Can we ever know the exact area of a circle if the decimal part of pi is infinite? |
- Can we ever know the exact area of a circle if the decimal part of pi is infinite?
- Are pigeons considered isolated in their respective cities?
- When people lose an arm or leg, how do their veins and arteries re-route their blood?
- Other than lightning strikes and lava, how do fires occur naturally?
- Why does oil shine in all rainbows colours when it is in contact with water like rain?
- Why bones in X-ray images are white but not black?
- Does the rate of gravity change from place to place? For example at higher altitudes does gravity get weaker?
- How long does it take for a magnetised solenoid core to return to residual magnetization?
- I know Blue Whales primary diet is krill because of their teeth, but if a larger fish ended up in their mouth would they be able to eat it?
- Why is it that there are many small earthquakes in one area?
- Alternative to electricity for power transfer (no wires)?
- Why shouldn’t you take pills on an empty stomache?
- How are we able to see the Milky Way from inside of it? (Middle school student here)
- Why high concentration of smoke makes sky red?
- When the earth rotates, do the clouds move with it? Or do clouds only move based on something else?
- Two containers containing different amounts of gasses are allowed to intermix. How quickly will they equalize?
- Can/do underground animals survive wildfires?
| Can we ever know the exact area of a circle if the decimal part of pi is infinite? Posted: 05 Jan 2020 05:45 PM PST |
| Are pigeons considered isolated in their respective cities? Posted: 05 Jan 2020 01:39 PM PST Or do populations fly between different cities and breed with each other? [link] [comments]  |
| When people lose an arm or leg, how do their veins and arteries re-route their blood? Posted: 06 Jan 2020 05:00 AM PST I am a kid from Sri Lanka, and I want to know. I want to follow up from this question here: If someone loses an arm, even if the wound heals over, it seems like there would be a problem with their blood suddenly having no route to or from their heart. Do doctors have to create a temporary channel for the blood to flow? People lost limbs before modern medicine, so I assume the body has a way to deal with it on it's own. [MY QUESTION] It sounds like you might use cauterization or some other such procedure. (I just learned what cauterization is. Thank you. Now, I need to remember how to spell it.) it sounds like the arteries will just take the blood to the end of the artery. And the veins will take the blood back. So, where do the arteries meet the veins? Is there some particular set of points? [link] [comments]  |
| Other than lightning strikes and lava, how do fires occur naturally? Posted: 06 Jan 2020 03:08 AM PST |
| Why does oil shine in all rainbows colours when it is in contact with water like rain? Posted: 06 Jan 2020 05:50 AM PST I have seen it plenty of times when I have filled my car with gas. [link] [comments]  |
| Why bones in X-ray images are white but not black? Posted: 06 Jan 2020 04:00 AM PST as a med student, i must be able to differentiate between Images that were taken by different imaging techniques. When X-ray imaging was first invented, the images of the bones were black and the background was white. why has this changed? Do they invert the color nowadays? [link] [comments]  |
| Posted: 06 Jan 2020 05:09 AM PST And if it does, does NASA use a localized rate of gravity for their equations, or is the difference so negligible that it doesn't matter? [link] [comments]  |
| How long does it take for a magnetised solenoid core to return to residual magnetization? Posted: 06 Jan 2020 04:36 AM PST So I've been researching about magnetic hysteresis and I can't seem to find out how to calculate the time it takes for a magnetised material to return to residual magnetization when the magnetic field is removed. Take a coil with an iron core for example. Is the magnetization of the core independent of time and only a function of the applied field? Is it even possible to remove the magnetic field in an instant, or does it cause voltage spikes? [link] [comments]  |
| Posted: 05 Jan 2020 10:51 AM PST |
| Why is it that there are many small earthquakes in one area? Posted: 06 Jan 2020 03:40 AM PST Hey science reddit! Wanted to ask because here in Puerto Rico these past few days (maybe about a week or so?), a sudden increase in earthquakes have been happening to around the southwest portions of the island. There have been, according to the news, 732 earthquakes with about 14 of them being 3.5 or higher on the scale; this morning we had one of 5.8 magnitude. This is super rare here, so I was curious! What causes that? What causes sudden spikes in earthquakes in a concentrade portion of an area? What causes there to be a ton of smaller magnitude ones and then one that's very intense? [link] [comments]  |
| Alternative to electricity for power transfer (no wires)? Posted: 05 Jan 2020 10:36 PM PST Is there anything that could potentially be an analog to electricity? Our whole society is built upon electricity but are there any other physical phenomena that could be used to readily transfer power? I understand this could be done with steam or air pressure as an alternative, but is there anything else? [link] [comments]  |
| Why shouldn’t you take pills on an empty stomache? Posted: 06 Jan 2020 05:46 AM PST Growing up my parents always told me never to take pills on an empty stomache as it could damage your stomache. Is this actually true? And if so, what negative effects are there to taking pills on an empty stomache. [link] [comments]  |
| How are we able to see the Milky Way from inside of it? (Middle school student here) Posted: 05 Jan 2020 07:34 AM PST |
| Why high concentration of smoke makes sky red? Posted: 05 Jan 2020 05:28 AM PST |
| When the earth rotates, do the clouds move with it? Or do clouds only move based on something else? Posted: 05 Jan 2020 06:48 AM PST |
| Posted: 05 Jan 2020 01:37 PM PST Take, for example, a house with a CO2 concentration higher than that of Earth's atmosphere. I open a window and the two atmospheres start to mix. How can I figure out the rate of gas exchange? I'd imagine you'd have to know the area of the window and the ratio of pressures. Bonus question: given the temperatures of the two atmospheres, how long will it take for the temperature to equalize? [link] [comments]  |
| Can/do underground animals survive wildfires? Posted: 05 Jan 2020 01:13 AM PST |
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