Why does colored plastic turn white when bent? |
- Why does colored plastic turn white when bent?
- Do spiders scout out multiple places before deciding to spin their web and if so, are environmental conditions taken into account (wind speed, temperature, humidity, etc.)?
- Can you melt wood?
- Do stars fuse elements larger than uranium that are unable to escape?
- If a car is a faraday cage why do I still get signal?
- How does RFID work?
- Blue light affects our sleep, but do colourblind people experience sleep problems from blue light?
- If/when the Big Rip happens, would hadrons multiply via color confinement? If so, how would this affect inflation?
- If two nuclear physicists agree to study a particular electron simultaneously; one measures its position, and the other measures its speed; what would happen to the electron as it would now be in contravention of the Heisenberg Principle?
- Why does ice crack when added to warmer liquids?
- What causes the heavy feeling in your chest/stomach area when you're nervous?
- Why is it so hard to remember our dreams but not our memories?
- Why isn't it possible to create a monopolar magnet by just creating a ball of stick magnets with all the same pole pointing inwards/outwards?
- Does the definition of "orbit" in astronomy require the barycenter to be within the boundaries of the object that's being orbited?
- How can we know that a quark is in a superposition before measuring it?
- Why does the tip of your finger hurt after you cut the nail too short?
- How much thrust is produced by the average stream of urine?
- Why are the majority of human beings right-handed? Why aren't we all just ambidextrous?
- What is it in cigarettes that causes heart attacks, strokes, and aneurysms?
- Why is a real string pitch depending on the wave amplitude?
- Does sound travel through spiraled tubing at the same speed as through straight tubing?
- Is the light from a color-changing led bulb the same caliber/quality as a dedicated led bulb?
| Why does colored plastic turn white when bent? Posted: 29 Jul 2017 03:39 PM PDT |
| Posted: 29 Jul 2017 05:07 PM PDT |
| Posted: 29 Jul 2017 05:20 PM PDT |
| Do stars fuse elements larger than uranium that are unable to escape? Posted: 30 Jul 2017 06:12 AM PDT |
| If a car is a faraday cage why do I still get signal? Posted: 30 Jul 2017 05:45 AM PDT Many times the car is described similarly to a faraday cage during thunderstrikes. Why is it that I can get electromagnetic signal outside my car if it is a faraday cage. Are the holes of the windows enough to have signal pass through? [link] [comments]  |
| Posted: 30 Jul 2017 02:35 AM PDT I've tried Googling this but I can't seem to find an answer that explains RFID in terms of electromagnetism and the physics behind it in detail [link] [comments]  |
| Blue light affects our sleep, but do colourblind people experience sleep problems from blue light? Posted: 29 Jul 2017 04:08 PM PDT Blue light will keep us awake, but will the same light affect a colourblind person? [link] [comments]  |
| Posted: 29 Jul 2017 06:38 PM PDT |
| Posted: 30 Jul 2017 05:48 AM PDT |
| Why does ice crack when added to warmer liquids? Posted: 30 Jul 2017 04:03 AM PDT |
| What causes the heavy feeling in your chest/stomach area when you're nervous? Posted: 29 Jul 2017 05:04 PM PDT |
| Why is it so hard to remember our dreams but not our memories? Posted: 29 Jul 2017 04:19 PM PDT |
| Posted: 29 Jul 2017 05:40 PM PDT Wouldn't that create a magnet which has the same pole on all sides? For illustration i tried to make a paint sketch: http://puu.sh/wWC1E/28df902291.png Why would the magnetic field created by those two be different? Wouldn't both magnetic fields just radiate straight outwards? [link] [comments]  |
| Posted: 29 Jul 2017 11:41 PM PDT |
| How can we know that a quark is in a superposition before measuring it? Posted: 30 Jul 2017 01:06 AM PDT How can we know that a quark is in a superposition before measuring it (Becouse to me it sounds like before I look at something there is everything and when I look there it decides to be a table)? [link] [comments]  |
| Why does the tip of your finger hurt after you cut the nail too short? Posted: 29 Jul 2017 08:55 AM PDT |
| How much thrust is produced by the average stream of urine? Posted: 29 Jul 2017 11:31 PM PDT |
| Why are the majority of human beings right-handed? Why aren't we all just ambidextrous? Posted: 29 Jul 2017 10:43 AM PDT I recently read that ~90% of humans are right-handed and that a similar ratio of right-handedness has been observed in apes. But why? Is/was there some evolutionary benefit or is it just a cultural practice? Why aren't we all 100% ambidextrous? [link] [comments]  |
| What is it in cigarettes that causes heart attacks, strokes, and aneurysms? Posted: 29 Jul 2017 12:49 PM PDT I stopped smoking a few years ago through the use of electronic cigarettes but have been unable to fully ween myself off of nicotine patches, lozenges, and electronic cigarettes. I was curious if nicotine itself has been tested as being what causes these things in any study, or if it is other chemicals and the tar in cigarettes that cause these problems. I've always been told nicotine just raises your blood pressure and that's about it but that was never from experts/scientists. [link] [comments]  |
| Why is a real string pitch depending on the wave amplitude? Posted: 29 Jul 2017 03:35 PM PDT When you pick a string on, say, a guitar, with exaggerated force, you may notice a higher pitch, then rapidly decreasing to the expected one when the wave amplitude decreases. This pitch shift is especially noticeable on the lower strings (where larger amplitudes are possible). What is the physical phenomenon leading to this? How can one express this dependence between pitch and amplitude mathematically? Edit: This is not about higher harmonics. There is a small but perceptible shift of the fundamental towards higher frequencies. My guess is that the deformation applied to the string increases the tension, which in turn increases the wave frequency. Is this a possible explanation? [link] [comments]  |
| Does sound travel through spiraled tubing at the same speed as through straight tubing? Posted: 29 Jul 2017 02:21 PM PDT A co-worker and I are having a disagreement on this issue. At our job we use headsets connected to a handheld radio for communication. We wear those CIA looking headsets in our ears. The wire runs to a speaker which is clipped to the back of our collar and then the sound travels through a small tubing, which is straight, spirals in the middle, and then loops over the ear and into the earpiece. I cut my tubing down from the speaker to the spiral, so it stays somewhat tight in my ear. While assisting a new employee i cut her tubing down even closer to the spiral in the tubing. Almost to the point where the speaker produced sound straight into the spiral before getting to the earpiece. Halfway through the shift, he speaker blew out and the sound is crackling. My co worker said the speaker blew because the sound gets too backed up going through the spiral, compressing it and blowing our the speaker. My argument is that the tubing is all the same diameter, and the sound is traveling at the same rate whether it is straight or spiraled. Also, why wouldn't the spiral compress it even if it did have a few inches of tubing before the spiral. I have searched for an answer with no luck which is why I am here. My co worker will need me to have some scientific information or sources in order to concede. Thank you all. [link] [comments]  |
| Is the light from a color-changing led bulb the same caliber/quality as a dedicated led bulb? Posted: 29 Jul 2017 10:28 PM PDT Say for instance the color-changing led is set to the same color temp as a dedicated led bulb (4000k or something). Is the light from the color-changing bulb technically identical to the dedicated led? [link] [comments]  |
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