If 2 photons are traveling in parallel through space unhindered, will inflation eventually split them up? |
- If 2 photons are traveling in parallel through space unhindered, will inflation eventually split them up?
- Why do MRI machines require such extremely strong magnetic fields?
- Is it possible to send light into orbit?
- How do air bubbles in a carbonated drink influence the volume of the drink?
- Does depression cause brain damage? Does it make you dumber?
- Is the Ethiopian Lion (Panthera leo roosevelti) a valid subspecies of lion or is it a part of Panthera leo nubica?
- What's the difference between ultrasound and echocardiogram?
- Why is the Pacific plate so flat?
- (pardon me for any mistakes, English isn't my first language)Why doesn't sodium move freely after giving chlorine an extra electron , i mean now both has a complete shell it should be free to move right? yet they seem to stick together as NaCl
- Is there any liquids floating in space?
- How big can the gaps be in a faraday cage to still be functional?
- Why are cases of dementia more common in North America and Europe compared to the rest of the world?
- How do forms of kinship descent pertain to a society's economic mode of production?
- How did the Deepwater Horizon oil spill get plugged up? Is it permanent, or will the containment method eventually erode away / break due to pressure?
- I just saw an add for Stelara a drug to treat Chrohns disease. One of the cautions was as follows: “Tell your doctor .... *if anyone in your house needs or recently had a vaccine*. Why would someone in your house NEEDING a vaccine or receiving one impact how a drug affects someone?
- Are there moons with moons of their own?
- How does ice skating work?
- Why can’t we see stars on photos taken from the ISS?
- Why is mononucleosis (“mono” or “the kissing disease”) called mono-nucleolus?
| Posted: 21 Feb 2020 05:02 AM PST this could cause a magnification of the distant objects, for "short" a while; then the photons would be traveling perpendicular to each other, once inflation between them equals light speed; and then they'd get closer and closer to traveling in opposite directions, as inflation between them tends towards infinity. [link] [comments]  |
| Why do MRI machines require such extremely strong magnetic fields? Posted: 20 Feb 2020 04:25 PM PST |
| Is it possible to send light into orbit? Posted: 20 Feb 2020 08:38 PM PST Forgive my ignorance, I'm not very smart in this area of science as far as astronomy/physics. But I was thinking about how light can be bent when it goes around massive objects. If light can be Bent then if you were to get something with insane mass like a black hole, would it be possible to send light into orbit without letting it reach the event horizon? [link] [comments]  |
| How do air bubbles in a carbonated drink influence the volume of the drink? Posted: 20 Feb 2020 04:37 PM PST Hello, so yesterday I was about to drink a drink that is heavily carbonated and I wanted to make it a bit more subtle bubblewise so I was about to shake the hell out of the bottle. Before I've done that I began to wonder whether due to the shaking and bubbles leaving the drink will make the water drop a bit so since it was in a transparent bottle I marked where the water reached and shook it. Once I've done that I noticed that the water level actually dropped but once I released the pressure and screwed off the lid it came back to it's original point. I find this reaction quite an interesting one so I would like to know what makes the water drop and rise again since afaik the liquid is basically not compressable so it shouldn't drop enough to become that noticeable. Thank you [link] [comments]  |
| Does depression cause brain damage? Does it make you dumber? Posted: 20 Feb 2020 02:33 PM PST |
| Posted: 20 Feb 2020 08:27 AM PST The Ethiopian Lion is also known as the Abyssinian Lion or the Addis Ababa Lion. I'm reading so much conflicting descriptions online, so I'd love if an expert could chime in. Thanks! [link] [comments]  |
| What's the difference between ultrasound and echocardiogram? Posted: 20 Feb 2020 02:36 PM PST 1st year med student here. I understand the difference in use cases (ultrasound works anywhere, echocardiogram is specific to heart. ECG measures liquid flow, ultrasound is just an image, etc.) I'm confused about the technological differences. Is an echocardiogram based on ultrasound? The exact same machine? a completely different machine? Why is an echo so much more expensive than ultrasound? Is there any difference between a "cardiac ultrasound" and what you would see with echo? [link] [comments]  |
| Why is the Pacific plate so flat? Posted: 20 Feb 2020 02:07 PM PST If you look at all of the continental plates, most of them have a significant amount of sub-aerial landmass. The only one that doesn't is the Pacific plate, which is almost entirely devoid of sub-aerial land. Why is this? [link] [comments]  |
| Posted: 20 Feb 2020 03:21 PM PST another question that i had which related to this topic is; once both of them have complete outer shells, why do we then refer to them as being charged? if, say, sodium has one extra electron and wants to give it out, then it'll be a positive ion, but after that it has given its electron to chlorine, why is it referred to as a positive ion even though now it has no charge [link] [comments]  |
| Is there any liquids floating in space? Posted: 20 Feb 2020 01:52 PM PST For example like a lake sized mass of liquid. If it's possible what would the liquid have to be the liquid form of since water would eventually freeze. [link] [comments]  |
| How big can the gaps be in a faraday cage to still be functional? Posted: 20 Feb 2020 11:15 AM PST E.g. will a 1x1x1 km cube (only edges) protect against a lightning or electricity (230V 50Hz)? [link] [comments]  |
| Why are cases of dementia more common in North America and Europe compared to the rest of the world? Posted: 20 Feb 2020 11:04 AM PST |
| How do forms of kinship descent pertain to a society's economic mode of production? Posted: 20 Feb 2020 08:31 AM PST When looking at patrilineal, matrilineal, bilateral, etc. forms of kinship descent, how are these cultural familial relations advantageous to certain modes of economic production? I know people don't form kinship rules out of boredom, so what motivates individuals to organize social relations in these specific ways? [link] [comments]  |
| Posted: 20 Feb 2020 06:44 AM PST |
| Posted: 20 Feb 2020 08:45 AM PST I just saw an add for Stelara a drug to treat Chrohns disease. One of the cautions was as follows: "Tell your doctor if you have an infection or flu like symptoms or sores, have had cancer or developed new skin growths or if anyone in your house needs or recently had a vaccine. Why would someone in your house NEEDING a vaccine or receiving one impact how a drug affects someone or pose a risk? [link] [comments]  |
| Are there moons with moons of their own? Posted: 19 Feb 2020 09:43 PM PST Are there any moons that have moons of their own? Is this even a theoretical possibility? [link] [comments]  |
| Posted: 20 Feb 2020 09:32 AM PST I'm just curious because I have heard of a pressure melting theory [link] [comments]  |
| Why can’t we see stars on photos taken from the ISS? Posted: 19 Feb 2020 10:37 PM PST |
| Why is mononucleosis (“mono” or “the kissing disease”) called mono-nucleolus? Posted: 20 Feb 2020 10:45 AM PST |
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