Do all caterpillars turn in to butterflies? |
- Do all caterpillars turn in to butterflies?
- Why bad HDMI connection causes pink lines on a screen?
- Why is precipitate hardening preferred to work hardening for the strengthening of aluminium?
- Does continental drift affect tunnels and bridges?
- We take out salt from the sea water by evaporating the water,which leaves salt and other substances behind,so the steam that goes in the atmosphere is relatively clean,Then why dont people solve the water crisis just like that?
- Does atom exists inside of a blackhole?
- What would the shadow of a black hole look like; a perfect sphere, blobby, or something different?
- What could we do to teraform Venus to allow life to exist on the surface?
- Why do we need a CMOS battery on the motherboard when we have permanent storage solutions like hard drives or SSDs?
- Why do younger main sequence stars tend to be bigger? Is there a mathematical function that relates the temperature of a main sequence star with its (approximate) radius?
- How can a place like San Diego maintain nearly the same temperature all year round?
- In polling, and other surveys, how can such small sample sizes be accurately extrapolated to a whole population?
- If there is so much dark matter, shouldn't it form objects?
- Why is it easy to either completely close or open our eyelids, but takes effort to keep them half-open?
- What is the difference between temperature and pressure?
- Do ligaments and tendons get stronger the more you workout?
- How would the world change if our atmosphere were lower?
- Why are there so few continental shelves?
- Is there a temperature point in ceramics when softening begins to occur?
- At what speed does voltage travel? (Not current)
| Do all caterpillars turn in to butterflies? Posted: 10 Sep 2019 03:20 PM PDT |
| Why bad HDMI connection causes pink lines on a screen? Posted: 11 Sep 2019 01:47 AM PDT So when you use a bad/broken HDMI cable there are sometimes pink lines or some colour get replaced by pink flicker. Why is that? (from a technical standpoint) [link] [comments]  |
| Why is precipitate hardening preferred to work hardening for the strengthening of aluminium? Posted: 11 Sep 2019 12:07 AM PDT |
| Does continental drift affect tunnels and bridges? Posted: 10 Sep 2019 01:12 PM PDT Hi, I just saw in r/worldnews about a potential bridge between Northern Ireland and Scotland. This made me wonder if continental drift would eventually affect this, which made me wonder if the same thing could happen to the channel tunnel. Could anyone help me with this? [link] [comments]  |
| Posted: 11 Sep 2019 01:06 AM PDT |
| Does atom exists inside of a blackhole? Posted: 11 Sep 2019 12:28 AM PDT I'm trying to imagine what it would look like if I somehow could take a spoon of things from inside blackhole (I know, not ever possible?). Is it possible to separate them (whatever I've found inside) from their collapsed state? Let me rephrase that, suppose we could run experiments with blackhole material with some super fictional machine. What sort of experiments we could run with this machine? [link] [comments]  |
| What would the shadow of a black hole look like; a perfect sphere, blobby, or something different? Posted: 10 Sep 2019 08:08 PM PDT |
| What could we do to teraform Venus to allow life to exist on the surface? Posted: 10 Sep 2019 11:49 PM PDT We often hear about theories of varying levels of craziness for how to restore Mars' atmosphere to make it habitable. What are some theories to strip the atmosphere from our sister planet to make it more hospitable to life? [link] [comments]  |
| Posted: 10 Sep 2019 12:54 PM PDT |
| Posted: 10 Sep 2019 09:15 PM PDT |
| How can a place like San Diego maintain nearly the same temperature all year round? Posted: 10 Sep 2019 08:19 PM PDT I always hear people talking about the weather out in San Diego, La Jolla was the specific place we spoke of. All this time I figured it still got hot in the summer but was simply more moderate in the winter. I searched the monthly weather averages and it fluctuates between a low of the 60's in the winter and mid 70's in the dead of summer. How is this possible? [link] [comments]  |
| Posted: 10 Sep 2019 08:31 AM PDT This example on the front page has a sample size of n=1,680 and the authors extrapolate the survey results to a population of 327 million (the current approximate population of the US). The surveyors/pollsters are only collecting data from 0.00005% of the country, how can meaningful results be extracted from such a small relative sample size? [link] [comments]  |
| If there is so much dark matter, shouldn't it form objects? Posted: 10 Sep 2019 11:37 AM PDT IIRC over 80% of all matter is dark matter. Shouldn't there be objects mostly or completly consisting of dark matter or even dark matter solar systems and galaxies? [link] [comments]  |
| Posted: 10 Sep 2019 03:15 PM PDT If the control of our eyelids was performed simply by a set of muscles, why would there be any difference in effort required to maintain the position? [link] [comments]  |
| What is the difference between temperature and pressure? Posted: 10 Sep 2019 12:24 PM PDT As I understand them, in a gas temperature is related to the kinetic energy its atoms and pressure is how hard those atoms hit their container. These seem to both be based on the speed of those atoms. So what I don't understand is how those two are distinguishable although I know they can and are measured separately. [link] [comments]  |
| Do ligaments and tendons get stronger the more you workout? Posted: 10 Sep 2019 06:48 AM PDT |
| How would the world change if our atmosphere were lower? Posted: 10 Sep 2019 09:20 AM PDT I recently read something that said that atmosphere is about 300 miles away. I assume it's thick (layers so to speak) and is closer than that to a point. But what would happen if the furthest part of our atmosphere were 200 miles away? 100? 50 even? This came from me overthinking the term "the sky fell" [link] [comments]  |
| Why are there so few continental shelves? Posted: 10 Sep 2019 11:18 AM PDT Hello everyone, I was just wondering why there are so few continental shelf regions. On most coasts there seems to be a direct correspondence with continental plate to oceanic plate boundaries. My idea was, that shelves that are newly formed by a sea level rise will be relatively rapidly filled up with sediments and thus "disappear". Is this actually the case or is it just a coincidence? [link] [comments]  |
| Is there a temperature point in ceramics when softening begins to occur? Posted: 10 Sep 2019 06:08 AM PDT There are so many indicating points in materials science that can act as gatekeepers for processes. Some of the easiest ones are that of phase transitions, but there are so many more when you did deeper. Off hand, I know there is the Curie point, Sintering point, isoelectric point, etc. Is there a point in the heating of materials where softening begins to occur? I realize that this is more complicated than just the words in the sentence because softening is not sintering and liquid/viscous phase sintering can appear as softening, but that's kind of what I want to see. If you heat a ceramic above it's burnout/firing temperature, it will begin to shrink, but not fail. This could be an effect of sintering. But if you keep going, I would think there is a point (like the yield point on a stress strain diagram) where properties begin to drop off exponentially. I guess this would be the point in application where people call it the "maximum use temperature" but I can't find any ASTM or DIN standard for maximum use temperature of high temperature ceramics. Any leads would be appreciated. [link] [comments]  |
| At what speed does voltage travel? (Not current) Posted: 10 Sep 2019 06:06 AM PDT Suppose you'd connect a wire to the hot terminal of a battery. The wire runs all the way to the other side of world and it's resistance is neglectable. Will there be a time delay (no matter how small) between connecting the wire to the battery and me being able to read a voltage between wire and ground at the other side of the world? How fast does voltage travel? [link] [comments]  |
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