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ErichPryde
·Can you mow the lawn whilst carrying it?
If it doesn't have at least 150m of water resistance I sure wouldn't count on it!
Most complicated watch ever
If it doesn't have at least 150m of water resistance I sure wouldn't count on it!
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Pastorbottle
·For the huge sum that it would cost you’d want it to mow the bloody lawn for you
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Vercingetorix
··Spam RiskI wonder if it’s possible to design something like this without the help of computers.
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sheepdoll
·I wonder if it’s possible to design something like this without the help of computers.
Most of these grand complications were done without computer help.
Henry and George I think wanted me to do such with computers as did Addie Chapiro. I collected a lot of books and ephemera on the subject.
What I find fascinating is how the Greeks were able to do such work 2000 years ago. It is all done with straight edge dividers, and polar coordinate trigonometry. Aka vectors as in angle magnitude. Some people can see this in their head.
One thing that is hard to relate to in this day and age is the making of a simple strike rack snail. These were done to size. So one starts with a large block of material, turn it down fit it, use the dividers to strike the arc against the edge of the plate. File it down. Rinse and repeat. There is something about making so many metal chips which goes against modern ideas of sustainability.
A circle will fit through any three points. Then the center can be found.
There is also a lot of filing to fit. Grinding on laps etc.
Dividing into primes is another trick which is not that well known. One takes the dividers and marks out the total number onto a stiff ribbon. This then is wrapped around a mandrel, Often wood. The mandrel is turned down so the ribbon fits over it. This then can index the lathe. Nowadays one can use band saw blades or sprocketed photographic film for the ribbon.
There has been a lot of ink spilled over 3 millennium with mathematicians, attempting to work out elegant mathematical solutions for dividing circles. The engineer just does it without a lot of thought.
I watched one of my mentor's hand file by eye a wheel for a Japanese clock.
I still want to make a model of the Swilgúe Easter calculator. Jens Olsen copied this for the Copenhagen city hall clock. I think IWC or Hublot put this into a wrist watch, so that took away a lot of the incentive.
Really all these things are table driven. So it is a matter of reducing the cam to match the table, so that the indicator follower arm shows the right info on the dial. Pantographs often help. Such devices are considered cheating as they, horrors oh horrors, allow one to make copies of things.
No one really wants to know how the sausage is made.
https://en.wikipedia.org/wiki/The_Most_Incredible_Thing
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Vercingetorix
··Spam RiskMost of these grand complications were done without computer help.
Henry and George I think wanted me to do such with computers as did Addie Chapiro. I collected a lot of books and ephemera on the subject.
What I find fascinating is how the Greeks were able to do such work 2000 years ago. It is all done with straight edge dividers, and polar coordinate trigonometry. Aka vectors as in angle magnitude. Some people can see this in their head.
One thing that is hard to relate to in this day and age is the making of a simple strike rack snail. These were done to size. So one starts with a large block of material, turn it down fit it, use the dividers to strike the arc against the edge of the plate. File it down. Rinse and repeat. There is something about making so many metal chips which goes against modern ideas of sustainability.
A circle will fit through any three points. Then the center can be found.
There is also a lot of filing to fit. Grinding on laps etc.
Dividing into primes is another trick which is not that well known. One takes the dividers and marks out the total number onto a stiff ribbon. This then is wrapped around a mandrel, Often wood. The mandrel is turned down so the ribbon fits over it. This then can index the lathe. Nowadays one can use band saw blades or sprocketed photographic film for the ribbon.
There has been a lot of ink spilled over 3 millennium with mathematicians, attempting to work out elegant mathematical solutions for dividing circles. The engineer just does it without a lot of thought.
I watched one of my mentor's hand file by eye a wheel for a Japanese clock.
I still want to make a model of the Swilgúe Easter calculator. Jens Olsen copied this for the Copenhagen city hall clock. I think IWC or Hublot put this into a wrist watch, so that took away a lot of the incentive.
Really all these things are table driven. So it is a matter of reducing the cam to match the table, so that the indicator follower arm shows the right info on the dial. Pantographs often help. Such devices are considered cheating as they, horrors oh horrors, allow one to make copies of things.
No one really wants to know how the sausage is made.
https://en.wikipedia.org/wiki/The_Most_Incredible_Thing
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Evitzee
·The calculation of Easter is very difficult for a mechanical wrist or coach watch. Patek Philippe had it on its Cal 89 watch from 1989, but it was done via a purpose built cam which had so many Easter dates preprogrammed on the cam, and they included another cam when the first one was used up, so it was a bit of a cheat as it wasn't calculating anything, just showing what was preprogrammed on the cam.
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ghce
·No one really wants to know how the sausage is made.
https://en.wikipedia.org/wiki/The_Most_Incredible_Thing
I do!
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sheepdoll
·Easter can only be done with cams.
There are three numbers which are used.
Golden number 1 to 19 (moon)
Solar cycle 1 to 28 (sun)
Indiction 1 to 15 (civil)
These calculate the Dominical Letter and the Epact. Which relate to which day of the week Sunday falls.
The trick though is leap year. Which is why such watches usually have extra cams in little glass vials. One can only calculate the above within a 100 or 200 year range. Weird things happened in the late 18th century, and the 16th century.
Ironically in effect this is a variation of the three body problem. Ultimately it is the Pope who determines the true date of Easter.
Newton, Gauss and others wasted a lot of ink trying to find an elegant solution.
The Islamic calendar can not be calculated by computer. The moon has to be observed. Not sure about the Chinese calendar. That one is also completely lunar based. The Hebraic calendar is also lunar/solar. That can be calculated using the above tables.
Back at the turn of the millennium in the late 1990s there were a number of watches what attempted to show some of this. Such things were shown at Basil World. They may have been one off 'prototypes.'
There are three numbers which are used.
Golden number 1 to 19 (moon)
Solar cycle 1 to 28 (sun)
Indiction 1 to 15 (civil)
These calculate the Dominical Letter and the Epact. Which relate to which day of the week Sunday falls.
The trick though is leap year. Which is why such watches usually have extra cams in little glass vials. One can only calculate the above within a 100 or 200 year range. Weird things happened in the late 18th century, and the 16th century.
Ironically in effect this is a variation of the three body problem. Ultimately it is the Pope who determines the true date of Easter.
Newton, Gauss and others wasted a lot of ink trying to find an elegant solution.
The Islamic calendar can not be calculated by computer. The moon has to be observed. Not sure about the Chinese calendar. That one is also completely lunar based. The Hebraic calendar is also lunar/solar. That can be calculated using the above tables.
Back at the turn of the millennium in the late 1990s there were a number of watches what attempted to show some of this. Such things were shown at Basil World. They may have been one off 'prototypes.'
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Dsloan
·Ok, meet me at the Magic Castle at one in the morning, of the thirteenth hour of the thirteenth day of the thirteenth year. I am sure the ghost of Harry Houdini, and Rbt. Houdine, will be happy to explain it.
Tell them Edgar Cayce sent you.
Oh man, just imagine the hell that Cayce must be putting Houdini through in the afterlife. Every day it's a variation on "I told you so, Harry!"
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Pastorbottle
·I think a lawnmower is one of the complications.
You’re right there, lawn mowers like all small engines are bastards of things… instruments of the devil!
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hen
·"Like.... does it have ehh... like snapchat and tictoc and stuff in there..like I literally need those actually"
