But we must not confuse our bookkeeping device with displacements of some medium that we observe.