Historically, why did fevers used to kill so many people, but now they're a rarely fatal annoying symptom? |
- Historically, why did fevers used to kill so many people, but now they're a rarely fatal annoying symptom?
- Why does fruit bruise?
- How would soft drinks (Carbonated) behave in space?
- Why do estrogen levels drop before ovulation and then rise again after?
- Are Hurricanes/Tornadoes - Net Heating or Net Cooling events or Heat Neutral?
- How does wood become driftwood and why does some wood just rot in water?
- Does a big molecule experience Buoyancy?
- Why doesn't an atoms atomic number correlate with how common the element is?
- What percentage of people sign petitions?
- When ignited what temperature does gunpowder reach?
- If I take the rubber piece of a capacitive stylus off of the pen from which is came, and place it on an arbitrary stick or non-stylus pen, it loses its capacitive functions. What, besides the rubber, allows a capacitive stylus to function?
- Would the alignment of a magnetic compass needle be affected during a thunderstorm?
- Is there any data/science showing pornography actually "damages" a post-pubescent person's psyche?
- What does the bend at the end of a plane's wings do?
- What is the mechanism for catch-up growth in children?
- Why does catnip contain nepetalactone? Wouldn't that be detrimental to the plant?
| Posted: 24 May 2019 12:37 PM PDT |
| Posted: 24 May 2019 05:52 PM PDT |
| How would soft drinks (Carbonated) behave in space? Posted: 24 May 2019 10:56 AM PDT I was watching a video the other day about how an astronaut invented a special drinking cup for liquids in space, and that gave me a question that lingered in my brain enough to ask here. Basically, how do soft drinks, like Coke and Pepsi, act in space where there's no gravity? How do the bubbles form and where do they go? Does it pose any dangers? If left opened to the "air" in the space-station, would it become de-carbonated like here on Earth? or will it hold onto the gas in it..etc (I wasn't sure if I should use Astronomy, Physics or Chemistry for this, sorry if I made the wrong call.) [link] [comments]  |
| Why do estrogen levels drop before ovulation and then rise again after? Posted: 24 May 2019 02:42 PM PDT What is the purpose of the dip; why doesn't estrogen just stay elevated? [link] [comments]  |
| Are Hurricanes/Tornadoes - Net Heating or Net Cooling events or Heat Neutral? Posted: 24 May 2019 12:51 PM PDT I know these events are caused by cold fronts and warm front meeting. All said and done though are the individual events Net Warming Net Cooling or does it just help distribute the same temperature move evenly? Do the storms themselves help alleviate environmental warming or contribute to it? [link] [comments]  |
| How does wood become driftwood and why does some wood just rot in water? Posted: 24 May 2019 01:11 PM PDT How does it form, and why does not all water logged wood become drift wood? [link] [comments]  |
| Does a big molecule experience Buoyancy? Posted: 24 May 2019 12:33 PM PDT I am wondering how big an object has to be to be affected by Buoyancy. Atoms cannot be big enough, right? But big molecules maybe? I mean, it is difficult to speak of "mass per volume" for a single molecule. And if certain big molecules are affected by Buoyancy they would probably form layers at certain depths. I do not think that is the case. So how big does the object have to be? The size of a few water molecules? Is there an equation for this limit? [link] [comments]  |
| Why doesn't an atoms atomic number correlate with how common the element is? Posted: 24 May 2019 10:25 AM PDT Hydrogen has the atomic number 1, and it's also the most common element in the universe. Helium has the atomic number 2 and is the second most common element. However, after that, the atomic number doesn't correlate to the elements abundance. The next most abundant is Oxygen, which has an atomic number of 8, then Carbon with an atomic number of 6. This seems really weird to me because from my understanding, when fusion happens, for oxygen to be created, it has to first become lithium, beryllium.... etc, until oxygen. I'm guessing this is where I'm making my mistake and my understanding of fusion is not correct. [link] [comments]  |
| What percentage of people sign petitions? Posted: 24 May 2019 12:27 PM PDT So for instance if a petition got 100000 signatures how many people would actually share those views. I was wondering this because of the revoke Brexit petition which got 6 million signatures although something like 48% (about 30 million) don't want Brexit. [link] [comments]  |
| When ignited what temperature does gunpowder reach? Posted: 24 May 2019 12:04 PM PDT The various sources I've found provide conflicting information, and I'd genuinely like to know the truth of the matter. Also, on a slightly related note, what would be the 'blast radius' of a barrel of gunpowder being detonated? How about the blast radius of 10 square feet worth of it? [link] [comments]  |
| Posted: 24 May 2019 10:39 AM PDT |
| Would the alignment of a magnetic compass needle be affected during a thunderstorm? Posted: 24 May 2019 09:26 AM PDT We know that that compass needle changes its alignment when a wire with electricity running through it is brought closer to the needle. So will the same thing happen when there would be lightning strike nearby? [link] [comments]  |
| Is there any data/science showing pornography actually "damages" a post-pubescent person's psyche? Posted: 24 May 2019 08:51 AM PDT With Theresa May's resignation I saw some redditors posting about her law that UK citizens require ID to access porn sites, to prove they're 18+. So it made me wonder, is there any actual science showing "damage" (whatever that would mean in this context) as a result of young consumption of pornography? I am talking about post-pubescent specifically here but younger ages would be interesting as well. [link] [comments]  |
| What does the bend at the end of a plane's wings do? Posted: 24 May 2019 06:09 AM PDT |
| What is the mechanism for catch-up growth in children? Posted: 24 May 2019 10:58 AM PDT For example, how can a malnourished child 'catch-up' and regain their lost growth once fed properly, why can they make up for this lost time ? I realise this is phrased poorly but any information would be great. [link] [comments]  |
| Why does catnip contain nepetalactone? Wouldn't that be detrimental to the plant? Posted: 24 May 2019 02:31 PM PDT Catnip contains nepetalactone, which is a feline attractant and causes cats in the area to bite and crush the plant. Why did catnip evolve to produce this chemical? Is there some other advantage of nepetalactone that outweighs the negative effects of its cat-attracting capabilities? [link] [comments]  |
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