Why can I see star clusters better when they’re in my peripheral vision? | AskScience Blog

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Friday, July 6, 2018

Why can I see star clusters better when they’re in my peripheral vision?

Why can I see star clusters better when they’re in my peripheral vision?


Why can I see star clusters better when they’re in my peripheral vision?

Posted: 05 Jul 2018 10:10 PM PDT

I oftentimes find that I can see clusters of stars (sometimes just a couple slightly larger ones) better out of the corner of my eye. But tonight I observed what I'm assuming is part of the Milky Way better when not directly looking at it. In fact, when directly looking at it, I really couldn't make out many stars.

Why might this be?

submitted by /u/catbearcarseat
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It's a broad question, I know, but how much do psychotropic drugs typically affect the spinal cord, peripheral, and enteric nerves?

Posted: 05 Jul 2018 09:06 AM PDT

Since alternating current is truly "alternating" why are most 2 pronged plugs (U.S) built with one prong wider than the other, forcing it to be used in the socket in only one direction?

Posted: 05 Jul 2018 08:14 PM PDT

What happens to the energy from UVA/UVB rays when I'm wearing sun screen? Is it reflected or absorbed, and if it's absorbed does this result in additional heat energy?

Posted: 06 Jul 2018 12:49 AM PDT

Does Meditation have the power to heal wounds faster?

Posted: 06 Jul 2018 06:47 AM PDT

Question is self explanatory and probably sounds unsual, but I've heard lots of benefits of meditation. So, does regular and consistent meditation over the years affect the body in any such way that it increases the healing capacity of the body?

submitted by /u/vandalsavagecabbage
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Can mountains disrupt the paths of hurricanes?

Posted: 05 Jul 2018 06:50 PM PDT

Hello r/askscience,

I know that mountains can create a rain shadow making the area down wind of the mountain very dry.

I was curious if you had a mountain range would it disrupt the hurricane and possibly break it up? Or would the hurricane just roll over the mountains like very little was there?

With my very very basic understanding( a few tens of minutes of reading) I would think the answer is yes. The edge of the hurricane would hit the mountains and be normal but as you got to the center of the hurricane there is less warm air up in the mountains and eventually all that will be left is cool air breaking the "engine" of the hurricane down.

Thank you for your help!

submitted by /u/edrazzar
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If Dark Matter is changing the rotation speed of stars in every galaxy, why does it not change the rotation speed of planets around stars?

Posted: 05 Jul 2018 09:51 AM PDT

I've always heard that galaxy motion is dominated by the gravitational effects of Dark Matter. Why then is there no measurable effect within our solar system?

submitted by /u/barvader
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How do they modify fruit to be seedless?

Posted: 05 Jul 2018 05:01 PM PDT

Why does catnip affect cats as it does? And are there other instances of this kind of reaction/mild addiction to specific plants in the animal world?

Posted: 05 Jul 2018 06:10 PM PDT

How do fiber optics provide greater internet speed, and how is the technology improving?

Posted: 05 Jul 2018 06:55 PM PDT

How does hemispheric control work with conjoined twins that share a torso.?

Posted: 05 Jul 2018 03:19 PM PDT

Are there any chemicals that are _close_ to igniting on contact with air, but aren't quite reactive enough?

Posted: 06 Jul 2018 01:19 AM PDT

More questions: What would scientists even look for to determine whether this was true about a given chemical? Is such a state theoretically possible, and If so, but no such chemical exists, what conditions would have to be satisfied to make it so?

submitted by /u/royishere
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In relation is plasmons, what exactly are near field and far field?

Posted: 06 Jul 2018 01:08 AM PDT

Are they just referring to different properties of a plasmon, some that effect the near by electric field, and some that effect the far electric field? The paper I'm reading (read as: trying to understand) that's using this terminology is "On the Energy Shift between Near-Field and Far-Field Peak Intensities in Localized Plasmon Systems" by zuloga

submitted by /u/sabi0
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Can other species suffer from gigantism?

Posted: 05 Jul 2018 04:13 PM PDT

If gigantism is a condition where your body produces too much growth hormones and most species have growth hormones why haven't I ever heard of or seen a picture of an animal with the condition?

submitted by /u/Vigna72
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Is it possible to simulate a fluid's motion without modelling it as a bunch of particles?

Posted: 05 Jul 2018 05:58 PM PDT

I do not understand fluid dynamics. Do real life fluids behave exactly like an infinite number of teensy particles, or is there something fundamentally different about their motion?

submitted by /u/aitigie
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Why does gyroscopic precession go at a speed inversely proportional to spin speed, while nodal precession of an orbit is directly proportional?

Posted: 05 Jul 2018 09:46 AM PDT

If you look here: https://en.wikipedia.org/wiki/Precession#Classical_(Newtonian)

We have an omega_p of precession, with the omega_s of spinning in the denominator.

But if we look at https://en.wikipedia.org/wiki/Nodal_precession

We get omega in the numerator (right after the J2).

Why do these have different dependencies? My understanding was that nodal precession IS a form of gyroscopic precession. Does anyone know the derivation for nodal precession?

Would also appreciate any suggestions to other subreddits to ask, this feels pretty technical compared to what I usually see around here.

submitted by /u/WaitForItTheMongols
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How do we know the age/lifespan of stars?

Posted: 05 Jul 2018 04:12 PM PDT

Was reading the wiki entry on open clusters after someone mentioned it elsewhere and came across this statement:

"Open clusters generally survive for a few hundred million years, with the most massive ones surviving for a few billion years."

How is it that we know this even though couldn't have watched it play out and we don't have any physical access to them. What sort of dating process is used and how do we know it works?

submitted by /u/mman426
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How are each of the lobes in the brain differentiated on a biological level?

Posted: 05 Jul 2018 01:17 PM PDT

Certain areas have different functions, but how does that map to their individual clusters of neurons?

submitted by /u/spauldeagle
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Why are babies hands and feet purple or blueish when they're a newborn?

Posted: 05 Jul 2018 01:59 PM PDT

How do monarch butterflies find milkweed?

Posted: 05 Jul 2018 05:03 PM PDT

They fly thousands of miles... How are they able to track down a single milkweed plant in the middle of nothing else to lay their eggs?

submitted by /u/mandyvigilante
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