Why do people say “conserve water” when it evaporates and recycles itself? |
- Why do people say “conserve water” when it evaporates and recycles itself?
- If you put magnets in water, what kind of charge does the water take on?
- [space] Can SpaceX Dragon boost / lift-up the ISS?
- Why do we feel a pumping or throbbing sensation when we have an injury such as a cut?
- Many materials which are electrically conductive are also thermally conductive. Is there a relationship between these two properties at the atomic level?
- If you water a fruit with sugar water will the fruit become more sweet?
- If a laser beam is shot directly into space and swung in a parabolic motion, would the beam be heavily curved due to the speed of light?
- Are great white sharks' gums in pain?
- Differences between geosynchronous and geostationary orbit?
- Do people who have anxiety and/or depression dream less than people who don’t?
- Elon musk talks about using Water and Carbon Dioxide on mars to refuel rockets using a process called "Sabateir" why don't we do this on earth instead of using fossil fuels?
- Why do smaller animals have faster heart rates?
- What’s the gunk you get in your eyes in the morning? How does it get there?
- What is the process by which a patient's infection is determined to be viral or bacterial (and which virus or bacteria)?
- Why is Pluto's (and other dwarf planets) orbit so unusual?
- Why do fluorescence microscope have a higher resolution than optical microscopes, when both of them use light?
- Does Sound Travel Through Complex Spaces Equally in Both Directions?
- Why do some animals move in quick bursts (like chickens/small lizards) while others are more deliberate (like humans/bears)?
- How does Coke Zero manage to claim that they have 'no sugar'?
- Why are large physics detectors like LHC and Super K buried underground? Is it because they are dangerous?
- Would an atomic clock at the center of the earth remain in sync with one on the surface? And other time related question.
| Why do people say “conserve water” when it evaporates and recycles itself? Posted: 04 Mar 2019 10:02 PM PST We see everyone saying "conserve water" and that we shouldn't "waste" water but didn't we all learn in middle school about the water cycle and how it reuses water? I'm genuinely curious, I just have never understood it and why it matter that we don't take long showers or keep a faucet running or whatever. I've just always been under the impression water can't be wasted. Thanks! Edit: wow everyone, thanks for the responses! I posted it and went to bed, just woke up to see all of the replies. Thanks everyone so much, it's been really helpful. Keep it coming! [link] [comments]  |
| If you put magnets in water, what kind of charge does the water take on? Posted: 05 Mar 2019 04:24 AM PST Does it matter which way the magnets are facing? I have them on the bottom of a wash basin filled with water just deep enough to submerge my face in it. How could I measure the water to know its negative or positive charge for sure? Would submersion in negative charged water pull positive ions from my body's electromagnetic field? And/or would negative charged water increase the negative ions in my body's electromagnetic field? [link] [comments]  |
| [space] Can SpaceX Dragon boost / lift-up the ISS? Posted: 05 Mar 2019 03:28 AM PST I know that height at which ISS rotates the Earth decreases over time due to air resistance. I also found out that Space Shuttles and Soyuzes have been used to lift up the ISS in the past. [link] [comments]  |
| Why do we feel a pumping or throbbing sensation when we have an injury such as a cut? Posted: 04 Mar 2019 09:30 PM PST |
| Posted: 04 Mar 2019 08:09 PM PST For example, almost all metals are both electrically and thermally conductive, water is a little conductive, and most other materials are fairly good insulators. Are there materials that are very electrically conductive but not thermally conductive and vice versa? [link] [comments]  |
| If you water a fruit with sugar water will the fruit become more sweet? Posted: 05 Mar 2019 07:34 AM PST |
| Posted: 05 Mar 2019 02:22 AM PST I'm assuming the straight line of the laser would be interrupted over a great distance, though I'm not entirely sure how. [link] [comments]  |
| Are great white sharks' gums in pain? Posted: 04 Mar 2019 08:15 PM PST After seeing this on /r/natureismetal , I was reminded of a question I've had ever since "Jaws" in 1975. Do great white sharks' gums hurt? They've always got these huge jagged teeth ripping through them. It looks freaking painful. [link] [comments]  |
| Differences between geosynchronous and geostationary orbit? Posted: 05 Mar 2019 06:54 AM PST Hi, I was wondering if anyone could explain the difference between a geosynchronous and geostationary orbit (as well as any other orbits types that I may not be aware off). I'm also curious as too how comets achieved elliptical orbits and if this could be replicated with an artificial satellite on a planet and if so, how. Thanks! [link] [comments]  |
| Do people who have anxiety and/or depression dream less than people who don’t? Posted: 05 Mar 2019 04:36 AM PST |
| Posted: 04 Mar 2019 04:14 PM PST He mentions changing H2O & CO2 into CH4 & O2, which can then be used to refuel rockets. Why aren't we doing this on earth to save using fossil fuels? [link] [comments]  |
| Why do smaller animals have faster heart rates? Posted: 04 Mar 2019 08:12 PM PST I'm watching The Zoo on Animal Planet and they had an otter with a heart rate of 160 BPM. [link] [comments]  |
| What’s the gunk you get in your eyes in the morning? How does it get there? Posted: 04 Mar 2019 09:54 PM PST |
| Posted: 05 Mar 2019 03:26 AM PST Is there a particular machine that reads sputum/blood samples or is this all done under the microscope by an individual one by one (in which case how do they differentiate all the different types of non disease causing microbes?). [link] [comments]  |
| Why is Pluto's (and other dwarf planets) orbit so unusual? Posted: 05 Mar 2019 07:10 AM PST Every planet in our solar system seems to have a "normal" orbit (I mean that as they are all aligned with each other and the Sun), then sudenly Pluto's orbit is out, like it sliped or something. It also goes through Neptun's orbit and I found that weird. The same (an unusual orbit) also goes for other dwarf planets. (I am also sorry for english (it's my second language) and the wording, but I don't know how to express this differently). [link] [comments]  |
| Posted: 05 Mar 2019 07:05 AM PST |
| Does Sound Travel Through Complex Spaces Equally in Both Directions? Posted: 04 Mar 2019 07:13 PM PST Sorry for the title gore, I really don't know how to word my question. What I am essentially asking is would a sound created in point A and measured at point B be the same as a sound created at point B and measured at point A, even when there are obstructions, echos etc? For example, I can hear people talking in the living room very clearly from my bedroom. It seems to travel up the staircase and through my bedroom door. Does that mean that if I'm talking at the same volume, that it would travel through my bedroom door, down the staircase to the living room - and I would sound just as clear to them as they do to me? [link] [comments]  |
| Posted: 04 Mar 2019 09:29 PM PST |
| How does Coke Zero manage to claim that they have 'no sugar'? Posted: 04 Mar 2019 10:25 PM PST A legitimate question I've actually been wondering, and I couldn't figure out which 'r/' to put it on. I've heard from somewhere that it's a thing called 'Acesulfame Potassium', but I'm honestly not too sure if it's true. Thanks. [link] [comments]  |
| Posted: 04 Mar 2019 11:48 AM PST |
| Posted: 04 Mar 2019 06:32 PM PST First I just want to say I am not a smart person, I started working before finishing high school, so I appreciate as much "dumbing down" as possible. The more I read about time dilation the more it blows my freaking mind! It got me wondering if the weird gravity in the center of the earth would cause any funny business or if it's just a matter of speed. Additionally I have read quite a few of the explanations of time dilation being described when one reference point is the earth, and another a ship. Basically a ship going light speed experiences less time than earth so the people would age less on-board the ship than the people they leave behind. But what about if both reference points remain on the planet? Would the same apply to an earth bound hovercraft for instance? Or some sort of nifty suit? This is where it seems really counter intuitive for me, because if I am able to move at absurd speeds relative to the rest of the people, would they not appear frozen in time instead of accelerating through it? [link] [comments]  |
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