Is dark energy in any way related to the inflation that took place in the early universe or are they completely different processes? |
- Is dark energy in any way related to the inflation that took place in the early universe or are they completely different processes?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- Whats the relation of entropy in physics and entropy in information theory?
- Is there genetic drift in organisms that clone themselves?
- Can chronic hepatitis B affect growth of children?
- If I were to launch a trebuchet on Earth and the moon straight up, since gravity is affecting both the potential energy on the weight and the force pulling the stone down, would there be a difference in final height?
- Are anti-inflammatory foods immunosuppressive? Or can anti-inflammatory events in the body still happen without affecting the immune system?
- Does the brain "discard" of a lot of the information that it receives from the retina? How exactly does it "discard" it? Why exactly does it discard it?
- Why is lead the go to element when it comes to radiation shielding? If its to do with the density of the element, why aren't denser elements used?
- How do they plumb large radio and/or large transmission towers?
- What is the ‘curvature of spacetime?’
- A speech pathologist claims she trained her dog to talk by pushing buttons that play words. Does this really count as "speaking" according to science?
- How does a ribosome find the start codon?
- What have we learned from the Parker Solar Probe so far?
- How are “bits” stored in computer memory?
- How come dogs can be so different in size and weight while still being the same species (breedable when physically possible)?
- Why are some people immune to certain anesthesia?
- How do humans and other animals keep track of time?
| Posted: 19 Nov 2019 04:29 PM PST Basically the title. I want to know what part, if any, dark energy played in the inflation of the universe. [link] [comments]  |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 20 Nov 2019 07:08 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]  |
| Whats the relation of entropy in physics and entropy in information theory? Posted: 20 Nov 2019 06:01 AM PST In thermodynamics entropy seems to be a measurement of stored enery per volume(or mass? or per system?) and in infromation theroy entropy is a measurement of information density. Both formulas seem to be very similar(an intergal/sum of all posible states) but ive never bee able to make the connection in meaning. Thermodynamic enropy incrases over time, can the same be said about informational entropy or is there an analogy in information theory for this increase? [link] [comments]  |
| Is there genetic drift in organisms that clone themselves? Posted: 19 Nov 2019 10:43 PM PST Specifically, the Pando Aspen tree colony is said to be single organism sharing a single root system; If an organism like this happened to grow its way around a large lake, would the two far distal ends of it be genetically identical? There must be some genetic drift. Could it become a ring species with two distinct genotypes at the far ends? [link] [comments]  |
| Can chronic hepatitis B affect growth of children? Posted: 20 Nov 2019 06:05 AM PST |
| Posted: 19 Nov 2019 08:13 PM PST |
| Posted: 19 Nov 2019 10:41 PM PST |
| Posted: 19 Nov 2019 09:05 PM PST Someone said this to me:
Does this "information discarding" happen in the case of other senses? What about hearing, touch, taste, smell, etc.? [link] [comments]  |
| Posted: 19 Nov 2019 11:07 PM PST |
| How do they plumb large radio and/or large transmission towers? Posted: 19 Nov 2019 06:15 PM PST I'm putting up a 50' tower for a wind generator, and that has been a challenge to plumb perfectly. Towers are generally tapered so there's no perpendicular edge as a reference. For that matter, how do they plumb anything tapered, like a telephone pole? [link] [comments]  |
| What is the ‘curvature of spacetime?’ Posted: 19 Nov 2019 02:59 PM PST In General Relativity, gravity is the curvature of space time, and it makes sense to me how objects can move as a result of the curvature of space, but I'm having a hard time (hah) seeing how time gets into the picture. Specifically, what does it mean to say that time 'curves'? Curviness is a spatial property, by definition. Is it a metaphor for something deeper? Or am I totally missing the point of general relativity? [link] [comments]  |
| Posted: 19 Nov 2019 11:25 AM PST This video from CNN features a dog named Stella that's been trained to push buttons, and when the buttons are pushed, a spoken word is played. The owner, a speech pathologist, claims she has taught her dog to speak. There's several more videos on the owner's YouTube channel and blog. Scientifically speaking, does this actually count as speech? What are the accepted criteria for an animal possessing and using language and/or speech? [link] [comments]  |
| How does a ribosome find the start codon? Posted: 19 Nov 2019 01:03 PM PST In my biology class we are learning that the ribosome has to begin on a start codon in order to begin the process of translation. My question is how does the ribosome find the start codon, is the mRNA read one base at a time in the ribosome, or groups of three, or is there some other molecule that positions the mRNA correctly in the ribosome to begin with? [link] [comments]  |
| What have we learned from the Parker Solar Probe so far? Posted: 19 Nov 2019 06:36 AM PST I just watched the documentary "Mission to the Sun", about NASA's Parker Probe, designed to get close to the Sun and learn about the solar environment. The documentary came out before Parker's first pass, and according to NASA's blog ( https://blogs.nasa.gov/parkersolarprobe ), it has now made 3 passes and data from the first 2 have been made public. What insights have we learned from the mission so far? [link] [comments]  |
| How are “bits” stored in computer memory? Posted: 19 Nov 2019 01:31 PM PST How are "bits" stored in computer memory? Surely a memory isn't a vault where 0s and 1s are locked. So what IS memory exactly? Additionally, memory-as-abstraction is understandable but how do tape, CD (metal), and "solid state" store anything? Please humour me here as I am really perturbed. I have understood basics of Panpsycism but not computing. I don't do well if I do not get an expansive bird's-eye view, and I haven't got one in electronics and computing. So further additionally, 1. Is "Computing" and "Computer Science" a hard-science or rather a technique/ heuristic/ culture/ convention/ framework/ art? Was computing/ computer science "invented" or "discovered"? 2. Is there a book that explains - even if superficially - EVERYTHING about computers - from voltage, to bits, to memory, to assembly, to code, to machine learning, and now biological and quantum computing? 3. Can computers be coded in binary - or rather by taking a switch and turning it on and off with a certain rythem? 4. What are assemblers? 5. How were programming languages made? If programming languages are made on preexisting programming languages then how were those preexisting programming languages made? 6. Can new computer architecture be made? 7. Why is Silicon so special? 8. Why is computing and coding so English-heavy? Many thanks! [link] [comments]  |
| Posted: 19 Nov 2019 04:47 AM PST |
| Why are some people immune to certain anesthesia? Posted: 19 Nov 2019 04:49 AM PST I wanted to know scientifically why some anesthesia (Propofol) have no effect on people while another one does? [link] [comments]  |
| How do humans and other animals keep track of time? Posted: 19 Nov 2019 04:36 AM PST |
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