Can you feel the difference between low and high oxygen concentration levels? |
- Can you feel the difference between low and high oxygen concentration levels?
- Is there any mathematical proof that was at first solved in a very convoluted manner, but nowadays we know of a much simpler and elegant way of presenting the same proof?
- Why do Sloths move so lethargically?
- How do we currently measure the age of galaxies?
- Is there an equation that would tell me when the sun is up or down based on my location, month, day, and time? I want my phone to do so some stuff every day based on whether it's dark or not at certain times.
- Can mountain and lowland gorillas interbreed?
- Does our Moon control the rotation speed of the Earth?
- Why have I heard that increasing the amount of lanes on the road won’t stop traffic jams?
- Do just liquids have pH? Or do all states of matter?
- What is the impact of air travel on weather patterns?
- Are there any products/processes that would benefit from being manufactured in a microgravity environment?
- Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
- Why chickenpox symptoms tend to be worse in adults than in children?
- Are there any (relatively) accurate maps of Earth during the Last Glacial Maximum?
- Are water reservoirs always placed at a higher elevation than the regions they supply? Or do pumping stations do a lot of the work that gravity doesn’t?
- Why do whales breach?
- How do fitbits measure heart rate?
- How do physicists come up with equations?
- Why is 68% of all land mass in the Northern Hemisphere while less than half of that (32%) is in the Southern Hemisphere?
- How does an object get electrocuted by sharing a body of water with an electric circuit?
| Can you feel the difference between low and high oxygen concentration levels? Posted: 27 Feb 2018 09:13 PM PST Say your room had the usual about 20% oxygen levels in the air. If you had an air purifier or pump hooked up to an oxygen tank to get the levels up to around 95-100% oxygen, would you feel any noticeable difference in breathing? Would it be easier to breathe? What kind of fire hazards would there be? Thanks. EDIT: Since apparently having the oxygen levels too high is dangerous, what if it were raised above 20% but below 80%? [link] [comments]  |
| Posted: 28 Feb 2018 04:21 AM PST |
| Why do Sloths move so lethargically? Posted: 27 Feb 2018 05:49 PM PST |
| How do we currently measure the age of galaxies? Posted: 27 Feb 2018 07:56 PM PST Does the size of the black hole at its centre have any relation to its age? [link] [comments]  |
| Posted: 28 Feb 2018 03:33 AM PST Living in Canada, sunrise and sunset times vary quite a bit in different seasons. I imagine there should be some kind of polynomial, unique to my latitude, that takes into account the month, day, and time that is, say, positive if it's daytime and negative if it's nighttime. Does any such thing exist? [link] [comments]  |
| Can mountain and lowland gorillas interbreed? Posted: 27 Feb 2018 06:43 PM PST If so, has this ever happened? What would the result be like? [link] [comments]  |
| Does our Moon control the rotation speed of the Earth? Posted: 28 Feb 2018 06:17 AM PST |
| Why have I heard that increasing the amount of lanes on the road won’t stop traffic jams? Posted: 28 Feb 2018 03:15 AM PST My city council is proposing to add an extra lane on the freeway in order to combat the traffic that congests during peak hours. However, I've heard that adding an extra lane won't actually stop a traffic jam. What is the science behind this? [link] [comments]  |
| Do just liquids have pH? Or do all states of matter? Posted: 28 Feb 2018 05:58 AM PST I only ever see pH being talked about with liquids. Could a solid or gas have pH? Is it just that we can't measure the pH of the other states of matter, or does a material simply lose the property of pH when it freezes or boils? If they still have a pH, how would we measure it? And if the pH is not measurable when in a non-liquid state, can we just liquify it and then measure the pH? Does this measured pH still apply once we then freeze or boil the liquid? [link] [comments]  |
| What is the impact of air travel on weather patterns? Posted: 28 Feb 2018 05:51 AM PST I've often wondered if airports and flight paths create enough disruption to natural airflow to change weather's patterns, does this happen? If so, is the same or similar experienced with road vehicle movements too? (Not sure if the flair is right for this topic, can change if needed) [link] [comments]  |
| Posted: 28 Feb 2018 05:04 AM PST NASA astronauts returned to earth yesterday from the ISS, and some of their research included investigations into the manufacturing of fiber optic filaments in microgravity. This got me wondering if any other kinds of manufacturing could be improved in microgravity. [link] [comments]  |
| Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 28 Feb 2018 07:07 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology 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]  |
| Why chickenpox symptoms tend to be worse in adults than in children? Posted: 28 Feb 2018 06:37 AM PST |
| Are there any (relatively) accurate maps of Earth during the Last Glacial Maximum? Posted: 28 Feb 2018 04:51 AM PST I've seen small maps of areas like Doggerland, but I was hoping to find something of the entire planet. I'm particularly interested in what Florida looked like; I know the Gulf to the west of Florida is relatively shallow. [link] [comments]  |
| Posted: 27 Feb 2018 05:45 PM PST |
| Posted: 28 Feb 2018 06:11 AM PST Title. I couldn't get a concrete answer on Google and hoping for your insights. [link] [comments]  |
| How do fitbits measure heart rate? Posted: 28 Feb 2018 05:39 AM PST Hi all! Older heart rate monitors (and many cardio machines today) used pairs of metal contacts. Fitbits (and other modern wearable heart rate monitors) use what seems to me like a CMOS sensor and two green LEDs. How exactly is the device measuring my heart rate? How accurate is it? How reliable (depending on where it is on my arm or how tight it is, etc) is it? EDIT: I was torn between the Engineering flair and the human body one. I'm more interested in the device's way of function, so I chose Engineering. [link] [comments]  |
| How do physicists come up with equations? Posted: 27 Feb 2018 03:53 PM PST I'm asking because I've always wondered how they came up with the relationship in equations like in Boyle's law or with Newton's gravitational equation. Did they just try random dimensions of variables, do they base if off of observed phoninina or is there some method I don't know about? [link] [comments]  |
| Posted: 27 Feb 2018 03:07 PM PST |
| How does an object get electrocuted by sharing a body of water with an electric circuit? Posted: 27 Feb 2018 08:31 PM PST If the circuit is closed, wouldn't the easiest path for electricity be through the circuit? [link] [comments]  |
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