Aside from Uranium and Plutonium for bomb making, have scientist found any other material valid for bomb making? |
- Aside from Uranium and Plutonium for bomb making, have scientist found any other material valid for bomb making?
- When birds fly south for the winter, how exactly does the population Distribution change? Do they all fly south an equal distance and displace each other, or do those that spend summer farther north have to fly farther south to find unoccupied territory?
- Does the ISS ever have to adjust its velocity and if so, how does it accomplish it?
- Why don't Cats need haircuts?
- How do scientists know the chemical components of far away planets?
- Is it known when/where Rh negative people first appeared, or have they always been around?
- [Physics] If strong force is strong enough to keep protons together, why do atoms need neutrons to keep the protons from tearing apart?
- How can we know about a 20-mile wide Kuiper belt red object (MU69), but just now be "discovering" two new moons over Uranus?
- Microwave cavities are necessary to generate microwaves, so where is this component on a wireless router?
- I quit smoking after 20 years. What is my body doing to heal itself?
- Can we accurately calculate the rate at which heat will travel through an object? How do we do that?
- Are the limits, or bounds, to the electromagnetic spectrum?
- What is the heritability of Ehler's-Danlos Syndrome, and chance of a child being born with it if one parent (mother) is affected with the condition (hypermobility type) and the father does not have the condition?
- How do radio stations judge their number of listeners?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- Is there something like the "double dabble" algorithm, for trinary/base 3?
- If a vacuum is an extremely effective insulator, how does the ISS and other space vessels handle dissipating heat?
- Confusion about the inverse square law. Can someone please explain?
- Could a single molecule of water conduct electricity?
- Do nyctinastic plants absorb the same amount of sunlight when closed?
- Is there a need for a larger particle accelerator?
- How fast is lightning in a vacuum?
- How are the strong/weak nuclear forces stronger over a short distance compared with electromagnetism/gravity, yet weaker over longer distances?
- How does molecular structure search work?
| Posted: 19 Oct 2016 05:50 PM PDT Im just curious if there could potentially be an unidentified element or even a more 'unstable' type of Plutonium or Uranium that scientist may not have found yet that could potentially yield even stronger bombs Or, have scientist really stopped trying due to the fact those type of weapons arent used anymore? [link] [comments]  |
| Posted: 20 Oct 2016 06:34 AM PDT I think the question is pretty well contained in the title text, but for reference, I was looking at the range of the Canada Goose. They're a permanent resident in the upper half of the US, but they're seasonal in most of Canada and the southern US. How exactly do the populations migrate? Do they replace each other linearly, where they all more or less fly an equal distance south, or do the birds present in the upper US mostly stay put in their 'territory' while those from Canada have to migrate all the way to Texas to find an unoccupied area to spend the winter? [link] [comments]  |
| Does the ISS ever have to adjust its velocity and if so, how does it accomplish it? Posted: 20 Oct 2016 06:45 AM PDT |
| Posted: 19 Oct 2016 08:25 PM PDT |
| How do scientists know the chemical components of far away planets? Posted: 20 Oct 2016 05:40 AM PDT |
| Is it known when/where Rh negative people first appeared, or have they always been around? Posted: 20 Oct 2016 08:05 AM PDT I stumbled upon a clickbaity article claiming that 'Rh negative people are aliens' and a bunch of other nonsense, so I started looking around and it turns out there isn't much info online about the 'genealogical history' (probably not the right technical term for it) of Rh negative people. A quick look at the Wikipedia page for blood type distribution by country tells me it's mostly European lineages that are Rh negative, so intuitively I would think that a mutation occurred in Europe at some point, but this is really just a guess. Is there currently any consensus about this? [link] [comments]  |
| Posted: 20 Oct 2016 05:35 AM PDT I was watching Crash Course Chemistry and watched the lateral SciShow video about how quarks are held together with strong force, which keeps protons together and also ties together the whole atom through nuclear force. When I got back to the video on the nucleus, however, Hank stated that neutrons are important because without them the protons would tear each other apart. Wouldn't the strong force be more likely to pull the protons in close? What force would be pushing the protons apart and creating a need for neutrons? [link] [comments]  |
| Posted: 19 Oct 2016 05:57 PM PDT |
| Posted: 20 Oct 2016 06:08 AM PDT |
| I quit smoking after 20 years. What is my body doing to heal itself? Posted: 19 Oct 2016 10:09 PM PDT How long for the heavy metals to leave my body? How long for my lungs to detox themselves? [link] [comments]  |
| Can we accurately calculate the rate at which heat will travel through an object? How do we do that? Posted: 19 Oct 2016 09:18 PM PDT For example, if I have a cup of coffee. How would I find out how quickly the heat will take to reach the outside of the cup? [link] [comments]  |
| Are the limits, or bounds, to the electromagnetic spectrum? Posted: 19 Oct 2016 08:40 PM PDT |
| Posted: 19 Oct 2016 06:37 PM PDT Very specific question, but I'm actually just curious. I recently learned of the condition from a female speaker and an event, and I looked it up on my own, to learn more, and one part I could never find was the heritability. Thank you in advance. [link] [comments]  |
| How do radio stations judge their number of listeners? Posted: 19 Oct 2016 06:02 PM PDT |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 19 Oct 2016 08:05 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary 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]  |
| Is there something like the "double dabble" algorithm, for trinary/base 3? Posted: 19 Oct 2016 09:26 PM PDT I want to use an algorithm to convert trinary (base 3) to trinary coded decimal. Is there such a thing? What's it called? (Maybe tripple trabble, idk). [link] [comments]  |
| Posted: 19 Oct 2016 11:59 AM PDT |
| Confusion about the inverse square law. Can someone please explain? Posted: 20 Oct 2016 06:22 AM PDT I'm just gonna warn anyone who loves and/or works in physics, now...this post is going to be straight cancer to your eyeballs. From what I know, 1 / distance2 is what determines the intensity of a light source, or gravitational pull, or whatever you're observing. I've heard, many times, by actual physisists, that the simplification is "Double the distance, divide the intensity by four." This is easily put into practice just by using a torch on a wall. If I stand a meter away from a wall, and hold a torch towards it, a part of the wall is lit up. If I stand two meters away from a wall, and hold that same torch towards it, four times the area is being lit up, but it's (roughly) the same amount of photons. By the logic in the above paragraph, that means the same area that was being lit up when I was standing one meter away is only being hit by a quarter of as much light, right? That all makes sense to me, but when you turn what you're observing into gravity, my brain has a fit. So, if I double my distance from Earth, I'll divide its gravitational pull on me by four? I'm currently sitting on a chair, with my feet up on my desk, suspended about 60cm from the ground. So, if I run this through a calculator with that equation up the top of this post, I get ~0.00027. Let's times that by Earth's surface gravity (9.8m/s, but because I punched in 60cm, not 0.6m, I'll convert it to 980cm). Interesting. I get 0.2646cm. So...Earth's current gravitational pull on me is 2.6mm/s? But it's not, otherwise I'd be knocking myself out on my roof every time I farted. Hell, if I double my distance, again, so I'm 1.2m away, its gravitational pull should be 0.65mm. Can you see where my confusion is coming from? Keep in mind, try to keep any explanations simple for my layman, little mind. Just a side, but related question, if anyone knows, is there a simple equation I can punch into a calculator that can determine how far away from an object you need to be in order for its gravitational pull on you to be almost 0? I know that it can never be 0, because gravity will always affect you no matter how far away you are, but, for example, I'm working with limited decimal places, like 3. I mean, in the real world, once the gravity is as low as 0.001m/s, and you increase the distance further, it's going to go to 0.00099999999999999--etc, but if I'm working with 3 decimal places, maximum, it will just become 0.000. Say I make up a fake planet with a random surface gravity off the top of my head. I'll choose 20.9m/s. Is there an equation I can pop into my calculator with "20.9" somewhere in it , that will spit out the distance from the planet a fictional rocket would have to be in order for that gravitational pull to be less than 0.001? [link] [comments]  |
| Could a single molecule of water conduct electricity? Posted: 19 Oct 2016 06:19 PM PDT AFAIK, Metal is a good conductor because it has a sea of delocalized electrons that are able to move charge across it. So, in theory, since water is covalently bonded, and the hydrogens, and oxygen, are "sharing" electrons, a single molecule of water should be able to conduct electricity. [link] [comments]  |
| Do nyctinastic plants absorb the same amount of sunlight when closed? Posted: 20 Oct 2016 06:12 AM PDT I raise tropical bonsai, and have a Tamarind with curious leaves that close and make me feel weird for leaving the light turned on. [link] [comments]  |
| Is there a need for a larger particle accelerator? Posted: 19 Oct 2016 07:09 PM PDT Do bigger accelerators mean better results? Is there even a plateau for how large one can be and still be an improvement? Is there anything we could even discover with them after the Higgs Boson particle? [link] [comments]  |
| How fast is lightning in a vacuum? Posted: 19 Oct 2016 05:17 PM PDT Been wondering if it's the same as the speed of light, I would assume not but thought I'd ask. [link] [comments]  |
| Posted: 20 Oct 2016 05:00 AM PDT Wouldn't the strength of the fundamental forces decrease at equal rates? IE, if there is an electromagnetic force of 5 arbitrary units (AU), and it decreases by 1 AU over 1 arbitrary distance (AD), then a strong nuclear force of 5 AU would also decrease by 1 AU over 1 AD. [link] [comments]  |
| How does molecular structure search work? Posted: 19 Oct 2016 10:19 AM PDT How does molecular structure searches like PubChem work? I had assumed they were using Smiles but a number of smiles can be obtained from a given molecule which would not work with a simple string search. Does it convert molecular data into a different format that allows substructure search? [link] [comments]  |
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