Do black holes ever just chuck stars? Are there any stars that entered within the gravitational pull of a black hole and was just “slingshotted” across the galaxy? (That we know of) |
- Do black holes ever just chuck stars? Are there any stars that entered within the gravitational pull of a black hole and was just “slingshotted” across the galaxy? (That we know of)
- Southern California Earthquake Megathread: Ask Your Earthquake Questions Here!
- Is there a reason why the more dangerous frequencies (UV, X-ray, gamma) and the "harmless" frequencies (radio, IR) on the EM spectrum are separated by the visible wavelengths?
- Every reasonable person knows the Earth is not flat, but is there a maximum surface area you could sample where the Earth was statistically flat?
- Do small animals get concussions (e.g. insects, small reptiles)?
- How hot does the backside of the moon get during a total solar eclipse?
- How do varying peak amplitudes affect brain waves?
- How far does sunlight travel through the atmosphere when I watch the sunset?
- What is the likelihood of dying during random point of your day? e.g: waking up, washing your teeth...
- Why do antipsychotics increase the risk of death for the elderly with dementia?
- What is "different" about a photon at the peak vs the valley of the wave?
- What are the chances of a black hole being made from antimatter?
- Are there any inherent issues with using tank tracks at high speeds?
- What does light look like as it moves away from the visible spectrum?
- Is there a correlation between face shapes (oblong, oval, square etc) and body types (mesomorph, ectomorph, endomorph)?
- What would melt faster? A spherical or cubic, ice cube?
- Is planting trees really a viable strategy to combat climate change? Isn’t all the carbon they capture released when the die/rot?
- Which is more 'fundamental' - wavelength or frequency?
- Do Pacific Islands archipelagos or island chains disturb the flow of ocean currents, or can ocean currents bypass the islands and not be weakened or change course because of the islands in their way?
- Can tanks of rocket fuel, such as methane, liquid hydrogen, liquid oxygen, survive simply floating in space indefinitely, or on the surface of Mars, until they are needed? Or do they outgas completely at some point?
- What distinguishes a tensor from just being a fancy way to define a matrix?
- What does the LHC's security model look like?
- Rubbing these two metals together produces a sludge?
| Posted: 04 Jul 2019 11:09 PM PDT |
| Southern California Earthquake Megathread: Ask Your Earthquake Questions Here! Posted: 04 Jul 2019 04:32 PM PDT Hello AskScience! Today at approximately 10am local time, a 6.4-magnitude earthquake occurred in Southern California. The epicenter of the earthquake was in a remote area between Los Angeles and Las Vegas, though the quake was felt widely across the region. It is the strongest earthquake in the area in two decades. The AskScience team would like to extend our condolences to anyone negatively affected by this event. We are here to answer your earthquake questions! Please post them below and our panelists will join in.
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| Posted: 05 Jul 2019 07:48 AM PDT |
| Posted: 05 Jul 2019 07:44 AM PDT |
| Do small animals get concussions (e.g. insects, small reptiles)? Posted: 05 Jul 2019 08:31 AM PDT Background: Massive (small) lizard in the house. My dad whacked it with a newspaper. Looked dead but not squashed. Thrown into the bin. Moments later, gone. Me go sleep. Me have nightmare. BIG lizard eating me up. SPOOK hence the question. Thanks for all your input! [link] [comments]  |
| How hot does the backside of the moon get during a total solar eclipse? Posted: 05 Jul 2019 07:47 AM PDT |
| How do varying peak amplitudes affect brain waves? Posted: 05 Jul 2019 07:46 AM PDT If i were graphing voltage against time for an experiment regarding a particular brain wave and various subjects recorded higher or lower peak amplitudes to an expected response, how do these extra or fewer volts affect the individuals brain and its processing? [link] [comments]  |
| How far does sunlight travel through the atmosphere when I watch the sunset? Posted: 05 Jul 2019 07:44 AM PDT Hi, I got curious during some research on Rayleigh-scattering. I don't really know how to calculate the distance. [link] [comments]  |
| Posted: 05 Jul 2019 07:20 AM PDT |
| Why do antipsychotics increase the risk of death for the elderly with dementia? Posted: 05 Jul 2019 06:51 AM PDT Title. I see antipsychotic commercials on TV (like Rexulti) and I wonder why that class of drug is so deadly to the elderly. [link] [comments]  |
| What is "different" about a photon at the peak vs the valley of the wave? Posted: 05 Jul 2019 06:42 AM PDT Hi all. What is the difference in a photon's electric and magnetic properties (if any) at the peak vs the trough of the two aspects the wave? Does something different happen if a photon hits an object at the peak vs the trough? I'll thank you in advance though I have a feeling I'll have follow-ups. [link] [comments]  |
| What are the chances of a black hole being made from antimatter? Posted: 05 Jul 2019 06:04 AM PDT I've been thinking about the matter-antimatter discrepancy. How the Big Bang should have created both matter and antimatter in equal quantities, but the known universe contains only matter (so far as we can tell). After playing around with antimatter galaxies, I came up with the idea that black holes could be made from antimatter. Antimatter and matter explode violently upon contact, but nothing escapes the event horizon of a black hole (except Hawking Radiation). So if an anti-matter black hole captures matter, the explosion would be contained inside the black hole's event horizon and we'd never witness it. I realize that this could only happen if antimatter reacts more strongly to gravity than matter, thus making it more likely to form black holes in the first place. I realize that my idea is almost certainly wrong and it would be much easier to explain why more matter than antimatter was formed from the Big Bang (although there's currently no widely accepted reason why this would happen). But if there is an antimatter black hole a) would we be able to distinguish it from a matter black hole and b) would the obliteration of the matter-antimatter explosion cause the black hole to decay, by say, reducing the mass of the black hole and causing the gravity to weaken? [link] [comments]  |
| Are there any inherent issues with using tank tracks at high speeds? Posted: 05 Jul 2019 05:51 AM PDT Are tracks inherently limited to relatively slow speeds due to mechanical issues or is it more because the vehicles themselves are heavy? Even the fastest tracked vehicles such as the M18 Hellcat, the BT-7 or the FV 107 Scimitar weigh multiple tons due to armor, armament and other equipment. The question is, would it be feasible to create a "tracked sports car" with a lightweight chassis, a powerful engine and not much else to weigh it down or would issues with the tracks themselves (friction? wear?) effectively limit its speed? [link] [comments]  |
| What does light look like as it moves away from the visible spectrum? Posted: 05 Jul 2019 01:04 AM PDT Let's say that we have created a kind of diode that can put off light on one and only one frequency at a time. We also have a knob that can precisely control what frequency the diode is emitting. This diode can also emit Ultraviolet and Infrared radiation (what a nifty little thing!). Oh, and it puts off light at a brightness that can easily be seen by the naked eye. My question is this: Given this hypothetical little diode, what would it look like as we turned the knob up to Infrared or down into Ultraviolet? Would the light just get dimmer and dimmer before going out? Since it is only emitting on one frequency, would it suddenly go out altogether? [link] [comments]  |
| Posted: 05 Jul 2019 03:51 AM PDT |
| What would melt faster? A spherical or cubic, ice cube? Posted: 05 Jul 2019 02:42 AM PDT |
| Posted: 04 Jul 2019 10:27 PM PDT This recent article tours planting billions of trees as an option to fight climate change. When these trees die and rot or burn, isn't all of the carbon they've captured throughout their life released back into the environment? If that's the case is planting trees really a solution to climate change? [link] [comments]  |
| Which is more 'fundamental' - wavelength or frequency? Posted: 05 Jul 2019 01:05 AM PDT When looking at the nature of things, I understand that wavelength is inverse to frequency (in terms of magnitude). However sometimes I see scientific explanations in terms of frequency and sometimes in terms of wavelength. What I've trying to understand is whether one is a manifestion of the other, or are they both actually manifestations of a more underlying property? [link] [comments]  |
| Posted: 04 Jul 2019 07:44 AM PDT I mean many small landmasses close together not a large landmass or large landmasses close to each other. [link] [comments]  |
| Posted: 04 Jul 2019 10:37 PM PDT |
| What distinguishes a tensor from just being a fancy way to define a matrix? Posted: 04 Jul 2019 08:59 PM PDT |
| What does the LHC's security model look like? Posted: 04 Jul 2019 08:19 PM PDT What does the authentication/authorization process look like to spin up a run at LHC? Who has the rights to authorize firing the accelerator, either managerially or technically? [link] [comments]  |
| Rubbing these two metals together produces a sludge? Posted: 04 Jul 2019 09:06 AM PDT Hi, I'm currently wondering why this happens over and over despite me cleaning those two metals every time. I'm fidgeting with two metals disks, rubbing them together with two fingers for no real reason. One disk is certainly made of Mu-metal or similar (Coming from a high-end speaker magnet. Is not a magnet itself.) and the other disk is made from a hard, cast iron (I can barely work it with a file), that is creating yellow salts in a oxalic acid peroxide solution. (I'm sure it's Iron oxalate) So it is mostly iron. The Mu-metal disk does not stick to the other disk, but it does when I've rubbed them together until the sludge appears. It holds on when turned on top. I am not touching the surfaces that rub together. I also ruled out charges because I rubbed them together while having them both connected via a copper cable. The "sludge" appears as a darker-than-the-metal coating/film that also feels fatty. Kind regards Edit: the Mu-metal disk could be coated in zinc. It is a pretty whiteish metal. Edit2: Interestingly, one disk slowly glides down the other when there is enough "sludge" to hold the disk when turned on top. For some reason it feels odd how it glides down. It is a very constant and slow motion. More: There is no magnetic attraction between the two at the point when they stick together. That's why I put this as a Chemistry question. [link] [comments]  |
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