If we could theoretically break the speed of light, would we create a 'light boom' just as we have sonic booms with sound? |
- If we could theoretically break the speed of light, would we create a 'light boom' just as we have sonic booms with sound?
- What exactly happens during the placebo effect?
- Why do small blackholes emit more Hawking radiation than large ones?
- My 12 yr old wants to know "what's the difference between hydrocarbons and carbohydrates?"
- It is being reported quite widely here in the UK that British astronaut Major Tim Peak has taken some tea with him to ISS. How would he go about boiling his water and making his brew in zero gravity?
- Why doesn't empty space have a temperature of absolute zero?
- A partial femur was found in China that points to a recent ancestor from 14,000 years ago. How do scientists know that the differences in the femur are a result of evolutionary precursors to modern humans and not a deformity of the femur in a modern human?
- Is the speed of gravity slower in a medium?
- What happens to animals when they lose duels?
- Is there a difference in how fast caffeine is absorbed on an empty stomach versus full stomach?
- How do scientists figure out how dense space objects are?
- How do sections of Canada experience less gravity than the rest of the world?
- What happens to strings as a result of matter antimatter annihilation?
- Any alternative to mercury use in small scale gold mining?
- Why does having both an inductor and a capacitor make a circuit AC?
| Posted: 18 Dec 2015 01:19 PM PST If we could break the speed of light would a mach cone of light be created by the object that traveled faster than light? Edit: Damn didn't expect this to get so much attention, thanks for all your responses I'll read them tomorrow [link] [548 comments]  |
| What exactly happens during the placebo effect? Posted: 19 Dec 2015 04:11 AM PST If for example you take a homeopathic sugar pill for back pain, and find your back pain reduced what exactly took place within the body? Does the brain subconsciously ignore the pain and does the actual condition worsen while the symptom is reduced? Or does the condition actually get cured? What exactly happens within the body when you undergo placebo effect? [link] [3 comments]  |
| Why do small blackholes emit more Hawking radiation than large ones? Posted: 19 Dec 2015 05:48 AM PST |
| My 12 yr old wants to know "what's the difference between hydrocarbons and carbohydrates?" Posted: 18 Dec 2015 11:45 AM PST He said "it sounds like the difference between H2O and OH2 that it's just the same thing". I told him that it's the difference between gasoline and bread, but that's really a non answer. [link] [21 comments]  |
| Posted: 18 Dec 2015 11:18 PM PST |
| Why doesn't empty space have a temperature of absolute zero? Posted: 18 Dec 2015 10:27 PM PST From what I understand, heat/energy travels through the motion of particles, so if there is an area that is absent of matter, why isn't it also absent of heat? [link] [5 comments]  |
| Posted: 18 Dec 2015 11:24 PM PST |
| Is the speed of gravity slower in a medium? Posted: 19 Dec 2015 01:49 AM PST |
| What happens to animals when they lose duels? Posted: 19 Dec 2015 12:22 AM PST I was watching a NatGeo Documentary and one of the scenes had a ram that was head of the pack duel a young newcomer. After the duel, the young newcomer beat the head of the pack and became the new head. My question is, in a scenario like this, what happens to the once head of the pack? [link] [1 comment]  |
| Is there a difference in how fast caffeine is absorbed on an empty stomach versus full stomach? Posted: 18 Dec 2015 10:01 PM PST Does caffeine (in coffee) affect you differently if you eat food with it or if you drink coffee on an empty stomach? Why or why not? [link] [1 comment]  |
| How do scientists figure out how dense space objects are? Posted: 18 Dec 2015 08:07 PM PST |
| How do sections of Canada experience less gravity than the rest of the world? Posted: 18 Dec 2015 10:41 AM PST this article tries to explain it but I still feel like its baffling considering the explanation says its because the mantle is "slowly oozing sideways". I'm certainly no expert, but isn't all the earths crust moving? Is it just moving faster in Canada and why would this effect gravity? [link] [6 comments]  |
| What happens to strings as a result of matter antimatter annihilation? Posted: 18 Dec 2015 10:17 PM PST I'm thinking that either the two strings are converted to energy when their vibration energy is released or stale strings are left behind. This leads to two questions a) If the strings are converted to energy, by what are the processes by which energy coalesces into a string and then how does it gain vibration energy? b) If the string are left without energy, then what are the properties of a non-vibrating string? where are they and can they regain vibration to once again be seen as matter? [link] [5 comments]  |
| Any alternative to mercury use in small scale gold mining? Posted: 19 Dec 2015 01:44 AM PST Hello Reddit, I was wondering if anyone knows an alternative chemical to mercury in small scale gold mining. I'm a geology student, and I briefly remember hearing in a forum a while back that another chemical can be used. All I remember is that the audience was initially shocked, because the other chemical is still toxic and a pollutant, before it something was explained about it's state of matter, making it safer. Thanks if anyone knows. [link] [1 comment]  |
| Why does having both an inductor and a capacitor make a circuit AC? Posted: 19 Dec 2015 01:31 AM PST I had it described to me like a slinky bouncing above and below it's resting level, and this represents the back-and-forth of inductors and capacitors, but I'm still having a hard time understanding. [link] [3 comments]  |
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