Should I trust the spedometer of my car or the speed stated by my GPS? Which one is correct and even more important, which one do the cops use?

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• Should I trust the spedometer of my car or the speed stated by my GPS? Which one is correct and even more important, which one do the cops use?
• Can someone explain why Saturn has a hexagon at its uppermost pole?
• Why does the water exiting the nozzle of a water bottle rocket create waves?
• What actually kills us from lack of sleep?
• Are there any desert regions that are currently becoming wetter / greener?
• what determines the perceived frequency of tinnitus?
• How does our handwriting develop?
• We have just started experimenting with Haptics and technology that expresses the feelings of touch recently. And we have had visual and auditory media for decades, what is the likelyhood "Smell-o-vision" technology or even taste?
• Does a cat’s vision change when their pupils are narrow slits vs. huge ovals that take up the entire area of the eye?
• Do all birds lay eggs consistently like chickens do? And if so how do they know which ones are fertilized (and therefore should be protected)?
• What happens to the material that's eaten away by acid?
• How does a ribosome know to traffic a protein with a hydrophobic signal sequence and signal recognition particle to the ER vs. the plasma membrane?
• How do different anti particles interact? This post is going to have a bunch of different questions, so sorry for the confusion
• Why is the Atacama desert so dry?
• What's the theoretical size limit of a star?
• Do quantum particles "collapse" the wave function of other quantum particles?
• Why didn’t Pre-Columbian North America have great civilizations like their Mesoamerican and Andean counterparts?
• Do battery in new unpack electronic degrade over time ?
• Does octave equivalency show any sort of property in physics, or is it a completely perceptual phenomenon?
• How do we distinguish gravity waves?
• What is the chemical composition of pre-ejaculate?
• Did Earth increase the speed of its revolution at any point in its history?
• Before the modern world, what caused the Earth's temperature to regularly vacillate 15 degrees (C)?

Should I trust the spedometer of my car or the speed stated by my GPS? Which one is correct and even more important, which one do the cops use? Posted: 28 Apr 2019 11:43 PM PDT submitted by /u/DoNotLookAtMyUsernam [link] [comments]

Can someone explain why Saturn has a hexagon at its uppermost pole? Posted: 28 Apr 2019 06:18 PM PDT I saw this image on Reddit and am completely dumbfounded. Thanks! submitted by /u/SaltHealer [link] [comments]

Why does the water exiting the nozzle of a water bottle rocket create waves? Posted: 28 Apr 2019 07:06 AM PDT So my classmate and I created a water bottle rocket and have decided to record it with a 60fps camera zoomed to the rocket itself. From what we can see in this frame, there seems to be some sort of oscillation in the water being pushed out of the nozzle. Why does this occur? ​ Edit 1: Will be uploading launch video in a few hours. ​ Edit 2: Video submitted by /u/BuckyCheese [link] [comments]

What actually kills us from lack of sleep? Posted: 29 Apr 2019 12:12 AM PDT Sleep deprivation for a long enough period of time is capable of killing people. We know sleep is necessary to live, but do we know why that's the case? What actually causes you to die if you're so severely sleep deprived that you reach that point? submitted by /u/CanadianCartman [link] [comments]

Are there any desert regions that are currently becoming wetter / greener? Posted: 28 Apr 2019 12:59 PM PDT submitted by /u/I_up_voted_u [link] [comments]

what determines the perceived frequency of tinnitus? Posted: 28 Apr 2019 12:51 PM PDT submitted by /u/gravifox [link] [comments]

How does our handwriting develop? Posted: 28 Apr 2019 02:34 PM PDT submitted by /u/jamesbadison [link] [comments]

We have just started experimenting with Haptics and technology that expresses the feelings of touch recently. And we have had visual and auditory media for decades, what is the likelyhood "Smell-o-vision" technology or even taste? Posted: 28 Apr 2019 08:58 PM PDT How likely are we to start simulating the other senses? It seems like itd be exceedingly complex, but so does television until you realize its just 3 colors and that our speakers are just a vibrating diapgram. But things like smell and taste arent exactly on the same level. Id assume that smell and taste are just uniqe things about life and not fundamental concepts of reality. But im usually wrong about the difficulty of things. submitted by /u/OCHNCaPKSNaClMg_Yo [link] [comments]

Does a cat’s vision change when their pupils are narrow slits vs. huge ovals that take up the entire area of the eye? Posted: 28 Apr 2019 01:38 PM PDT submitted by /u/Mfstaunc [link] [comments]

Do all birds lay eggs consistently like chickens do? And if so how do they know which ones are fertilized (and therefore should be protected)? Posted: 28 Apr 2019 01:05 PM PDT submitted by /u/todd282 [link] [comments]

What happens to the material that's eaten away by acid? Posted: 28 Apr 2019 03:19 PM PDT submitted by /u/TheLifeOfEricAu [link] [comments]

How does a ribosome know to traffic a protein with a hydrophobic signal sequence and signal recognition particle to the ER vs. the plasma membrane? Posted: 28 Apr 2019 05:34 PM PDT I have always assumed that some SRP receptors make it to the Golgi/plasma membrane during forward transport. If they are degraded, how are they selectively chosen? Is this assumption wrong? Or is this just a matter of proximity? Thanks! submitted by /u/Dr_Brooklyn [link] [comments]

How do different anti particles interact? This post is going to have a bunch of different questions, so sorry for the confusion Posted: 28 Apr 2019 10:53 AM PDT 1) is it possible for there to be, somewhere in the universe, planets made of antiparticles? I know that theoretically half matter half antimatter was created, but since our solar system exists, could there are ossicle be an "inverse" with antimatter? 2) I recently read an article about neutrinos which said that neutrinos might be their own anti particles. If (hypothetically) that was the case, could you create energy by only making neutrinos and making them collide? 3) what are the "unwanted emissions" when matter and anti matter collide ( the equivalent of radiation for nuclear fusion, CO2 for fossil fuels, etc...)? 4) I saw a video about strange quarks and strange matter and how( in theory) everything it comes in contact with also turns to strange matter. How does that process work? Sorry that I have so many questions! submitted by /u/pongo-the-kitty [link] [comments]

Why is the Atacama desert so dry? Posted: 28 Apr 2019 12:51 PM PDT submitted by /u/Dragonquack [link] [comments]

What's the theoretical size limit of a star? Posted: 28 Apr 2019 04:35 PM PDT So I know that our sun is a third generation star. And that stars used to be more massive. So if I went back let's say 11 billion years ago what would the average mass of a star be? And what would be the behemoths of that generation? submitted by /u/raveallnight [link] [comments]

Do quantum particles "collapse" the wave function of other quantum particles? Posted: 28 Apr 2019 04:41 PM PDT submitted by /u/fluorescentadolesent [link] [comments]

Why didn’t Pre-Columbian North America have great civilizations like their Mesoamerican and Andean counterparts? Posted: 28 Apr 2019 04:30 PM PDT submitted by /u/Dragonquack [link] [comments]

Do battery in new unpack electronic degrade over time ? Posted: 28 Apr 2019 12:32 PM PDT submitted by /u/sam3555 [link] [comments]

Does octave equivalency show any sort of property in physics, or is it a completely perceptual phenomenon? Posted: 28 Apr 2019 08:43 AM PDT submitted by /u/VitorMaGon [link] [comments]

How do we distinguish gravity waves? Posted: 28 Apr 2019 08:29 AM PDT For instances how do we distinguish between them from a collision of neutron stars or a collision of black holes? submitted by /u/QuantumPhyZ [link] [comments]

What is the chemical composition of pre-ejaculate? Posted: 28 Apr 2019 07:20 AM PDT There's a ton of research out there about whether or not pre-ejaculate from the Cowper's Gland contains sperm, but I can't find a single article (scholarly or otherwise) that actually breaks down the chemical composition of pre-cum. Searching in this sub, I see this question has been asked only once 10 months ago and didn't get a response. Can someone please tell me or link me to an article that breaks down the composition? Thank you. submitted by /u/indexicalization [link] [comments]

Did Earth increase the speed of its revolution at any point in its history? Posted: 28 Apr 2019 07:16 AM PDT Someone recently told me that the meteor that caused the mass extinction and the gulf gulf of Mexico sped up the revolution of the earth causing days to be shorter. He also claimed that impact is what caused the formation of the moon as we see it today. Is any of this true or even plausible? submitted by /u/Reykjavik2017 [link] [comments]

Before the modern world, what caused the Earth's temperature to regularly vacillate 15 degrees (C)? Posted: 28 Apr 2019 07:47 AM PDT I'm speaking to this graph here: https://i.imgur.com/HpVkWti.png You can see that the earth is rather steadily moving between periods of warm and cold. What were the factors that contributed to the climate shifts that caused these dramatic changes in both directions at what looks like regular intervals? submitted by /u/wreathe_everyst [link] [comments]

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During timeperiods with more oxygen in the atmosphere, did fires burn faster/hotter?

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• During timeperiods with more oxygen in the atmosphere, did fires burn faster/hotter?
• Can you have a nucleus that is orbited by muons instead of electrons? If so, what similarities/differences would the atom have chemically and physically?
• How do dolphins and whales fall asleep without drowning?
• Do insects sleep, or do they just stay up forever?
• What makes a solid soft or hard?
• Are there specific areas where meteorites are more likely to fall or is it completely random?
• What would happen, if you create a perfect vacuum inside a stable container?
• Are there any species that humans are poisonous to?
• When did STDs develop?
• How exactly is it possible to see the expansion of the universe?
• Can cows and other life stock be inbred? And if so, are inbred life stock harmful for consumption?
• How does an egg/zygote get oxygen pre-uterine implantation?

During timeperiods with more oxygen in the atmosphere, did fires burn faster/hotter? Posted: 27 Apr 2019 10:24 AM PDT Couldnt find it on google submitted by /u/ShivaEqualOfHeaven [link] [comments]

Can you have a nucleus that is orbited by muons instead of electrons? If so, what similarities/differences would the atom have chemically and physically? Posted: 27 Apr 2019 03:20 PM PDT submitted by /u/Y-Woo [link] [comments]

How do dolphins and whales fall asleep without drowning? Posted: 27 Apr 2019 05:13 PM PDT How does it work? submitted by /u/ThisKid31 [link] [comments]

Do insects sleep, or do they just stay up forever? Posted: 27 Apr 2019 06:46 AM PDT submitted by /u/Childish_Jimbino_ [link] [comments]

What makes a solid soft or hard? Posted: 27 Apr 2019 11:14 AM PDT submitted by /u/DrBublu [link] [comments]

Are there specific areas where meteorites are more likely to fall or is it completely random? Posted: 27 Apr 2019 10:06 AM PDT submitted by /u/kevinzyvina [link] [comments]

What would happen, if you create a perfect vacuum inside a stable container? Posted: 27 Apr 2019 10:12 AM PDT Would the vacuum be strong enough to tear single molecules out of the container walls, or wouldn't it even be possible to create a container strong enough, or wouldn't anything cool happen at all? (except for the price you might get for creating a perfect vacuum..) submitted by /u/schnuserr [link] [comments]

Are there any species that humans are poisonous to? Posted: 26 Apr 2019 08:07 PM PDT submitted by /u/acarhr [link] [comments]

When did STDs develop? Posted: 26 Apr 2019 08:46 PM PDT At what point in human history did STDs develop? Did Neanderthals have STDs? Has STDs shaped our development as a species? submitted by /u/jigmest [link] [comments]

How exactly is it possible to see the expansion of the universe? Posted: 26 Apr 2019 06:11 PM PDT submitted by /u/BobbyBrewski [link] [comments]

Can cows and other life stock be inbred? And if so, are inbred life stock harmful for consumption? Posted: 26 Apr 2019 05:49 PM PDT submitted by /u/Nicee12 [link] [comments]

How does an egg/zygote get oxygen pre-uterine implantation? Posted: 26 Apr 2019 04:32 PM PDT submitted by /u/redditless [link] [comments]

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

In light of the recent first Marsquake recorded, what causes Marsquakes? Does Mars have tectonic plates like Earth?

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• In light of the recent first Marsquake recorded, what causes Marsquakes? Does Mars have tectonic plates like Earth?
• Why don't planets twinkle as stars do? My understanding is that reflected light is polarised, but how it that so, and why does that make the light not twinkle passing through the atmosphere?
• “23559” listed as makeup ingredient, what is it?
• If light is produced by the release of photons when electrons return to stable energy levels, why do blackbody objects emit light over a continuous and wide spectrum?
• The 2011 earthquake in Japan shortened the length of the day by 1.8 microseconds. How was this measured?
• When the Suez Canal was dug, how were the ecosystems of the Mediterranean and Red Sea affected?
• How does browning of meat during the cooking process occur without any listed sugar?
• Where are our memories stored?
• How do you determine if a liquid that exists on Mars or Europa is H2O molecules?
• Do some microorganisms live in cloud formations?
• I get how cosmological redshift works, but how do we know what the original wavelength of that light was?
• Is it reasonable all isotopes heaver than Hydrogen-1 will eventually decay?
• How do you prove the existence of ‘black holes’ ?
• Does transmission through various corrective lens materials, e.g. contacts and glasses affect the spectral distribution transmitted?
• How are new antibiotics created and tested?
• Can satallites take photos of planets outside of our solar system?
• How was the world map created?
• I’ve read that plastic slowly decomposes over about 1000 years. What exactly causes it to decompose over such a long period of time? Why doesn’t it just never decompose?
• What is happening on a cellular level when we get dry skin?

In light of the recent first Marsquake recorded, what causes Marsquakes? Does Mars have tectonic plates like Earth? Posted: 27 Apr 2019 12:18 AM PDT submitted by /u/tajsmum [link] [comments]

Why don't planets twinkle as stars do? My understanding is that reflected light is polarised, but how it that so, and why does that make the light not twinkle passing through the atmosphere? Posted: 26 Apr 2019 08:35 AM PDT submitted by /u/hazysummersky [link] [comments]

“23559” listed as makeup ingredient, what is it? Posted: 26 Apr 2019 04:10 PM PDT Not sure if this is the right place but it's worth a shot, I thought chemistry was the most appropriate flair so I hope that's right. Obligatory apologies for mobile. So I had a weird reaction to my makeup remover so I'm going through my different products' ingredients trying to figure out what did it. The "good" makeup remover I'm comparing the "bad" one to has the number 23559 listed as the last ingredient with no chemical name before it, so I'm confused. There's a comma before it so it's not associated with the previous ingredient (which is "Red 40 (CI 16035)" if that matters). I've tried googling stuff but I came up short so I figured I'd ask you guys. Thanks in advance! Edit: I found a link with the ingredients listed & it has 23559 listed as the last ingredient just like the bottle. submitted by /u/crave-perspective [link] [comments]

If light is produced by the release of photons when electrons return to stable energy levels, why do blackbody objects emit light over a continuous and wide spectrum? Posted: 27 Apr 2019 06:52 AM PDT Doing some light reading on the Internet and was reading up on black body objects and why objects glow when they heat. I was told that photons are released through the excitement of electrons, and then you have things with emission spectrums and so on. This implies that the spectrum should only have very specific wavelengths of light. However, I have looked at spectrum graphs of objects such as incandescent lightbulbs and found that they emit light over a continuous spectrum of various intensities that extend over a significant range of wavelengths. Why is this so? Why are the emission spectrum wavelengths not emitted? What is it in the function of blackbody objects that make them emit light across a constant stream of wavelengths? submitted by /u/SolarSupport [link] [comments]

The 2011 earthquake in Japan shortened the length of the day by 1.8 microseconds. How was this measured? Posted: 26 Apr 2019 04:35 PM PDT submitted by /u/EnUnLugarDeLaMancha [link] [comments]

When the Suez Canal was dug, how were the ecosystems of the Mediterranean and Red Sea affected? Posted: 26 Apr 2019 12:56 PM PDT submitted by /u/RopyRaj [link] [comments]

How does browning of meat during the cooking process occur without any listed sugar? Posted: 27 Apr 2019 04:40 AM PDT I was under the impression, that the brown color of the sear of e.g. a steak comes mostly from the Maillard reaction. Wikipedia tells me, that the Maillard reactions requires both proteins and sugars to occur. While theres obviously plenty of protein in any meat, the label always says '0g carbohydrates'. I have also read, that red meat contains the sugar Neu5Gc (that ones a topic for another day). ​ So my question(s) would be: Are trace amounts of sugars (too little for the label) enough to facilitate the Maillard reaction? Does the label not have to list "special" carbohydrates other than the more well knowns, like sucrose, fructose etc etc.? submitted by /u/Morczubel [link] [comments]

Where are our memories stored? Posted: 26 Apr 2019 11:07 PM PDT submitted by /u/JudeMarshal [link] [comments]

How do you determine if a liquid that exists on Mars or Europa is H2O molecules? Posted: 26 Apr 2019 07:47 PM PDT It's not like scientists brought a sample to Earth and analyzed it, but why can they say it's water? submitted by /u/HanGUl95 [link] [comments]

Do some microorganisms live in cloud formations? Posted: 26 Apr 2019 02:50 PM PDT submitted by /u/GERALTGERALTGERALTGE [link] [comments]

I get how cosmological redshift works, but how do we know what the original wavelength of that light was? Posted: 26 Apr 2019 01:06 PM PDT I get that astronomers use redshift to measure distance to galaxies, and kind of understand how it could happen. But how do we know what the original wavelength of that light was to measure how much it's shifted? submitted by /u/ChanceState [link] [comments]

Is it reasonable all isotopes heaver than Hydrogen-1 will eventually decay? Posted: 26 Apr 2019 12:41 PM PDT The recent announcement about Xenon-124 decaying with a gargantuan half life has me wondering if all elements are unstable, given infinite time. It was explained to me in chemistry that particles seek the lowest possible energy state. How far can that go? Iron? Hydrogen? Smaller? submitted by /u/sctprog [link] [comments]

How do you prove the existence of ‘black holes’ ? Posted: 26 Apr 2019 09:30 PM PDT submitted by /u/amand79 [link] [comments]

Does transmission through various corrective lens materials, e.g. contacts and glasses affect the spectral distribution transmitted? Posted: 26 Apr 2019 08:22 AM PDT Or do they design around this to achieve a relatively "flat" transmission curve? I can only find info about the percent of total light transmitted compared to the refractive index, so maybe I just don't have the right google terms. And of course there's loads of info about sunglasses but that's not what I am interested in submitted by /u/StraightTooth [link] [comments]

How are new antibiotics created and tested? Posted: 26 Apr 2019 09:24 AM PDT submitted by /u/Inumelll [link] [comments]

Can satallites take photos of planets outside of our solar system? Posted: 25 Apr 2019 10:08 PM PDT I'm typing this on my phone at 1 am. So please excuse me if I dont make sense or I mess up somewhere. Hi, so with the recent photo of the black hole it got me thinking. If we can take a photo of a black hole that is a million light years away, why cant we take photos of planet surfaces? I looked up how planets can sustain life, and I was told that up to 40 million planets CAN inhabit life. And that 11 million of them are very closely related to Earth. If our satallites can take photos of our planet, can we take photos of other "earth-like" planets? Maybe to see if there are other lifeforms? Basically what I'm saying is, why dont we check for lifeforms by taking photos of planets closest to ours? Edit: Thanks for all the answers! I really appreciate it. It's just the thought that there would be chance of finding other intelligent lifeforms like us. And I was thinking if I should put this in Astromy but I felt like Planetary Sci. wouldve been better. Thanks submitted by /u/ohyeahsadboy [link] [comments]

How was the world map created? Posted: 25 Apr 2019 08:29 PM PDT How did scientists create such an accurate map of the world with such precise coordinates and how long ago was this done? submitted by /u/Im_A_Massive_AssHole [link] [comments]

I’ve read that plastic slowly decomposes over about 1000 years. What exactly causes it to decompose over such a long period of time? Why doesn’t it just never decompose? Posted: 25 Apr 2019 06:59 PM PDT submitted by /u/Decap_ [link] [comments]

What is happening on a cellular level when we get dry skin? Posted: 25 Apr 2019 08:20 PM PDT I have tried googling this but cannot find anything like I am looking for. I'm curious what changes, if any, happen to skin cells when the skin gets dry and how applying lotion impacts those cells. submitted by /u/Sabora12 [link] [comments]

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