What are the main complications stopping us from using nuclear fusion? |
- What are the main complications stopping us from using nuclear fusion?
- Why doesn't the glass inside optic fibers break?
- Why doesn't electromagnetism violate parity conservation?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- How does star size affect planetary characteristics?
- How do we know how much % of its fuel the sun has burned through?
- How come protons in a nucleus don't instantly "push" each other away but rather the nucleus decays over a long time?
- Today I saw the equation "PV=nRT". Why do the variables all match exactly? Why don't we have to multiply R by 1.25? Or P by 0.5?
- Is it possible to change the shape of a single molecule (stretching, compressing, flexing, etc.) without breaking the atomic bonds?
- How did China utilize quantum entanglement to transfer data?
- Why do energy levels converge at higher energies?
- Why can't we capture carbon with trees or technology?
- Does a Bragg curve apply to beta particles too?
- Have we figured out why electricity and magnetism so closely related?
- How efficient is a star's conversion of matter into energy?
| What are the main complications stopping us from using nuclear fusion? Posted: 03 Oct 2017 06:14 PM PDT |
| Why doesn't the glass inside optic fibers break? Posted: 04 Oct 2017 06:47 AM PDT |
| Why doesn't electromagnetism violate parity conservation? Posted: 03 Oct 2017 03:58 PM PDT The Wu experiment demonstrated that the weak force violated parity conservation because the direction of emission of electrons from cobalt atoms changed when an electrical coil around them was mirrored. But doesn't the same effect happen when you remove the cobalt and just look at the magnetic field produced by the coils? The magnetic field changes from pointing up to pointing down (or vice versa) when the coil's direction is changed, so the mirror image changes more than just the reflected coordinate. [link] [comments]  |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 04 Oct 2017 08:10 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Biology, Chemistry, Neuroscience, Medicine, Psychology 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]  |
| How does star size affect planetary characteristics? Posted: 03 Oct 2017 03:09 PM PDT I'm most interested whether the current model(s) of star/planet formation show any trends between star size and the characteristics of planets in orbit. For example, are larger stars expected to have more or fewer planets? Is there a negative or positive correlation between star and planet size? Are "Hot Jupiters" more or less likely with giant or dwarf stars? Answers to any and all of these questions would be very helpful since I've had a devil of a time looking them up. [link] [comments]  |
| How do we know how much % of its fuel the sun has burned through? Posted: 04 Oct 2017 04:12 AM PDT I understand that we can look at the sun and, through various methods (e.g. spectroscopy) determine its mass and composition. But how do we know that the sun has burned through (about) half of its fuel? Phrased another way: how do we know how much fuel it started with? [link] [comments]  |
| Posted: 04 Oct 2017 01:38 AM PDT |
| Posted: 03 Oct 2017 07:39 PM PDT It boggles my mind that everything is so.... perfect. Did n and R only come about because of this equation, and so were given arbitrary values that caught on? [link] [comments]  |
| Posted: 03 Oct 2017 09:30 AM PDT |
| How did China utilize quantum entanglement to transfer data? Posted: 04 Oct 2017 05:41 AM PDT |
| Why do energy levels converge at higher energies? Posted: 04 Oct 2017 05:26 AM PDT For example, in the emission line spectrum of hydrogen the lines of the different series converge because energy levels converge at higher energies. [link] [comments]  |
| Why can't we capture carbon with trees or technology? Posted: 03 Oct 2017 06:49 PM PDT |
| Does a Bragg curve apply to beta particles too? Posted: 03 Oct 2017 10:46 AM PDT I am currently working on my High School thesis about ionising radiation and while working on the penetration ability of the different types of radiation, I wondered: Does a Bragg curve apply to beta particles too? Or more specific: Is the relation between the stopping power and distance traveled of beta particles the same as alpha particles? Thanks in regard! (Apologies for any mistakes in term of grammar or vocabulary, english is not my native language) [link] [comments]  |
| Have we figured out why electricity and magnetism so closely related? Posted: 03 Oct 2017 08:30 PM PDT We know moving charges produce magnetic field and magnetic fields create emf. But have we figured out what causes this and why does it happen? [link] [comments]  |
| How efficient is a star's conversion of matter into energy? Posted: 03 Oct 2017 10:33 AM PDT What percentage of each hydrogen atom is actually converted to energy while undergoing fusion? [link] [comments]  |
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