How did the physiology of the horse change once we started riding them? | AskScience Blog

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Monday, December 24, 2018

How did the physiology of the horse change once we started riding them?

How did the physiology of the horse change once we started riding them?


How did the physiology of the horse change once we started riding them?

Posted: 23 Dec 2018 07:46 AM PST

[Zoology] I recently learned that giraffes don't have the ability to cough. How do they survive when they get a bolus or some water stuck in their esophagus?

Posted: 23 Dec 2018 09:26 PM PST

Apparently it is due to their long neck, which seems to be an evolutionary glitch to me. I would assume they are in even more danger of restriction to their windpipes. Thanks in advance!

submitted by /u/FlammableFishy
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If you asked me if I had read a particular book, I could tell you instantly. However, if you asked me to list all the books I'd read, I'd not be able to recall them all - why is this?

Posted: 23 Dec 2018 05:06 AM PST

How do we precisely know how much gravitational force an object like a planet or a moon exerts on a satellite that is using it for a gravitational boost?

Posted: 24 Dec 2018 02:44 AM PST

How do we actually know how much mass a planet or moon has? Wouldnt its make up be kind of a complete ball park, therefore its mass be just a guess? Therefore its gravitational force be sort of a ballpark? But then how can we use it precisely?

submitted by /u/MyNameIsGladiat0r
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What factors cause/increase the chance of rain?

Posted: 24 Dec 2018 04:34 AM PST

I am a student studying software and im playing around with a simple machine learning library. I want to create a small program that can predict if it is raining or not by looking at a list of numerical attributes that may suggest rainfall. Im dont have much knowledge of meteorology, what atmospherical attributes am i looking for? (things such as high humidity % or high pressure)

thanks

submitted by /u/tom2kk
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How do you accurately calculate an azimuth between faraway countries?

Posted: 24 Dec 2018 02:43 AM PST

Hi, reddit! I am a travelling Network engineer about to travel to Poznan, Poland for work. Before leaving I wanted to give my son a compass because I thought it would be cool for him to be able to tell which direction I was. I started to do the math to calculate the azimuth between my (aprox) home and my (aprox) work location but I ran into some unexpected problems. I used online tools to help calculate, but all of them give impossible answers when I run the numbers.

EX. lat,lon: 16.9, 52.4 (Poznan, Poland) and -81.2, 33.9 (Columbia, South Carolina)

if I run the numbers with a standard azimuth calculator like: https://keisan.casio.com/exec/system/1317262499

then the answer I get is somewhere around 298 degrees in the northwest! I would expect some small margin of error, but results like this seem nonsensical. Can someone with more experience in this area help me find where I am going wrong?

submitted by /u/alexanderj1991
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Are atoms with a high electron count more likely to form bonds with other atoms because their valence electrons are far away from the nucleus?

Posted: 24 Dec 2018 06:38 AM PST

Do our ears adjust when listening to very quiet sounds?

Posted: 24 Dec 2018 06:36 AM PST

More specifically, is there a change that happens to our ears akin to pupils dilating in low light in order for quieter sounds (or sounds of different frequencies) to be picked up?

submitted by /u/AdamxKH
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Is psychopathy considered a binary diagnosis or is it seen as a spectrum?

Posted: 24 Dec 2018 07:36 AM PST

Basically, could a person who displays a lack of empathy for the most part but displays genuine empathy in certain situations be accurately diagnosed as a psychopath?

submitted by /u/Flumper
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After a critical point, in language acquisition, babies can no longer acquire new phonemes. Is it possible for a baby to acquire phonemes in a language, and use these skills to be able to pronounce phonemes in other languages as they get older?

Posted: 24 Dec 2018 07:28 AM PST

For example, if a baby were to learn a language (lets call it gibberish#1) that has every phoneme+more of another language (gibberish#2) could that baby learn gibberish#2 and speak it without an accent, having acquired all the required phonemes for gibberish#2 when they learned gibberish#1?

submitted by /u/TheMetaphorer
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How does the human metabolism change in response to morbid obesity?

Posted: 23 Dec 2018 05:35 PM PST

Are these changes permanent?

submitted by /u/MMMojoBop
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Were there changing seasons at all during the ice age, or was it like a long, harsh monotonous winter?

Posted: 24 Dec 2018 02:54 AM PST

What is the purpose of homosexual interaction between animals?

Posted: 24 Dec 2018 05:13 AM PST

I recently learned that about 90% of sexual interactions between giraffes happen between males. This surprised me, since I'd always assumed that homosexuality was a... genetic mutation that got passed down sparingly over time and was only ever present in a minority of a species? (not really sure about any of this tbh)
Yet, giraffes and I assume some other animals seem to disprove this idea.
Does this mean that homosexuality is actually useful in some way and (in some species) gets passed down a lot despite its nature? Are the animals in species that are prone to homosexual behaviour truly homosexual or rather just bisexual or something else entirely? Can the sexual interaction that happens between animals of the same sex be equated to the one with breeding purposes or is it rather a social interaction with some other type of purpose?

submitted by /u/SlimyFrog7
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What kind of soil and atmosphere analysis do Mars rovers do to test for extinct and extant life?

Posted: 24 Dec 2018 05:00 AM PST

What automated tests take place on these rovers to search for extinct and extant life?

submitted by /u/_avp_
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What is the difference between Tinea Versicolour & Pityraisis Versicolour?

Posted: 24 Dec 2018 04:41 AM PST

In theory, have no two events ever occurred at the exact same time (because time can be broken down into infinitely smaller units)?

Posted: 23 Dec 2018 05:16 PM PST

Why do you taste things much sweeter as an adult than as a child?

Posted: 23 Dec 2018 10:34 PM PST

Why when someone eats a sweet thing from their childhood, it does taste much sweeter than what you recall as a kid?

submitted by /u/angry_pinata73
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How large is Earths temperate orbital butterzone?

Posted: 24 Dec 2018 03:08 AM PST

So, life on this planet is somewhat delicate. We are placed at the exact spot around a star the exact size necessary to support life on this planet and seemingly this planet alone. How large is the butterzone of this exact orbit? Would we have to move hundreds of thousands of miles in or out just to change 1 degree or is it one of those "3 asteroid strikes and you are out of bounds" kinda things?

submitted by /u/TheStreetForce
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When your body gets used to cold water, does it perceive it as a warmer temperature or does it just become less sensitive to the cold?

Posted: 24 Dec 2018 03:03 AM PST

A UFC fighter was recently revealed to have trace amounts of a steroid in his system. Authorities in the UFC and USADA said that they’re from the last time he got busted and a redditor attempted to debunk this theory, could someone have trace amounts of Turinabol 18 months after use?

Posted: 24 Dec 2018 03:00 AM PST

How does a microwave melt butter?

Posted: 23 Dec 2018 11:01 PM PST

Everything I've ever seen says that microwaves work by spinning water molecules, taking advantage of the fact that they're polar. If I put a stick of butter in a bowl and microwave it, it will melt, but butter is not polar as far as I know. So how does the microwave heat it?

submitted by /u/NastyDad
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Why do atoms not seem to bond in a "closed circuit" type structure?

Posted: 23 Dec 2018 02:23 PM PST

Not sure if I'm wording that right. Just recently started reading online about physics and chemistry. I have lot of questions but one that I asked in highschool and never got a satisfying answer from my teacher was why o3 (ozone) doesnt make a triangle like bond within itself and has a single bond double bond thing going on. Like o=o-o rather than 3 single bonds in which all the atoms share a bond with each other. Please help.

submitted by /u/myhamsareburnin
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How does speed affect time in our galaxy that is flying through space and spinning around a SMBH?

Posted: 23 Dec 2018 09:44 PM PST

From my understanding the faster you travel the slow time "tics" for you. Does that mean that time depends on how fast your host galaxy is traveling through the universe?

submitted by /u/MyNameIsDrewp
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Does your current level of health and fitness dictate the genes passed on to your kids? Like can I get really fit and then have a baby to pass on those traits, or similarly if I got really fat and then had a baby would it be more likely to inherit those unhealthy traits? Or is it all predetermined?

Posted: 23 Dec 2018 03:37 PM PST

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