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Monday, August 5, 2019

How do people make gold edible?

How do people make gold edible?


How do people make gold edible?

Posted: 04 Aug 2019 08:02 PM PDT

Are the melting ice caps and glaciers causing any meaningful desalination of the ocean and if so does this present a significant risk to ocean life?

Posted: 04 Aug 2019 10:45 AM PDT

Genes can affect multiple traits, but can genes also affect other genes?

Posted: 04 Aug 2019 09:15 PM PDT

Why is ethanol used as consumable alcohol, versus isopropyl alcohol which has less toxic metabolites?

Posted: 04 Aug 2019 10:05 PM PDT

Are human fertility rates affected by population density?

Posted: 04 Aug 2019 09:59 PM PDT

What’s the deepest recorded point in the ocean?

Posted: 05 Aug 2019 12:27 AM PDT

I was reading ocean themed horror stories and it got me wondering if the challenge deep of the mariana trench was the deepest point someone has been, or is there a deeper part that was recorded and not visited?

submitted by /u/ImXTooNinjaxX
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What is the usual distribution of star mass in a galaxy?

Posted: 04 Aug 2019 02:29 PM PDT

I heard that M type stars are the most common stars, is there a relationship between how common a type of star is and how massive it is? Does it depend on where the star is in the galaxy? Does the mass of stars follow a normal distribution?

submitted by /u/cfaust1
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Why do anti-convulsants like lamotragine and carbamazepine act as mood stabilizers for people with bipolar?

Posted: 04 Aug 2019 12:36 PM PDT

What is happening physiologically (in the lungs, alveoli, and general airway) when we cough?

Posted: 04 Aug 2019 07:40 PM PDT

Why does gunpowder need the three specific ingredients of charcoal, sulfur and saltpeter? What purpose does each ingredient serve?

Posted: 04 Aug 2019 04:54 PM PDT

When you rotate a glass, why does the liquid inside not rotate as much or at all compared to the glass?

Posted: 04 Aug 2019 10:52 AM PDT

I've always been confused by this and needed an answer so I can show off and tell them about my new founded science wisdom.

submitted by /u/tomgelse
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How do mushroom caps (fruit) transport nutrients?

Posted: 04 Aug 2019 12:20 PM PDT

I was just thinking back to my introductory biology class in university all those years ago and I remembered mushrooms were non-vascular organisms. I was wondering how they transported nutrients to the above-ground fruit? A google search revealed nutrient uptake occurs at the hyphae, but how is it transported throughout the rest of the body if they don't have vessels?

submitted by /u/SleepingSkeever
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Is it possible to create an accurate 3d scan of a magnet using its magnetic field?

Posted: 04 Aug 2019 10:17 AM PDT

I read a bit about the hall effect, but didn't find any definitive answer about wether I could reconstruct my original magnetic object with it or some other means.

submitted by /u/prog_r_amer
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What colors do cobras see? Do they have that sort of heat vision like the vipers?

Posted: 04 Aug 2019 01:27 PM PDT

I understand that vipers, pythons and boas have a sort of infrared/heat vision. That they mainly see blue and green. But what about cobras? Do they have this perk too? What colors do they see otherwise?

submitted by /u/ShoutAtThe_Devil
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Why do near sighted people needs to wear glasses or contacts when using VR goggles to see clearly?

Posted: 04 Aug 2019 11:11 AM PDT

I find this confusing at times. The screen of the VR goggles are basically near your eyes and yet when you are near sighted you still need to put your glasses or contacts when using them in order to see clearly

submitted by /u/gwapogi5
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Question about the behaviour of particles with hypothetical spin numbers?

Posted: 04 Aug 2019 12:27 PM PDT

Heyo, undergrad physics student here. Asking the question here so I don't get crucified for asking it in my own department, since it gets to the heart of some fundamental quantum first principles which I guarantee I haven't learned properly.

But we have lots of papers on how particles of hypothetical spin might behave. The most famous is the spin-2 graviton, but others like spin-1/3 particles I've also seen discussed.

My question then is about similarity. Would, for example, a spin-(1±ε)/2 particle behave more and more like a fermion as ε approaches zero (assuming it is confined to have a rational value)? Or would the behaviour likely get more exotic? For example, would a spin-50001/10000 particle be essentially a fermion?

GrantedbI don't expect such a question to be really nail-on-the-head answerable because it's so far purely hypothetical. But I'm genuinely interested to hear the response.

submitted by /u/LilamJazeefa
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Why is it that hypercomplex number sets like quaternions or octonions need to have a power of 2 dimensions?

Posted: 04 Aug 2019 05:59 AM PDT

How big is an “average” supernovas explosion diameter compared to the stars diameter?

Posted: 04 Aug 2019 09:33 AM PDT

I know average might be kinda arbitrary but just want to know if there's any sort of ratio between the diameters of the explosion itself and the star. I read that there's a corona that's something like 1.4 light years in diameter but that's been slowly expanding for quite a long time so it's not really an accurate representation of the explosion it's self.

submitted by /u/Diggumdum
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Which animals/organisms if any from earth could survive in space without the aid of any technology?

Posted: 04 Aug 2019 03:14 AM PDT

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