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Old 05-01-2015, 05:14 PM   #146
lightgiver
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Join Date: Apr 2008
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Lightbulb Magi Mirror


Quote:
A Chinese magic mirror is an ancient art that can be traced back to the Chinese Han dynasty (206 BC – 24 AD).. The mirrors were made out of solid bronze. The front is a shiny polished surface and could be used as a mirror, while the back has a design cast in the bronze.. When bright sunlight or other bright light reflects onto the mirror, the mirror seems to become transparent.. If that light is reflected from the mirror towards a wall, the pattern on the back of the mirror is then projected onto the wall..Robert Temple describes their construction: "The basic mirror shape, with the design on the back, was cast flat, and the convexity of the surface produced afterwards by elaborate scraping and scratching.. The surface was then polished to become shiny.. The stresses set up by these processes caused the thinner parts of the surface to bulge outwards and become more convex than the thicker portions.. Finally, a mercury amalgam was laid over the surface; this created further stresses and preferential buckling...


AcDc-Big Balls...

Because I had only my writing brush and ink slab to converse with, I call it Brush Talks...

If they were like balls they would surely obstruct each other when they met.. I replied that these celestial bodies were certainly like balls.. How do we know this? By the waxing and waning of the moon.. The moon itself gives forth no light, but is like a ball of silver; the light is the light of the sun (reflected).. When the brightness is first seen, the sun(-light passes almost) alongside, so the side only is illuminated and looks like a crescent.. When the sun gradually gets further away, the light shines slanting, and the moon is full, round like a bullet.. If half of a sphere is covered with (white) powder and looked at from the side, the covered part will look like a crescent; if looked at from the front, it will appear round.. Thus we know that the celestial bodies are spherical...
http://en.wikipedia.org/wiki/Chinese_magic_mirror
http://www.davidicke.com/forum/showp...50&postcount=5The only thing in this world that gives orders.. is balls..All I have in this world is my balls and my word and I don't break them for no one...http://www.davidicke.com/forum/showp...&postcount=360

Last edited by lightgiver; 05-01-2015 at 05:16 PM.
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