How did scientist come up with and prove carbon dating? |
- How did scientist come up with and prove carbon dating?
- Has there ever been evidence of spatial dimensions beyond the three we can perceive?
- How does the heart know how fast (or slow) to beat?
- Why is water in its purest form (H2O) unstable?
- How do astronomers determine the distance and size of a star or exoplanet?
- Does dust/particles on the glass affect space telescopes significantly and how is this problem addressed?
- If one of the goals of exercise is to get the heart rate elevated, do things like anxiety or low BP help work the heart out?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- Would a boat float on top of a large ball pit? What are the major factors impacting the question?
- If Wi-Fi is just light in a spectrum we can't see, could I use a magnifying glass to focus it and get better signal?
- Why does a puff of smoke appear when a candle goes out?
- To reach the Sun, less delta-v is required if you go "out" first, and then descent, compared to going straight to the Sun from Earth. How is this consistent with conservation of energy?
- How do elliptical orbits work when only one of the focal points is filled?
- Have any new species or sub species evolved because of chinas great wall?
- Why are the Mojave and Sonoran deserts considered two separate deserts?
- How do electrons in the d-orbitals of some atoms in minerals give the mineral it’s colour?
- What is the scientific evidence (controlled studies, etc.) showing or refuting effectiveness of workplace sexual harassment training? Is there scientific evidence supporting any other interventions in the workplace to reduce sexual harassment?
- When a rocket/ probe is launched for a long distance mission such as Voyager or the Mars Rover does it orbit the Sun like the planet's or just travel in a straight line?
- Do Electrons Have a Defined Location Whenever They Interact via the Coulomb Force?
- The strong nuclear force works only for very small distances. How is this energy harnessed to make huge nuclear explosions?
- Are there materials that are good at conducting heat but not electricity or vice versa?
- What would happen if you tried to light a lighter in a vacuum?
- Where does gut bacteria come from?
- Why is network speed measured in bits and not bytes?
| How did scientist come up with and prove carbon dating? Posted: 19 Dec 2017 01:53 PM PST |
| Has there ever been evidence of spatial dimensions beyond the three we can perceive? Posted: 20 Dec 2017 07:06 AM PST Lately I've become extremely interested in spatial dimensions beyond length, width, and height, reading Flatland, etc. I was thinking about something recently. If we have a universe of 2D space that us as three-dimensional beings can look at, we can interact with that universe but only in a distorted kind of sense. A 3D object casts a 2D shadow. A 3D object moving through the plane of a 2D universe would appear to a 2D being as something that appears from nowhere, changes shape, and eventually disappears into nothingness. We haven't found a 2D plane of existence to test this out on, of course, and, as far as I know, We haven't ever seen a four-dimensional object cast a three-dimensional "Shadow." At least, as far as I know. I've seen some people postulate about 5, 6, even 10 spatial dimensions. But if these dimensions actually existed, shouldn't we have seen, by now, some form of evidence of them? Or have we seen three-dimensional "shadows" of four-dimensional objects and I'm just unaware? [link] [comments]  |
| How does the heart know how fast (or slow) to beat? Posted: 20 Dec 2017 01:23 AM PST Is it caused by some kind of signal to the heart from the brain? How does the heart know to beat faster when I am running, and to beat slower when I am at rest? I can't fathom how this works in our bodies. To extend on the question if I may, does it work differently for other animals? [link] [comments]  |
| Why is water in its purest form (H2O) unstable? Posted: 20 Dec 2017 05:31 AM PST My father works at a plant that distills water to the point that it starts attacking the metal containers and I've always wondered why this happens. [link] [comments]  |
| How do astronomers determine the distance and size of a star or exoplanet? Posted: 19 Dec 2017 12:35 PM PST |
| Posted: 20 Dec 2017 05:45 AM PST |
| Posted: 19 Dec 2017 09:40 AM PST I've been told to set a HR when one exercises and try to keep it above that point to maximize the workout. I wonder: is there a difference, in terms of improving cardiac function, between running vs. anxiety, sitting in a hot shower, HR medications, etc? [link] [comments]  |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 20 Dec 2017 07:07 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| Would a boat float on top of a large ball pit? What are the major factors impacting the question? Posted: 19 Dec 2017 11:38 AM PST |
| Posted: 19 Dec 2017 06:35 PM PST Would it be possible to have a lens focus a Wi-Fi signal at my computer to get better signal? I know that Wi-Fi is still light, but I don't know if it acts any differently from visible light, or if focusing it will help the signal. [link] [comments]  |
| Why does a puff of smoke appear when a candle goes out? Posted: 19 Dec 2017 06:44 PM PST |
| Posted: 20 Dec 2017 03:13 AM PST |
| How do elliptical orbits work when only one of the focal points is filled? Posted: 19 Dec 2017 06:51 PM PST If an ellipse is defined to have two focal points, then why is it that IRL we see elliptical orbits without two central bodies? How is it the central body can maintain a gravitational hold on the orbiting body? [link] [comments]  |
| Have any new species or sub species evolved because of chinas great wall? Posted: 19 Dec 2017 06:10 PM PST |
| Why are the Mojave and Sonoran deserts considered two separate deserts? Posted: 20 Dec 2017 01:23 AM PST I guess the question also applies to the Great Bassing Desert. As those three deserts lie in continuation of eachother why are they considered different deserts? Why aren't they just considered one large desert? Obviously it can't be because of national or state borders as they cross those. Is it purely historical or is there are scientific reason? [link] [comments]  |
| How do electrons in the d-orbitals of some atoms in minerals give the mineral it’s colour? Posted: 19 Dec 2017 02:53 PM PST |
| Posted: 19 Dec 2017 10:17 AM PST Many institutions, companies, and other workplaces, are responding to the current environment by instituting or increasing workplace training related to sexual harassment. What kind of training, if any, to have scientific, evidence-based support (i.e. that shows the training reduces sexual harassment)? I'm also interested any other scientific evidence showing workplace interventions that reduce sexual harassment. [link] [comments]  |
| Posted: 19 Dec 2017 09:06 PM PST |
| Do Electrons Have a Defined Location Whenever They Interact via the Coulomb Force? Posted: 19 Dec 2017 06:34 PM PST Coulomb's law states that the force is inversely proportional to the charged particles' distance. This would imply that the interacting particles' superposition collapses into a defined location. Obviously particles in atoms constantly interact with each other, so does this mean particles are constantly collapsing superpositions to interact and then gaining back a superposition again many many times every second? [link] [comments]  |
| Posted: 19 Dec 2017 09:22 AM PST |
| Are there materials that are good at conducting heat but not electricity or vice versa? Posted: 19 Dec 2017 09:10 AM PST |
| What would happen if you tried to light a lighter in a vacuum? Posted: 19 Dec 2017 09:16 PM PST |
| Where does gut bacteria come from? Posted: 19 Dec 2017 04:51 PM PST Are we born with bacteria in our gut that we get from the bacteria in our mother's gut? Do we take in gut bacteria from the food we eat? I'm interested mostly in humans but if this happens for other organisms in different ways I'd be interested to know that as well. [link] [comments]  |
| Why is network speed measured in bits and not bytes? Posted: 19 Dec 2017 07:39 PM PST |
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