Why do "campfire smells" (or other wood-burning smells) seem to stick to clothing/skin longer than other smells?

---

• Why do "campfire smells" (or other wood-burning smells) seem to stick to clothing/skin longer than other smells?
• At what taxonomical level do we begin to observe valves in veins?
• Can a bagel be cut into Borromean rings?
• Why can't we target beta amyloid plaque with ubiquitin?
• How does Boron's ability to absorb neutrons work and does absorbing neutrons affect the atom?
• Why is hydrochloric acid a covalent compound, and why is it still named as hydrogen chloride?
• What holds a cloud together?
• What is the criteria for a disease to be considered as eradicated?
• Is there a charge for the weak force?
• i have various questions about black holes?
• Is Hyper Ionization of Large Elements Possible?
• What are the benefits from discovering only a few atoms of elements like 118 (Oganesson) and others that were created in an accelerator?
• Why isn't set-builder notation used for defining functions?
• What happens inside my charger if I plug one end into the outlet, but don't plug the other end into my phone?
• During the Spanish conquest of the Americas, why did pestilence flow from the Spanish to the indigenous populations, and not the other way?
• Which is more conductive, frozen or liquid H2O? Can anyone clarify?
• Can you use the water pressure at the bottom of the ocean to get renewable energy?
• Could the Earth's magnetic field in any way be utilized as an energy source in orbit?
• How much of an impact do moons have on our solar system in terms of gravity? What would the orbit of the planets look like with moons?
• The 4 fundamental forces of nature are well known, but how far can they be condensed?
• Is the moon slowing down?

Why do "campfire smells" (or other wood-burning smells) seem to stick to clothing/skin longer than other smells? Posted: 17 Feb 2017 07:38 PM PST submitted by /u/Dandymcstebb [link] [comments]

At what taxonomical level do we begin to observe valves in veins? Posted: 17 Feb 2017 08:59 PM PST I was watching this video on hearts when I saw that the venous structure diagram did not show valves (see here). At what taxonomical level do valves arise? I know that vertebrates tend to have closed circulatory systems whilst invertebrates can also have open ones (though "vertebrate" and "invertebrate" are not accurate taxonomic distinctions). I do not know, however, when the structure of veins begins to diverge. That's what I'd like to know. submitted by /u/De_dato [link] [comments]

Can a bagel be cut into Borromean rings? Posted: 17 Feb 2017 08:48 AM PST A video has been going around lately showing that a bagel can be cut into two linked rings if you cut along a Mobius band. In theory, with an additional cut, we could produce three linked rings. And obviously, with a bunch of cuts you could trivially carve a set of Borromean rings out of a bagel. But it got me wondering, is there a way using two cuts to slice a torus into three (or more) Borromean rings? My suspicion is that it can't be done, but I'm not sure how to go about proving or disproving this. submitted by /u/quatrevingtneuf [link] [comments]

Why can't we target beta amyloid plaque with ubiquitin? Posted: 18 Feb 2017 01:10 AM PST I'm learning about how proteins are targeted for destruction using ubiquitin and how these proteins are subsequently torn up by molecular machines called proteasomes. If plaques are predictable because of how they are cut up and aggregate together, why can't we tag them with ubiquitin and allow proteasomes to eat away at them? submitted by /u/Humes-Bread [link] [comments]

How does Boron's ability to absorb neutrons work and does absorbing neutrons affect the atom? Posted: 17 Feb 2017 10:22 AM PST Boron is often used in nuclear reactors because of its ability to absorb neutrons. How can Boron do this without becoming super heavy or otherwise changing itself? submitted by /u/techNerd89 [link] [comments]

Why is hydrochloric acid a covalent compound, and why is it still named as hydrogen chloride? Posted: 17 Feb 2017 08:42 PM PST Although I've read that all acids are ionic as they break into a hydronium ion in solution, hydrochloric acid has a polar covalent bond and is classified as covalent, even though it's named hydrogen chloride. Could I ask for an explanation for why it is not ionic even as an acid, and why it would still be named hydrogen chloride? I couldn't find an explanation online. submitted by /u/Natsu_Hime [link] [comments]

What holds a cloud together? Posted: 17 Feb 2017 08:38 AM PST When i smoke and breath out a cloud it gets dispersed fairly quickly, even inside where there is no wind. Now I know that they are always changing but sometimes you can watch a cloud move all the way across the sky looking like the same cloud. Why dont they constantly disperse and form into new clouds due to winds/other forces? submitted by /u/b-crew96 [link] [comments]

What is the criteria for a disease to be considered as eradicated? Posted: 17 Feb 2017 06:44 PM PST submitted by /u/pen__pen [link] [comments]

Is there a charge for the weak force? Posted: 18 Feb 2017 01:43 AM PST The other three fundamental forces all seem to have charges which act as sources and/or sinks of flux. Electromagnetism has electric charge, gravity has mass and the strong force has colour. So is there a charge for the weak force? submitted by /u/nottherealslash [link] [comments]

i have various questions about black holes? Posted: 17 Feb 2017 08:39 PM PST I've tried googling for these answers but the links online tend to be pretty hardcore science and math related. I'd be grateful if I could get the answer without it being overly complicated. Please and thanks! So let me give my understanding of a black hole and then I'll ask the things I'm confused about. And please also correct me where I'm wrong. My understanding is that a black hole is caused by any body that has been shrunk to a degree that has caused an enormous amount of density. This now exerts an enormous amount of gravitational force within a specific radius, so large that even light can't escape. I believe this doesn't technically have to be an old star but practically speaking that's the only way it'd happen, for a star to die. Am I correct so far? Here's the questions I have: What is the volume of a black hole? I've wondered this for years and never got a straight answer. When googling around I used to get math rather than a straight answer. My latest understanding was that the volume was zero and this is called the singularity. But just yesterday I read about a supermassive black hole in the phoenix cluster that seemed thousands of times larger than our solar system. I'm not referring to mass (though the mass was 20 billion times our sun) I'm referring to volume. Actually is volume technically the correct term? What exactly is the Singularity, the Schwarzschild Radius, and the Event Horizon? My understanding of the Event Horizon is that it's the edge of space a specific radius from the hole where nothing can escape, not even light. Correct? But I also know that gravity is a function of mass. The sun's gravity doesn't affect astronauts in space because they have minimal mass but it affects pluto which is soooo much further away because pluto's mass is so much more. So if that's correct then while light may be able to escape from the edge of the event horizon, if you were to put, say, a paperclip a foot away from it that would probably get sucked in, right? If you were to put a human a mile behind the horizon I would guess that would also be sucked in. So it seems like the event horizon only measures what light can escape and is a fairly random thing outside of that. I dont see the relevance. EDIT - I just googled the Schwarzschild Radius. The explanation was simpler than I expected. But the explanation I'm seeing makes it sound like the definition of an Event Horizon to me The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is the radius of a sphere such that, if all the mass of an object were to be compressed within that sphere, the escape velocity from the surface of the sphere would equal the speed of light. submitted by /u/ZiggyZig1 [link] [comments]

Is Hyper Ionization of Large Elements Possible? Posted: 17 Feb 2017 11:31 AM PST By this question I mean taking a large element like uranium and stripping away ALL of its electrons not just the valence electrons. If so is there a size limit to the elements before the nucleus has too great of a positive charge to let all the electrons go? submitted by /u/Wooglepook [link] [comments]

What are the benefits from discovering only a few atoms of elements like 118 (Oganesson) and others that were created in an accelerator? Posted: 17 Feb 2017 07:22 AM PST Certain man-made elements like Tennessine (117) or Oganesson (118) have been created in a particle accelerator but only a few atoms detected at a time. If we cant physically do anything with these new elements, what are the other benefits from creating/discovering them? And whats the importance of synthesizing others like element 120? submitted by /u/BSJones420 [link] [comments]

Why isn't set-builder notation used for defining functions? Posted: 17 Feb 2017 01:33 PM PST In set-builder notation, we use | to show givens, yet there isn't really a standard symbol to show givens when defining functions. But when we define functions, there's no real standard notation to show conditions for the function. For example, if f(x)=x-1, some may write this as: f(x) = x-1, x != 0 or f(x) = x-1 st x !=0 or f(x) = x-1 gt x != 0 So why don't we just import the symbol from set-builder notation so that it becomes standardised? submitted by /u/BlueSuperSaiyan79 [link] [comments]

What happens inside my charger if I plug one end into the outlet, but don't plug the other end into my phone? Posted: 17 Feb 2017 01:52 AM PST submitted by /u/Wihtedeka [link] [comments]

During the Spanish conquest of the Americas, why did pestilence flow from the Spanish to the indigenous populations, and not the other way? Posted: 17 Feb 2017 05:00 AM PST submitted by /u/Iwillnotgiveinagain [link] [comments]

Which is more conductive, frozen or liquid H2O? Can anyone clarify? Posted: 17 Feb 2017 04:45 PM PST Hi all, I have read some mixed responses on the conductivity of liquid water vs. ice. I am aware that the ions themselves conduct, not the water, but a couple of websites (and a previous Ask Science) contradict each other by suggesting liquid water conducts electricity better than ice, and vice versa: https://van.physics.illinois.edu/qa/listing.php?id=16435 vs. https://www.reddit.com/r/askscience/comments/1gxqlq/does_ice_conduct_electricity_as_well_as_water_if/caoyxb9/ Which is correct? I have also heard from a coworker who is an electrician that the conductivity is actually the same. Can someone please clarify? submitted by /u/Siludin [link] [comments]

Can you use the water pressure at the bottom of the ocean to get renewable energy? Posted: 17 Feb 2017 01:48 AM PST Title says it all really, is there a way to convert the pressure from deep in the ocean into renewable energy? submitted by /u/Harvveyy [link] [comments]

Could the Earth's magnetic field in any way be utilized as an energy source in orbit? Posted: 17 Feb 2017 03:05 AM PST I maybe embarrassing myself, however is this even hypothically possible? If our magnetic field can protect us from solar fliars, does it have the strength to be harnessed by us in any significant way? submitted by /u/epluribusunum1066 [link] [comments]

How much of an impact do moons have on our solar system in terms of gravity? What would the orbit of the planets look like with moons? Posted: 17 Feb 2017 05:48 AM PST submitted by /u/J-Bird7 [link] [comments]

The 4 fundamental forces of nature are well known, but how far can they be condensed? Posted: 17 Feb 2017 03:15 AM PST Everybody was taught about the 4 fundamental forces of nature ( weak interaction, strong interaction, gravity, and electromagnetism), but lately the weak interaction and electromagnetism can be unified as the Electroweak Force, while the Strong interaction sometimes gets split into 'residual' vs 'fundamental'. Also, quintessence is mentioned in several theories. submitted by /u/polio18 [link] [comments]

Is the moon slowing down? Posted: 17 Feb 2017 04:08 AM PST Nothing in this life is free, and neither I assume is the energy that the Moon imparts on the Earth in terms of tides. Therefore I assume the Moon faces resistance in its orbit around the Earth, and so must be slowing down, and getting closer to the Earth. Am I right? submitted by /u/George5562 [link] [comments]

You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States