If the universe had a definite boundary, what would it look like, what would we see? | AskScience Blog

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Tuesday, March 28, 2017

If the universe had a definite boundary, what would it look like, what would we see?

If the universe had a definite boundary, what would it look like, what would we see?


If the universe had a definite boundary, what would it look like, what would we see?

Posted: 27 Mar 2017 02:23 PM PDT

How do doctors stop internal bleeding?

Posted: 27 Mar 2017 05:51 PM PDT

What is the most effective procedure when there is lethal amounts of internal bleeding within a patient?

submitted by /u/Kingoflamp
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Can neutron star jets significantly change the object's trajectory through the galaxy over time?

Posted: 28 Mar 2017 02:26 AM PDT

Are any gene editing techiques currently being used in conservation?

Posted: 27 Mar 2017 09:46 PM PDT

In some populations such as the Hawaiian goose (Branta sanvicensis) can still be interbred with the Canada goose (Branta canadensis), but some believe this would "pollute" the Hawaiian goose's genome. Could gene editing be used to increase genetic diversity, and if so, are there any recent studies on this topic?

submitted by /u/RamenBurgerWasTaken
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Why can't it get any colder than absolute zero kelvin (273.15°C)?

Posted: 28 Mar 2017 12:54 AM PDT

[Biology] What's the difference between starfish and humans that starfish can regenerate limbs, but humans can only regenerate scraped skin or a cut at most?

Posted: 28 Mar 2017 01:19 AM PDT

Humans can heal from wounds/surgeries pretty easily but what's the difference between that and limb regeneration? Why do amputees develop a skin over their stump instead of regenerating the limb?

submitted by /u/439115
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Is there one "color" on the light spectrum that is more prevalent in our universe than the others, or is each represented equally?

Posted: 27 Mar 2017 02:29 PM PDT

Do polymers made of oxygen exist?

Posted: 28 Mar 2017 05:56 AM PDT

Do polymers exist made up of oxygen only? As in [-o-o-]n sort of thing.

submitted by /u/PM_ME_YOUR_COOL
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Under what circumstances will a star collapse?

Posted: 27 Mar 2017 06:22 PM PDT

If Newton's Law of Gravitation is only meant for point masses, how come we use it to calculate force of gravity on a massive body like Earth?

Posted: 27 Mar 2017 10:08 AM PDT

If the universe is expanding in all directions how is it possible that the Andromeda Galaxy and the Milky Way will collide?

Posted: 26 Mar 2017 10:05 AM PDT

Why is argon the most abundant noble gas in Earth's atmosphere?

Posted: 28 Mar 2017 03:24 AM PDT

If we were to colonize one of Jupiter's moons, would Jupiter have cycles the same way our moon has lunar cycles?

Posted: 27 Mar 2017 07:38 PM PDT

If we were to somehow colonize one of Jupiter's moon, would Jupiter go through cycles like our moon? Would we look in the sky and maybe see Jupiter like a crescent?

submitted by /u/SIRUNKLYDUNK
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How does the brain differ between inner speech, speaking and hearing speech/being talked to?

Posted: 27 Mar 2017 11:17 PM PDT

Would all three go through Broca's and Wernicke's areas? Do they all cause movement of speech aparatus? How similar and how different all three processes are neurologically?

submitted by /u/kefir__
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Why do rockets turn when leaving the atmosphere?

Posted: 28 Mar 2017 06:10 AM PDT

In basically every video of a rocket leaving the atmosphere, it banks at an angle and then exits. Why is this?

submitted by /u/the-overm1nd
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If I were to connect a radiator to a sealed pot on the stove, would water circulate through it without a pump?

Posted: 27 Mar 2017 03:23 PM PDT

If so, is there a away to estimate the amount of flow of water? And what is the name of this phenomenon?

submitted by /u/captainsavajo
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How can police/municipalities use LIDAR with enough range to map cities, detect speeders, and do geographical surveys without using a laser that's powerful enough to damage the human eye via incidental exposure?

Posted: 27 Mar 2017 07:33 PM PDT

From what I've been able to tell, class 1 lasers shouldn't be powerful enough to do more than very short range LIDAR. What am I missing?

submitted by /u/rogue780
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If a disk of gas spirals into a black hole, why does a beam shoot out perpendicular to the disk?

Posted: 27 Mar 2017 09:36 PM PDT

Why doesn't water fall out of a sponge?

Posted: 27 Mar 2017 11:25 AM PDT

Is it just surface tension and molecular attraction between the water and the sponge itself?

submitted by /u/madcaplaughed
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Are we able to detect when pairs of particles spotaneously pop into existence?

Posted: 27 Mar 2017 03:41 PM PDT

As I understand it, elementary particles will pop into existence as a contrary pair of particles. Naturally, particles will also cancel out very quickly after coming into existence. Does this leave behind some trace that we can detect?

submitted by /u/edgeblackbelt
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What's the current consensus among scientists on what's the actual driving force behind osmosis?

Posted: 28 Mar 2017 03:51 AM PDT

Are there uniqueness theorems in general for most equations with physical motivations?

Posted: 27 Mar 2017 08:55 PM PDT

For example, in quantum optics the Maxwell-Bloch equations are fairly prominent (can be derived from first principles in quantum mechanics). But I had never come across a proof for the uniqueness of their solutions. Thus, I was wondering if one already exists?

submitted by /u/CallMeDoc24
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Are reading and writing learned at the same time?

Posted: 27 Mar 2017 05:02 PM PDT

How uncommon would it be, if possible, for a person to learn to read, but not write, or to write, but not read?

That is to say, is it essentially the same set of mental skills / muscles?

submitted by /u/nickrenfo2
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Does eating at a calorie deficit inhibit your growth or hormonal development?

Posted: 27 Mar 2017 10:56 PM PDT

If sustained for long periods of time

submitted by /u/Skeptic5000
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