Score
Title
552
AskScience Panel of Scientists XVII
440
AskScience AMA Series: I am a squid biologist, AMA!
6909
What exactly is happening to your (nerves?) when circulation gets cut off and you start to tingle?
5831
At what point is a particle too small to cast a shadow?
21
Has Alzheimer's ever been observed in animals?
12
What exactly do they do with your body when you die, if you're an organ donor?
4
Do plants require constant nutrition or do they eat in cycles?
20
How does quantum mechanics explain covalent bonds?
5
If 1+2+3+... can be "regularised" to -1/12, does it follow that 1+4+9+... can be 0 or that 1+8+27+... can be 1/120?
178
How do most wild animals die?
4
How come water does not flow deep into our ear canal?
6
What percentage of the light that hits your retina is actually absorbed by it?
7
Why are long things flexible while short pieces of the same object are rigid?
3
How do zookeepers avoid accidentally domesticating animals in zoos?
90
What do scientists mean when they say "We only know what makes up 5% of the Universe"? What makes up the other 95% of the Universe and how come we don't know what it is ?
3
How do radiators know when the room has achieved the set temperature?
6
How do we know that climate change is caused by humans?
4063
How do our bodies build a tolerance to alcohol?
3
Is there any sort of concept of a genomic efficiency, i.e., is there any benefit to having a higher ratio of coding DNA to junk DNA?
3
If electrons behave so sporadically, how can scanning electron microscopes have such clarity of resolution?
1
How does letting a dish soak with soap and water work?
7
How does Lake Victoria replenish itself as the source of the entire Nile river which flows out and empties into the Mediterranean?
2
Would a wire or antenna, where a signal with 550THz is sent through, radiate light?
11
How exactly does White Blood Cell detect bacteria ?
0
If a person somehow was able to get to the surface of a gas planet, let’s say Jupiter, would they be able to walk on the surface or would they fall through?
67
Is there a way to measure sharpness - like a scale of sharpness? Thank you
0
Why does Marathon running cause toxin buildup in the Kidneys?
0
If a man has a stroke, does it have any effect on the quality of his sperm?
18
What prevents people in the United States from contacting Malaria from mosquito bites?
320
Does the temperature of air effect the distance sound can travel?
0
Can you "catch" helium?
0
Do oil pipe lines have a problem with the pipes expanding do to heat?
3
What happens inside a cats’ body when it ‘fluffs up’ as a result of being threatened? Also, is it an automatic response?
14
When I drop an insect (I.e an ant) from a large height (relative - from my chest to the ground), does it “hurt” as bad as it would for us?
6
If electrons move in a copper wire not by each electron travelling all the way, but by bumping into the one ahead and pushing it forward, how can electricity travel faster than the speed of sound of copper?
9
Why does tungsten (and the elements around it) have a high melting point?
6453
Why is the Liver one of the only organs that grows back when most of it is removed?
3
Why does diabetes causes kidney damage?
276
Since the W and Z bosons that mediate the weak force are not massless, does that mean that the weak force does not propagate at light speed?
8
What is the Furry hypothesis, in relation to quantum superposition, and why is it incorrect?
17
How is a breathalyzer a useful metric when testing blood alcohol content?
0
Why are planets rotational axis usually (approximately) orthogonal to their sun (since Planets like Uranus are seen as "wierd")?
3904 aslan_chan Well the short answer from the quoted paper where that measurement came from "The channel is more like a high-gradient mountain stream with a very large discharge; which is consistent with the theory that a short mountain river eroded through the divide and reached Malebo Pool, forming the present Lower Congo River. " This is the location where that measurement came from. However reading the rest of it, this is an anomalous depth and the majority of the river co forms to more normal standards and is around 10 to 80m on average.
572 exohugh Both [the height profile](https://i.imgur.com/GJWZEKs.png) and the sheer volume of water (42,000 cubic metres per second) give the river an insane amount of erosion power, carving a far deeper channel than, for example, the Amazon which has an [extremely shallow profile](https://media1.britannica.com/eb-media/55/103655-004-81742AE5.gif) over its lower course. (EDIT: In fact the amazon takes around 5000km to drop from 200 meters altitude to sea-level. The Congo does the same in just its final 100km.) The first European to explore [the Livingstone falls](https://en.wikipedia.org/wiki/Livingstone_Falls) (the long, steep stretch above Matadi), Henry Morton Stanley, said of them: *"..the wildest stretch of river that I have ever seen. Take a strip of sea blown over by a hurricane, four miles in length and half a mile in breadth, and a pretty accurate conception of its leaping waves may be obtained. Some of the troughs were 100 yards in length, and from one to the other the mad river plunged. There was first a rush down into the bottom of an immense trough, and then, by its sheer force, the enormous volume would lift itself upward steeply until, gathering itself into a ridge, it suddenly hurled itself 20 or 30 feet straight upward, before rolling down into another trough. If I looked up or down along this angry scene, every interval of 50 or 100 yards of it was marked by wave-towers - their collapse into foam and spray, the mad clash of watery hills, bounding mounds and heaving billows, while the base of either bank, consisting of a long line of piled boulders of massive size, was buried in the tempestuous surf. The roar was tremendous and deafening. I can only compare it to the thunder of an express train through a rock tunnel."*
164 [deleted] [removed]
3895 0 aslan_chan Well the short answer from the quoted paper where that measurement came from "The channel is more like a high-gradient mountain stream with a very large discharge; which is consistent with the theory that a short mountain river eroded through the divide and reached Malebo Pool, forming the present Lower Congo River. " This is the location where that measurement came from. However reading the rest of it, this is an anomalous depth and the majority of the river co forms to more normal standards and is around 10 to 80m on average.
571 0 exohugh Both [the height profile](https://i.imgur.com/GJWZEKs.png) and the sheer volume of water (42,000 cubic metres per second) give the river an insane amount of erosion power, carving a far deeper channel than, for example, the Amazon which has an [extremely shallow profile](https://media1.britannica.com/eb-media/55/103655-004-81742AE5.gif) over its lower course. (EDIT: In fact the amazon takes around 5000km to drop from 200 meters altitude to sea-level. The Congo does the same in just its final 100km.) The first European to explore [the Livingstone falls](https://en.wikipedia.org/wiki/Livingstone_Falls) (the long, steep stretch above Matadi), Henry Morton Stanley, said of them: *"..the wildest stretch of river that I have ever seen. Take a strip of sea blown over by a hurricane, four miles in length and half a mile in breadth, and a pretty accurate conception of its leaping waves may be obtained. Some of the troughs were 100 yards in length, and from one to the other the mad river plunged. There was first a rush down into the bottom of an immense trough, and then, by its sheer force, the enormous volume would lift itself upward steeply until, gathering itself into a ridge, it suddenly hurled itself 20 or 30 feet straight upward, before rolling down into another trough. If I looked up or down along this angry scene, every interval of 50 or 100 yards of it was marked by wave-towers - their collapse into foam and spray, the mad clash of watery hills, bounding mounds and heaving billows, while the base of either bank, consisting of a long line of piled boulders of massive size, was buried in the tempestuous surf. The roar was tremendous and deafening. I can only compare it to the thunder of an express train through a rock tunnel."*
167 0 [deleted] [removed]