Why does a compressed natural gas tank have expiry date on it? Does it mean it's no longer safe to use after the expiry date? |
- Why does a compressed natural gas tank have expiry date on it? Does it mean it's no longer safe to use after the expiry date?
- How/why does the body “get used to” cold or hot objects after being in contact for a while?
- Chemically, why was the Fat Man more powerful than the Little Boy? (The nuclear bombs dropped on Hiroshima and Nagasaki)
- Does a rainclouds movement and velocity affect its rainfall?
- Where any black holes created immediately after the Big Bang?
- Why does our immune system not detect and fight off the bodies own cancer?
- How come there are no accurate computer models of wetlands?
- If copper has the best thermal conductivity, why are some computer coolers made out of copper and aluminium, and not just copper?
- What is heat?
- Is there coulomb repulsion between neutrons within a nucleus?
- How do contact lenses automatically slide to your iris/pupil?
- Are we sweating while swimming?
- Do nuclear weapons expire?
- How were special relativity and quantum mechanics conflicting before quantum field theory, and what does QFT do to resolve them?
- How does the human body react to tattoos?
- Physicists or physical chemists: what is a surface plasmon?
- Why is download speed faster than upload speed?
- How does scratching the skin remove the itchy feeling?
- How do you contain tokamak energy when it is hotter than the sun?
- Can a superfluid be compressed?
- Why does Enceladus have geysers made of water and ice spewing from its surface whereas Europa does not? Is there any known reason which explains this notable discrepancy between these two moons?
- Do gas giants really have a surface?
| Posted: 06 Jun 2018 11:07 PM PDT I live in a country where I could use compressed natural gas (CNG) as my vehicle fuel instead of petroleum. So I have a CNG tank installed in my boot 9 years ago. The CNG tank's expiry date is reaching soon, I should definitely go for inspection, but does the expiry date means anything at all? I already Google the question, but the top results don't really provide any information about what happens when the CNG tank "expired". [link] [comments]  |
| How/why does the body “get used to” cold or hot objects after being in contact for a while? Posted: 06 Jun 2018 09:22 PM PDT Is it that the body moves the temperature to the bodies temperature? Or does that body actually get used to it? Is it the skin touching the object 'numbing', or is it a mental change? Thanks! [link] [comments]  |
| Posted: 07 Jun 2018 08:09 AM PDT |
| Does a rainclouds movement and velocity affect its rainfall? Posted: 07 Jun 2018 06:02 AM PDT |
| Where any black holes created immediately after the Big Bang? Posted: 06 Jun 2018 09:43 PM PDT Edit subject: "Were" - not "Where"... Could it be possible all of the supermassive black holes at the center of today's galaxies are remnants of the Big Bang? Also could it be possible that there was not a single point in the cosmos that started it all but instead each supermassive black hole played a part in the inflation of the universe? Is it possible all of the supermassive black holes in the early Universe were able to eat the inflation of matter and space but the big bang in fact was the turning point where all of these supermassive black holes could no longer consume SpaceTime fast enough? [link] [comments]  |
| Why does our immune system not detect and fight off the bodies own cancer? Posted: 06 Jun 2018 10:42 PM PDT |
| How come there are no accurate computer models of wetlands? Posted: 07 Jun 2018 05:19 AM PDT We have good models for weather, crops, e.t.c. it just seems to me that science is lacking, especially for an ecosystem that provides many benefits. [link] [comments]  |
| Posted: 07 Jun 2018 08:35 AM PDT |
| Posted: 07 Jun 2018 08:21 AM PDT |
| Is there coulomb repulsion between neutrons within a nucleus? Posted: 07 Jun 2018 07:15 AM PDT Neutrons are of course electrically neutral. But since neutrons are constituted of 2 Down and 1 Up quark, both having fractional electric charges, is there any coulomb interaction between two neutrons that are very close to each other (like in a nucleus)? I would imagine that there should be something like charge displacement within the neutrons due to the presence of the charged quarks of the other nuclei (induced eletrical dipole like with Van-der-Waals interaction). On the other hand I'm pretty sure the strong interaction in this regime is so much stronger that this coulomb interaction is neglectable. Are the charges of the quarks even meaningfully localized within the neutron or is it like a homogeneous state where there's not even the possibility of having a charge displacement? [link] [comments]  |
| How do contact lenses automatically slide to your iris/pupil? Posted: 06 Jun 2018 07:25 PM PDT |
| Are we sweating while swimming? Posted: 06 Jun 2018 03:57 PM PDT Or does the body get cooled enough from the water, so that we don't have to sweat? [link] [comments]  |
| Posted: 06 Jun 2018 10:08 PM PDT I would certainly hope so, considering there's really no ethical way of disposing them. [link] [comments]  |
| Posted: 06 Jun 2018 10:20 PM PDT |
| How does the human body react to tattoos? Posted: 06 Jun 2018 05:35 PM PDT I mean, i know that tattoos are made with some sort of incision and the ink is sort of injected into a layer of the skin, but why doesnt the body fight the ink with antibodies or something, and if it does, why doesnt the body erase the ink or at least reject it? [link] [comments]  |
| Physicists or physical chemists: what is a surface plasmon? Posted: 06 Jun 2018 08:26 PM PDT An undergrad researcher here doing work with gold nanoparticles. In solution they are a dark red color, with the hue depending on the diameter of the spheres. The only explanation I have found so far is "surface plasmon resonance" saying that a plasmon is a collective oscillation of the electron sea - what does this mean and how does it correlate to the surface of the sphere and the color of solution? [link] [comments]  |
| Why is download speed faster than upload speed? Posted: 06 Jun 2018 06:07 PM PDT I recently did a speed test for my internet, and I was wondering why there is such a large difference between upload speeds and download speeds. [link] [comments]  |
| How does scratching the skin remove the itchy feeling? Posted: 06 Jun 2018 05:28 PM PDT |
| How do you contain tokamak energy when it is hotter than the sun? Posted: 07 Jun 2018 03:02 AM PDT So recently a fusion reactor achieved temperature hotter than the sun. How do you contain this without it melting everything around it? I understand magnetism has something to do with it, which makes sense because nothing is touching but doesn't heat still radiate outwards? Or does the magnetism prevent the radiation spreading which means you can stand next to something millions of degrees and not feel the heat? [link] [comments]  |
| Can a superfluid be compressed? Posted: 06 Jun 2018 05:48 PM PDT |
| Posted: 06 Jun 2018 10:12 AM PDT Both moons are believed to have their own global oceans underneath their icy crusts and scientists reckon that these oceans exist due to gravitational tugging from their parent planets. Why does one of these two moons have jets of water and ice while the other one does not? [link] [comments]  |
| Do gas giants really have a surface? Posted: 07 Jun 2018 02:17 AM PDT |
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