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Originally posted by Blue Shift
Originally posted by Xtrozero
The rays are then focused onto an area the size of a cooking pot and can reach 3,500 °C (6,330 °F), depending on the process installed.... [...] I beg to differ
Got an image handy of what those holes look like? I'm guessing that they're nowhere near perfectly circular, but rather sloppy and at least partially melted into an elliptical shape.
Originally posted by Plotus
In Egypt there are etchings on the obelisks that are so precise, so to not have been able to be done by hand. To look at them it is apparent they must have been carved or etched with a laser. These obelisks leave enough questions to confound scientists and archaeologists for eons. They are so 'FINE' in detail and the size of the lines used, they could not have been done by slaves or even proficient masons. Grave marker masons barely have the equipment to accomplish such a delicate and fine type of work in this day and time.
Originally posted by Blarneystoner
Originally posted by Xtrozero
Originally posted by Blarneystoner
Parabolic mirrors to focus light and melt stone?
The melting point of Limestone which is fairly common in megalithic structures ranges between: 1517-2442 degrees.
Using mirrors probably isn't going to generate enough heat to do the job... even the most efficient mirrors do not reflect 100% of the light from the source.
Even using a magnifying lens would be problematic.
edit on 23-2-2012 by Blarneystoner because: (no reason given)
The term "solar furnace" has also evolved to refer to solar concentrator heating systems using parabolic mirrors or heliostats where 538 °C (1,000 °F) is now commonly achieved. The largest solar furnace is at Odeillo in the Pyrénées-Orientales in France, opened in 1970. It employs an array of plane mirrors to gather sunlight, reflecting it onto a larger curved mirror. The rays are then focused onto an area the size of a cooking pot and can reach 3,500 °C (6,330 °F), depending on the process installed....
I beg to differ
The parabolic mirrors generate 538* C individually, it's only when 2 or more mirrors are focused on a single point that more heat is generated. But... only on sunny days...
BTW - if you're going to cut and paste from Wikipedia it's bad form not to include the source linnk...
edit on 23-2-2012 by Blarneystoner because: (no reason given)
Originally posted by Xtrozero
Originally posted by sirhumperdink
reply to post by A-Dub
they did not have silver backed mirrors and copper mirrors dont reflect enough light
however im fairly certain they had access to prisms which could be used in place of a mirror to redirect light in a desired direction
They had gold and gold mix mirrors...much better than copper.
Well for one, the Parthenon isn't a mason marvel. It didn't take advanced mathematics to build
Originally posted by DARREN1976
It's not just the way they worked the stone thats an issue, its how they where laid with such precision and transported over such vast distances also.
Originally posted by Anon77
Originally posted by DARREN1976
It's not just the way they worked the stone thats an issue, its how they where laid with such precision and transported over such vast distances also.
Massive manpower, mathematics, animals and clever humans. Nothing complex about it...
Originally posted by sirhumperdink
Originally posted by Anon77
Originally posted by DARREN1976
It's not just the way they worked the stone thats an issue, its how they where laid with such precision and transported over such vast distances also.
Massive manpower, mathematics, animals and clever humans. Nothing complex about it...
look at light through a prism.... you dont even need any math
and youll be able to make lines as precise as the photons hitting the floor (if you take enough time and effort anyway)
....not saying they didnt use math by the way
Originally posted by sirhumperdink
Originally posted by Anon77
Originally posted by DARREN1976
It's not just the way they worked the stone thats an issue, its how they where laid with such precision and transported over such vast distances also.
Massive manpower, mathematics, animals and clever humans. Nothing complex about it...
look at light through a prism.... you dont even need any math
and youll be able to make lines as precise as the photons hitting the floor (if you take enough time and effort anyway)
....not saying they didnt use math by the way
Originally posted by Fisherr
This just speaks for itself.
Wally. T. Wallington
Originally posted by Anon77
Originally posted by sirhumperdink
Originally posted by Anon77
Originally posted by DARREN1976
It's not just the way they worked the stone thats an issue, its how they where laid with such precision and transported over such vast distances also.
Massive manpower, mathematics, animals and clever humans. Nothing complex about it...
look at light through a prism.... you dont even need any math
and youll be able to make lines as precise as the photons hitting the floor (if you take enough time and effort anyway)
....not saying they didnt use math by the way
Very true, Only problem is... they probably didn't have prisms.