dmp
Senior Member
Any takers?
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
dmp said:Any takers?
no1tovote4 said:If it was entirely enclosed you would see nothing. You need light to see. If you happened to have brought a flashlight, likely nothing as the reflecting light would quickly blind you.
Hagbard Celine said:No1tovote4 is right about the light, but if you had light, you would see a kaleidoscopic-like image all around you made up of all the colors on you (your skin, hair, clothes, etc.). The image would be concave like it is when you look at yourself in a spoon.
haha, sorry. I'm a little punchy this morning. I stayed up all night writing a paper. Don't take it to heart, I've got a small rep so it only took off a point. Sorry again. I realized it was un-called for and I've been trying to rep you for your "partisan :blah2:" post in "michelle got this one right," but the forum's telling me I've got to spread it around first.The ClayTaurus said:You dinged me over a discussion about light refraction inside a sphere?
You wouldn't see a blur of colors because mirrors do not refract 100% of the light. Even if you could somehow locate your eye in the absolute center of the sphere, your own body would be absorbing light and interrupting the infinite refraction you're referring to that would lead to a blur of colors.
You seriously just dinged me over that?
'Tis ok... I don't really care much about the whole rep thing, just wondering why this set you off when I've had much worse posts against you. CheersHagbard Celine said:haha, sorry. I'm a little punchy this morning. I stayed up all night writing a paper. Don't take it to heart, I've got a small rep so it only took off a point. Sorry again. I realized it was un-called for and I've been trying to rep you for your "partisan :blah2:" post in "michelle got this one right," but the forum's telling me I've got to spread it around first.
The ClayTaurus said:Probably not true, as mirrors do not reflect 100%. You would probably see a distorted or multiple distorted reflections of yourself. The answer changes based on where your eyes are within the sphere.
Hagbard Celine said:haha, sorry. I'm a little punchy this morning. I stayed up all night writing a paper. Don't take it to heart, I've got a small rep so it only took off a point. Sorry again. I realized it was un-called for and I've been trying to rep you for your "partisan :blah2:" post in "michelle got this one right," but the forum's telling me I've got to spread it around first.
The ClayTaurus said:You dinged me over a discussion about light refraction inside a sphere?
You wouldn't see a blur of colors because mirrors do not refract 100% of the light. Even if you could somehow locate your eye in the absolute center of the sphere, your own body would be absorbing light and interrupting the infinite refraction you're referring to that would lead to a blur of colors.
You seriously just dinged me over that?
Hobbit said:A perfectly spherical mirror would reflect all light towards its center. If you kept your eyes away from that focal point, you'd be fine. Of course, you should probably keep everything else away from that point, as well, because of the heat buildup.
The ClayTaurus said:That is entirely not true.
Hobbit said:It's pure math. A sphere is two partial parabolas stuck onto each other. A parabola reflects all light towards its focus, which is why sattellite dishes are parabolic. While the rest of the sphere would not be completely dark (there's light bouncing everywhere, it just all passes through a single point), the center would be quite bright, as it would be the focal point of all reflections. If the light was intense enough, an object set in the dead center would heat up and possibly combust, as every photon that entered the room would eventually hit it.
Max Power said:That's not true. A sphere is not parabolic.
Hobbit said:It's pure math. A sphere is two partial parabolas stuck onto each other. A parabola reflects all light towards its focus, which is why sattellite dishes are parabolic. While the rest of the sphere would not be completely dark (there's light bouncing everywhere, it just all passes through a single point), the center would be quite bright, as it would be the focal point of all reflections. If the light was intense enough, an object set in the dead center would heat up and possibly combust, as every photon that entered the room would eventually hit it.
The ClayTaurus said:Parabolas aside, your comparison of a satellite focusing all waves to a point is invalid because the light waves are not running in a uniform direction; they would be radiating from a point source. The satellite thing works because the wave field that it's in is uniform:
http://mathcentral.uregina.ca/RR/database/RR.09.95/weston1.html