Is a neutron star a perfect electrical insulator? |
- Is a neutron star a perfect electrical insulator?
- What noise reduction and smoothing algorithms are good for filtering thermistor-based temperature data?
- What is the speed of electricity?
- Why is antivenom fast acting, while vaccines take a couple weeks to provide immunity?
- At the supermarket bulk coffee selection, they have coffees from different regions of the world. Are those regions growing different species of coffee? In other words, is what makes coffee distinctive WHAT is grown, or HOW it grew (soil and temperature wise)?
- Given that famotidine does not decrease gastric emptying rate, why does it decrease the effectiveness of lactase supplements?
- What are Wigner Functions used for in Quantum Optics?
- Why oyster shells are "irregular"?
- [Astronomy] What is happening with Betelgeuse – and how "unique" is what we are currently observing?
- If I drink a pint of water, how much of it is absorbed into my body becoming part of my organs and blood versus being excreted as urine or sweat?
- Does a twin have increased chance of having twins?
- If the fastest that neurons can oscillate at is a few hundred Hz, then how can we hear and process sound frequencies up to ~20,000Hz?
- I know about the cold shock response but is it possible to have a warm shock response if the body is suddenly submerged in very warm water?
- Why does the flame of a candle not spread from the wick to the molten wax around it?
- How do eradicated/mostly eradicated viruses come back?
| Is a neutron star a perfect electrical insulator? Posted: 26 Dec 2019 03:43 AM PST Neutron stars don't contain any electrons, right? Does that mean that they have precisely zero electrical conductivity? Or is it more complicated than that? [link] [comments]  |
| Posted: 26 Dec 2019 02:27 AM PST Hello folks, Title says it all, but to clarify I am looking for a good algorithm to reduce noise and smooth out data coming from a thermistor sensor that is monitoring the temperature of a hot-water pipe. Data points are separated in time by 5 minutes to one hour. I would prefer an algorithm that does not cap min/max values. Complexity or memory / CPU consumption is not an issue. The algorithm does not need to be predictive, as all the necessary data is already there. Cheers, Mike [link] [comments]  |
| What is the speed of electricity? Posted: 25 Dec 2019 08:01 AM PST We know the speed of sound. We know the speed of light. Do we know the speed of electricity? It appears instant, but it can't be the speed flight because electrons have mass and therefore can't reach that speed. (right?) I know many factors go into current and voltage and all that, so let's just assume basic, household electricity: 120 volts, 14 gauge solid copper wire, distance of 20 feet (switch to ceiling light). How fast does the electricity move from the switch to the light? [link] [comments]  |
| Why is antivenom fast acting, while vaccines take a couple weeks to provide immunity? Posted: 25 Dec 2019 06:23 PM PST From what I understand, it seems like antivenom and vaccines are made through the same process (injecting an animal with the pathogen and isolating the antibodies). So why is antivenom used as a "fast fix" to snake bites, while getting a vaccine when you've already caught the virus isn't really effective, and you normally have to wait like two weeks to see immunity? Edit: along the same lines, why doesn't exposure to antivenom lead to immunity to venom? [link] [comments]  |
| Posted: 25 Dec 2019 09:48 PM PST |
| Posted: 25 Dec 2019 03:38 PM PST People who are lactose intolerant often use lactase pills when having dairy (taken a few minutes before the dairy) to manage the intolerance. However, it has been reported that (for those who also have GERD), if they take a Pepcid (famotidine) prior to a dairy meal - even though they use lactase pills, they end up suffering as if they never took any lactase at all. Originally, I thought this was because the Pepcid was slowing down the digestion, so the lactase wasn't hanging around long enough to be effective. However, doing some research led me to discover that Pepcid doesn't delay the gastric emptying rate (1). That being the case, can someone with a better knowledge of biology explain to me why Pepcid causes this effect?
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| What are Wigner Functions used for in Quantum Optics? Posted: 25 Dec 2019 05:46 PM PST I've recently been studying Wigner Functions for my Master's degree and most of the examples I find are in Quantum Optics. I don't know much about Quantum Optics nor I have the time to study it now, but Wigner Functions are hella fun and I'd like to know more about them [link] [comments]  |
| Why oyster shells are "irregular"? Posted: 25 Dec 2019 09:17 AM PST My new favourite pastime is watching coastal foraging videos on youtube and I noticed that oysters look very different from other clams. Oyster shells are very irregular, uneven and bumpy. Why is this a thing? What are the benefits of having a "weird" shell? And most importantly, what is the cause? A random mutation caused a malfunction on "shell making gene" and oysters went "eh, this is my life now" or is there a sensible explanation? [link] [comments]  |
| [Astronomy] What is happening with Betelgeuse – and how "unique" is what we are currently observing? Posted: 24 Dec 2019 11:03 PM PST Apparently Betelgeuse is about to go supernova – or at least if you believe what non-science media has to say about it. The star has dimmed by a factor of two in the span of two months, and that's all the general public knows (though we don't even know what "dimmed by a factor of two" does indeed mean). What we don't know is whether that's even newsworthy. So my general question is – just what is happening to Betelgeuse? • How significant is the dimming? What does "dimmed by a factor of two" mean in the context of Betelgeuse? Can you put that into perspective? • From the perspective of its giant size, how significant is the speed — the star went so dim so quickly, effectively under two months? • We don't have historical data that goes beyond 300 years back. How likely is the possibility Betelgeuse has been dimmer in the past? • Is this process observable with naked eye by the general public? And, most importantly: • Apart from "about to go Supernova", what might be some processes that can explain the change? [link] [comments]  |
| Posted: 24 Dec 2019 10:39 PM PST |
| Does a twin have increased chance of having twins? Posted: 24 Dec 2019 08:40 PM PST Im a guy and twins run quite heavy in my family both my dad and his brother have twins and I've been told triplets are in my family as well. So my question is do I have an increased chance of having twins or triplets. I know it might sound stupid to some of you but it said worry of mine any help is appreciated. [link] [comments]  |
| Posted: 24 Dec 2019 04:57 PM PST |
| Posted: 24 Dec 2019 02:23 PM PST |
| Why does the flame of a candle not spread from the wick to the molten wax around it? Posted: 24 Dec 2019 06:00 PM PST |
| How do eradicated/mostly eradicated viruses come back? Posted: 24 Dec 2019 07:17 PM PST Spurred by the news of the first confirmed case of Measles in the Austin Texas area in 20 years. I believe most viruses can't live outside a host for extended periods of time. How does something that hasn't infected a person in that region for 20 years suddenly show up? Where do the first viral cells come from to infect someone? [link] [comments]  |
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