If I plant a garden of vegetables near a busy street, will my vegetables absorb pollution from the vehicles driving by?

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• If I plant a garden of vegetables near a busy street, will my vegetables absorb pollution from the vehicles driving by?
• Could there exist a planet made completely out of water?
• Can a DNA test determine your nationality or origin?
• Is the 7.9 earthquake in Alaska related in any way to the recent eruption of Mount Mayon in the Philippines?
• Why do most earthquakes not cause Tsunamis, but some do?
• What causes drastic temperature changes day to day?
• Is it possible to test a sample of ashes for organic substances, such as human remains?
• If I suspended two large masses in space sufficiently far apart such that they were not moving relative to one another, could I tether them and use the expansion of space between the objects to generate energy?
• What makes the Magnetic South Pole and the Geomagnetic South Pole seperate locations, and why are they seperate?
• In terms of electron excitement, how does black work?
• We can focus and reflect visible light. Can we focus and reflect other wavelengths like x-rays and microwaves?
• What properties of water make it such an efficient radiation shield?
• Why do ice cubes seemingly fuse together when put in a water bath, for example. And how does this occur?
• Is the body able to process 100 % of caloric intake, or is there bypass?
• Why don't we all get Dementia or Alzheimer's? They wouldn't be stopped by natural selection, they happen after middle age, usually
• If different races aren't like different dog breeds, what are they and is "race" even real?
• During ice ages large amounts of water was locked up in the poles. Did this increase the salinity of the water remaining in the oceans?
• Why does oxygen make meat go bad, but not living things?
• Why are there no more big bangs happening?
• Can pinpointing where a headache is on your head help tell you the cause of the headache?
• Why are there relatively few mammal species native to South America, despite the continent's diverse biomes and otherwise lavish wildlife?
• Are there ever actually caves behind waterfalls?

If I plant a garden of vegetables near a busy street, will my vegetables absorb pollution from the vehicles driving by? Posted: 22 Jan 2018 08:37 PM PST I wonder if the plants would have some way to counteract pollutants that are in the air (specifically: vehicle emissions & synthetic, residual dust from vehicle-tire disintegration). Or, If when I go to eat my kale or whatever vegetables... I am actually eating more pollution than I would if I bought it from the store. Thanks submitted by /u/AppreciateYa [link] [comments]

Could there exist a planet made completely out of water? Posted: 22 Jan 2018 07:30 PM PST submitted by /u/nddragoon [link] [comments]

Can a DNA test determine your nationality or origin? Posted: 23 Jan 2018 03:21 AM PST There are various DNA tests which claim that they can track your nationality or origin. How possible is that? If it is, how specific can they be? For instance, can they find if a person is European or African? If the above is true, can they be even more specific? For example can it distinct if a person is Swedish or German? submitted by /u/AresProductions [link] [comments]

Is the 7.9 earthquake in Alaska related in any way to the recent eruption of Mount Mayon in the Philippines? Posted: 23 Jan 2018 05:15 AM PST Title submitted by /u/Milkslinger [link] [comments]

Why do most earthquakes not cause Tsunamis, but some do? Posted: 23 Jan 2018 06:14 AM PST submitted by /u/ProbablyMisinformed [link] [comments]

What causes drastic temperature changes day to day? Posted: 23 Jan 2018 03:55 AM PST The tilt of the earth causes seasons, but why can one day be freezing and the next be mild or warm? submitted by /u/embiggen_Japan [link] [comments]

Is it possible to test a sample of ashes for organic substances, such as human remains? Posted: 22 Jan 2018 07:45 PM PST For example, if a sample of ash was taken with burned wood matter and human remains mixed in, would it be possible to test the ash and come to the conclusion that a human had been burned to death in the area? I realize this is probably a silly question to ask, given that once burned, it is difficult to test for DNA from ashes. So the question is more can it be identified as human remains than can DNA be found. I'm trying to write something realistic about this in a story of mine, the scenario being some people were murdered by magic flames that burned them to ashes instantly and an investigative force is testing the ash to see what it is comprised of. submitted by /u/rubyhardflames [link] [comments]

If I suspended two large masses in space sufficiently far apart such that they were not moving relative to one another, could I tether them and use the expansion of space between the objects to generate energy? Posted: 22 Jan 2018 03:48 PM PST If two large objects were tethered to one another and a generator were attached to a string in the middle could you accelerate the two objects towards one another as space expands in between them and use this acceleration to generate energy from the work done? Where does this energy come from and is it dark energy? How much energy could you make with say, 1000kg objects 1 light-year apart? 1000 light-years? (I'm not sure at what scale the expansion of space starts beating the gravitational pull) submitted by /u/RadiatorSam [link] [comments]

What makes the Magnetic South Pole and the Geomagnetic South Pole seperate locations, and why are they seperate? Posted: 22 Jan 2018 04:17 PM PST Was watching CGPGrey's video Who Owns Antarctica? (Bizarre Borders Part 3) and noticed that when he made a quick mention that there was more than one "South Pole", there was a Magnetic South Pole, and a Geomagnetic South Pole. What's the difference between Magnetic and Geomagnetic, and why are the two in seperate locations? submitted by /u/MHMRahman [link] [comments]

In terms of electron excitement, how does black work? Posted: 23 Jan 2018 04:56 AM PST The past two lessons in my A Level Chemistry course have involved the excitement of electrons in d-orbitals to a higher energy level and then emitting a wavelength of visible light, resulting in us seeing colours in transition metal solutions, but how does black work? My thought was that electrons don't get excited enough to get to a higher energy level to emit a wavelength of visible light. Sorry if wording is terrible, I'm not really sure how to phrase this. submitted by /u/MatthewWSG [link] [comments]

We can focus and reflect visible light. Can we focus and reflect other wavelengths like x-rays and microwaves? Posted: 22 Jan 2018 10:39 PM PST What sort of material can be used to focus and reflect wavelengths that are much longer and shorter than the visible spectrum? submitted by /u/photolouis [link] [comments]

What properties of water make it such an efficient radiation shield? Posted: 22 Jan 2018 03:06 PM PST I've seen pictures of nuclear plants using pools of water as a radiation shield, why is that? Ex. https://www.bcm.edu/bodycomplab/Radprimer/radpenetration.htm submitted by /u/RippinDankBonks [link] [comments]

Why do ice cubes seemingly fuse together when put in a water bath, for example. And how does this occur? Posted: 22 Jan 2018 10:25 PM PST submitted by /u/THEXTERBEXTERALNIGHT [link] [comments]

Is the body able to process 100 % of caloric intake, or is there bypass? Posted: 22 Jan 2018 09:45 PM PST submitted by /u/commandercody209 [link] [comments]

Why don't we all get Dementia or Alzheimer's? They wouldn't be stopped by natural selection, they happen after middle age, usually Posted: 22 Jan 2018 05:43 PM PST submitted by /u/evanroden [link] [comments]

If different races aren't like different dog breeds, what are they and is "race" even real? Posted: 22 Jan 2018 02:17 PM PST submitted by /u/universal-cat [link] [comments]

During ice ages large amounts of water was locked up in the poles. Did this increase the salinity of the water remaining in the oceans? Posted: 22 Jan 2018 10:26 PM PST Pretty much just the title. submitted by /u/Elephantinspector [link] [comments]

Why does oxygen make meat go bad, but not living things? Posted: 22 Jan 2018 07:52 PM PST submitted by /u/Puzzlebark [link] [comments]

Why are there no more big bangs happening? Posted: 22 Jan 2018 08:31 PM PST submitted by /u/igotgroped [link] [comments]

Can pinpointing where a headache is on your head help tell you the cause of the headache? Posted: 22 Jan 2018 07:57 AM PST submitted by /u/mynamesbartsimpson [link] [comments]

Why are there relatively few mammal species native to South America, despite the continent's diverse biomes and otherwise lavish wildlife? Posted: 22 Jan 2018 04:33 PM PST submitted by /u/SagaCult [link] [comments]

Are there ever actually caves behind waterfalls? Posted: 22 Jan 2018 07:33 AM PST If there's a waterfall in a video game, chances are that there's a secret behind it. How often does this actually happen? I imagine the running water would erode the rock and fill the cave. submitted by /u/MikeOShay [link] [comments]

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Ethiopia is building the largest hydroelectric power plant in Africa, Egypt opposes the dam which it believes will reduce the amount of water that it gets, Ethiopia asserts that the dam will in fact increase water flow to Egypt by reducing evaporation on Egypt's Lake Nasser, How so?

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• Ethiopia is building the largest hydroelectric power plant in Africa, Egypt opposes the dam which it believes will reduce the amount of water that it gets, Ethiopia asserts that the dam will in fact increase water flow to Egypt by reducing evaporation on Egypt's Lake Nasser, How so?
• AskScience AMA Series: I am a biologist studying invertebrate vision, AMA!
• What exactly do they do with your body when you die, if you're an organ donor?
• Simplified explanations of Sub-refraction and Super-refraction?
• Has Alzheimer's ever been observed in animals?
• Do plants require constant nutrition or do they eat in cycles?
• If the Universe contains everything in exist but is constantly expanding, what exactly is it expanding into and can we exit the Universe?
• Why is the weak force considered to be a force?
• Why do scientists believe that type S seismic waves reappear in the inner nucleus?
• How do zookeepers avoid accidentally domesticating animals in zoos?
• How come water does not flow deep into our ear canal?
• Topologically, how many holes does a t-shirt have?
• 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?
• How does quantum mechanics explain covalent bonds?
• What is the difference between thermal conductivity and thermal conductance?
• What percentage of the light that hits your retina is actually absorbed by it?
• Can we detect absolute zero black bodies with our current telescopes?
• If planets orbit the stars, satellites (moons) orbit planets, can there be something natural also orbiting the moons? How many iterations are possible? Do we know of any?
• How does letting a dish soak with soap and water work?
• Why are long things flexible while short pieces of the same object are rigid?
• 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?

Ethiopia is building the largest hydroelectric power plant in Africa, Egypt opposes the dam which it believes will reduce the amount of water that it gets, Ethiopia asserts that the dam will in fact increase water flow to Egypt by reducing evaporation on Egypt's Lake Nasser, How so? Posted: 22 Jan 2018 03:42 AM PST Egypt's dependency on the Nile in one picture Sisi: Egypt Does Not Want War with Ethiopia, Sudan Cairo taps World Bank to mediate Ethiopian dam dispute Ethiopia leader rejects call for World Bank arbitration in dam dispute submitted by /u/Random-Noise [link] [comments]

AskScience AMA Series: I am a biologist studying invertebrate vision, AMA! Posted: 22 Jan 2018 04:14 AM PST My name is Daniel Zurek, I'm a biologist studying invertebrate vision. I investigate how vision-guided behavior and visual system design evolve to match ecological demands, and am particularly interested in the dynamic natural context in which sensory information is gathered. I'm currently based at the University of Cincinnati, after studying in Germany, Australia, and postdocs at Cornell and U Pitt. My current research revolves around the mechanics and evolution of color vision and colorful displays in jumping spiders. I've also studied locomotory attachment devices in insects, and worked with tiger beetles, extremely fast predators that run so fast their eyes can't keep up! My research has been covered by Science, Nature, National Geographic, and a host of major newspapers. Important research questions aside, I just love animals that do cool stuff! I'm an avid macro shooter/filmer and enjoy science communication. I've also spent a lot of time thinking about science crowdfunding, and have worked as a consultant and grant officer for Experiment.com. More about my research at danielzurek.com A NatGeo writeup about one of my research topics: https://news.nationalgeographic.com/2015/05/150518-jumping-spider-color-vision-mating-animals-science/. I'll be on at 6 PM ET (23 UT), ask me anything! submitted by /u/AskScienceModerator [link] [comments]

What exactly do they do with your body when you die, if you're an organ donor? Posted: 21 Jan 2018 03:23 PM PST submitted by /u/MisfitToSociety [link] [comments]

Simplified explanations of Sub-refraction and Super-refraction? Posted: 22 Jan 2018 03:45 AM PST So I understand how they both effect radar and radio waves but I don't understand exactly why. I know a trapping layer happens because of temperature inversion, but what makes a Super-refractive and Sub-refractive layer? Could someone explain it as simply as possible? submitted by /u/Montrepido [link] [comments]

Has Alzheimer's ever been observed in animals? Posted: 21 Jan 2018 12:00 PM PST submitted by /u/SilverMars [link] [comments]

Do plants require constant nutrition or do they eat in cycles? Posted: 21 Jan 2018 03:15 PM PST submitted by /u/traw_dog [link] [comments]

If the Universe contains everything in exist but is constantly expanding, what exactly is it expanding into and can we exit the Universe? Posted: 21 Jan 2018 07:07 PM PST submitted by /u/Rds240 [link] [comments]

Why is the weak force considered to be a force? Posted: 21 Jan 2018 11:33 PM PST The electromagnetic and strong forces (and gravity I guess) pushes and pulls and so it it is intuitive that they are called forces. But the weak force does not push or pull as far as I understand it. Is it just a term arising from convention since the fundamental forces arises from symmetries in guage theory? submitted by /u/BeforeTime [link] [comments]

Why do scientists believe that type S seismic waves reappear in the inner nucleus? Posted: 22 Jan 2018 04:13 AM PST submitted by /u/ThePBrit [link] [comments]

How do zookeepers avoid accidentally domesticating animals in zoos? Posted: 21 Jan 2018 02:36 PM PST submitted by /u/zeropont [link] [comments]

How come water does not flow deep into our ear canal? Posted: 21 Jan 2018 12:07 PM PST submitted by /u/xrossfader [link] [comments]

Topologically, how many holes does a t-shirt have? Posted: 22 Jan 2018 02:17 AM PST Does it have one hole or two holes? submitted by /u/Artyflex [link] [comments]

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? Posted: 21 Jan 2018 03:41 PM PST 0 and 1/120 being the zeta function at -2 and -3? What about 1+1+1+... being replaced by ζ(0)=-1/2? Have these ones ever come up in some useful application? submitted by /u/Dashkins [link] [comments]

How does quantum mechanics explain covalent bonds? Posted: 21 Jan 2018 08:42 AM PST I am studying physics in university right now and my professor mentioned this in class but did not elaborate much. I was wondering how QM explains why atoms covalently bond (need the answer in very layman terms haha) and what was previously thought before quantum mechanics came around? Thanks! :) submitted by /u/comrade53 [link] [comments]

What is the difference between thermal conductivity and thermal conductance? Posted: 22 Jan 2018 12:50 AM PST I've read a few definitions but the two appears to be the same, although the unit for thermal conductivity is written as W/mK while thermal conductance is W/m2 K submitted by /u/IAmTryingToStudy [link] [comments]

What percentage of the light that hits your retina is actually absorbed by it? Posted: 21 Jan 2018 12:54 PM PST submitted by /u/XDSS2002 [link] [comments]

Can we detect absolute zero black bodies with our current telescopes? Posted: 21 Jan 2018 11:10 PM PST A black body is, "an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. ... The radiation is emitted according to Planck's law, meaning that it has a spectrum that is determined by the temperature alone, not by the body's shape or composition."[1] If I'm understanding correctly, a black body at absolute zero would emit no radiation at all. Is this related to antimatter? Could this be where unknown elements have been hiding? https://en.wikipedia.org/wiki/Black_body[1] http://astronomy.swin.edu.au/cosmos/B/Blackbody+Radiation https://www.youtube.com/watch?v=AaFdCvnV8PM submitted by /u/Player2QQ [link] [comments]

If planets orbit the stars, satellites (moons) orbit planets, can there be something natural also orbiting the moons? How many iterations are possible? Do we know of any? Posted: 21 Jan 2018 11:02 PM PST Is there anything like a moon of a moon? submitted by /u/pabra [link] [comments]

How does letting a dish soak with soap and water work? Posted: 21 Jan 2018 02:28 PM PST submitted by /u/SirGentlemanOstrich [link] [comments]

Why are long things flexible while short pieces of the same object are rigid? Posted: 21 Jan 2018 10:32 AM PST submitted by /u/Dman2244 [link] [comments]

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? Posted: 21 Jan 2018 11:43 AM PST Is there no sort of penalty for carrying around all that non-coding DNA? submitted by /u/feed_me_haribo [link] [comments]

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Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

What exactly is happening to your (nerves?) when circulation gets cut off and you start to tingle?

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• What exactly is happening to your (nerves?) when circulation gets cut off and you start to tingle?
• At what point is a particle too small to cast a shadow?
• How do most wild animals die?
• 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 ?
• Is there a way to measure sharpness - like a scale of sharpness? Thank you
• What prevents people in the United States from contacting Malaria from mosquito bites?
• 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?
• 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?
• Why does tungsten (and the elements around it) have a high melting point?
• What is the Furry hypothesis, in relation to quantum superposition, and why is it incorrect?
• How is a breathalyzer a useful metric when testing blood alcohol content?
• What is the aspect ratio of a nuclear reactor and why does it matter?
• Can gases/liquids be contained within a magnetic field?
• Why will your eyes hurt looking at the sun, but not at a lightning strike?
• Is there a limit to the number of photons a human iris/brain can capture and process?
• Why does diabetes causes kidney damage?
• Does the age of sperm affect the offspring it creates?
• Do extroverts comment more often than introverts on Reddit?
• Why are converging-diverging nozzles preferred over converging only nozzles?

What exactly is happening to your (nerves?) when circulation gets cut off and you start to tingle? Posted: 21 Jan 2018 06:10 AM PST submitted by /u/whirlpoohl [link] [comments]

At what point is a particle too small to cast a shadow? Posted: 20 Jan 2018 08:38 AM PST submitted by /u/Brenden2016 [link] [comments]

How do most wild animals die? Posted: 20 Jan 2018 07:08 PM PST Setting aside insects and microscopic organisms, how does the average, say, gazelle die? Killed by a predator? Disease (what kind of diseases, cancer?)? Accident? Or something else? submitted by /u/foxwilliam [link] [comments]

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 ? Posted: 20 Jan 2018 06:56 PM PST submitted by /u/Wrest216 [link] [comments]

Is there a way to measure sharpness - like a scale of sharpness? Thank you Posted: 20 Jan 2018 01:48 PM PST submitted by /u/steelwoolhelmet [link] [comments]

What prevents people in the United States from contacting Malaria from mosquito bites? Posted: 20 Jan 2018 07:07 PM PST I read about the malaria eradication project from the 1940's, but how does lowering mosquito populations alone prevent the disease from spreading? Sorry if this seems like a stupid question. submitted by /u/powerofsoulphoto [link] [comments]

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? Posted: 20 Jan 2018 03:51 PM PST submitted by /u/Jayuke [link] [comments]

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? Posted: 20 Jan 2018 08:16 PM PST According to this article, individual electrons move slower than a snail, and the rapid speed of electricity is because "electrons are packed in so tightly that even a small movement will travel down the wire from electron to electron at an impressive speed, letting you turn on the lights without having to wait for electrons to travel the whole way there." However, the speed of sound in copper is about 4.6 km/s, yet electricity can travel up to 2/3 the speed of light, about 200,000 km/s. I always thought that propagation due to matter bumping into each other (much like sound waves in an atmosphere) cannot travel faster than the speed of sound in that medium, since the speed of sound is essentially a measurement of how quick a material is to react to, and propagate, compression. submitted by /u/GeneReddit123 [link] [comments]

Why does tungsten (and the elements around it) have a high melting point? Posted: 20 Jan 2018 04:22 PM PST Why does tungsten and the elements around it have a high melting point? My understanding of chemistry is quite good, I understand everything for a first or second year chemistry university student. I also understand harder concepts like how special relativity is involved in the lathinade contraction. If you include anything of extremely high level in your answer, can you please explain it thoroughly or provide a link. submitted by /u/sabikewl [link] [comments]

What is the Furry hypothesis, in relation to quantum superposition, and why is it incorrect? Posted: 20 Jan 2018 01:17 PM PST More specifically, I've come across an example for a hypothetical physics experiment that highlights an aspect of quantum superposition (the book makes short reference to the Furry hypothesis but doesn't really go into detail with it). In the experiment, a source sends out a pair of entangled photons to two detectors that measure the incoming light. Both detectors are equidistant from the source such that they should receive their individual photon simultaneously. Each detector is equipped with a controllable polarized beam splitter (with three potential positions: +30, 0, -30 degrees) that separates the incoming light into vertically and horizontally polarized light. When both detectors have the same polarization in their beam splitters, the results measured by the detectors are correlated. The text first suggests the following (incorrect) hypothesis: if both polarizers have the same orientation, the detectors return the same result. If the polarizers have different orientations, the detectors don't get the same result. Is this the Furry hypothesis or just a common thought experiment to introduce superposition? submitted by /u/ICanBeHandyToo [link] [comments]

How is a breathalyzer a useful metric when testing blood alcohol content? Posted: 20 Jan 2018 08:35 AM PST submitted by /u/sswitch404 [link] [comments]

What is the aspect ratio of a nuclear reactor and why does it matter? Posted: 20 Jan 2018 08:16 AM PST I've been reading about nuclear fusion and its limitations and a word that keeps coming up is the "aspect ratio". I believe it has something to do with the size of the area confined by the magnets but I'm not exactly sure because googling it is bringing me to journals I can't really understand... According to Wikipedia the aspect ratio is "the limiting factor in reducing the beta size" which has confused me even more because I thought beta was supposed to be as big as possible in these reactors? Although there's no sites so not really sure if that statement was accurate. Anyhow if anyone had an information on this it would be greatly appreciated :-) submitted by /u/Grace_96 [link] [comments]

Can gases/liquids be contained within a magnetic field? Posted: 20 Jan 2018 02:20 PM PST I am curious about this. Anyone know if this is possible? submitted by /u/PoorKidSporeKid [link] [comments]

Why will your eyes hurt looking at the sun, but not at a lightning strike? Posted: 20 Jan 2018 08:22 AM PST submitted by /u/websturn [link] [comments]

Is there a limit to the number of photons a human iris/brain can capture and process? Posted: 20 Jan 2018 08:42 AM PST If I stand at the top of a hill I can see for miles. I can make out individual trees, buildings, clouds, fences, animals and anything else In a mind boggling volume. Is there a limit that i can take in? Am I thinking the wrong way about it again? submitted by /u/jebus3rd [link] [comments]

Why does diabetes causes kidney damage? Posted: 20 Jan 2018 07:35 PM PST submitted by /u/zzzdylan [link] [comments]

Does the age of sperm affect the offspring it creates? Posted: 20 Jan 2018 10:27 AM PST NOT to be confused with the age of the father, or how the age of the sperm affects its the fertility, I would like to know if the age of the sperm has any effect on the offspring it creates. Specifically in humans. I have a hard time imagining there is even reliable research that has been conducted on this question, but it's something I've long been curious about. Logically it seems to me that there would be an optimal window after the most recent ejaculation to conceive the healthiest child. submitted by /u/Barrytheuncool [link] [comments]

Do extroverts comment more often than introverts on Reddit? Posted: 20 Jan 2018 03:10 PM PST More generally, I am interested whether there is any good scientific research on personality types (Big 5) and correlations with social media usage and leaving comments. I could imagine it going either way, i.e., people who talk more in normal life also leave more comments online, or oppositely, people who feel inhibited in normal life make up for it by commenting more online. submitted by /u/Memeophile [link] [comments]

Why are converging-diverging nozzles preferred over converging only nozzles? Posted: 20 Jan 2018 08:23 AM PST This is a general fluid mechanics question. I know that converging-diverging nozzles are preferable to converging only, especially in aerospace applications. I just can't remember the specific mechanisms as to why. In addition, can you have Mach greater than 1 in a converging nozzle? If anyone can provide some further explanations, I would greatly appreciate it! submitted by /u/inchoatentropy [link] [comments]

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