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Old November 6th, 2010, 05:17 AM   #6181
abumuhannadh
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some people come here once and throw their attitude here. i dunno, may be they had a bad day
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Old November 6th, 2010, 03:37 PM   #6182
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Well, I still like it
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Old November 6th, 2010, 08:09 PM   #6183
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RECORD

Giant Mecca Swiss Watch






The clock that will outperform Big Ben is the work of a Schwyz engineer.

The challenge to over 400 meters: to protect the hands from the wind.
October 26, 2010

The Makkah Clock can boast of being bigger and taller than most Big Ben. But unlike London which the clock strikes the hour, one of Mecca's mission is to draw pilgrims to prayer five times a day. Next year, the Muslim world will be watching on a Swiss mechanism installed in Saudi Arabia: "This clock is as big as a football field," enthuses Martin Ryffel Schwyz engineer.

If technology is Swiss, the construction is German. This is also an architect from Frankfurt mandated by investors who contacted the company Straintec led to Wollerau (SZ) by engineer Martin Ryffel. "The challenge lay in the hands that are exposed to the wind." To prevent their swaying damages dials - mosaics composed of millions of ceramics - the engineer has developed circular rails that hold the two needles of the dial away on all four sides of the tower.

Technical challenges

Rails is the specialty of Martin Ryffel, whose systems equip parks as Europarc. The design of the movement of 21 tons of steel and bronze was also a challenge for the engineer and his team: he would be in pieces to facilitate the inevitable future repair and had to be hoisted to a height of 425 meters, in a steel structure.

Other technical challenges were identified in two years, such as lightning rods to divert lightning mechanism. "The Bin Laden group wanted the best," said the engineer.

500 years warranty

"The developers have demanded a guarantee of 500 years," says Martin Ryffel. The request was impossible to meet as it is. The needles carbon may well be small, 500 years is ten times too much for the wheels that wear out. The parade was to ensure the sustainability of the clock, but not its components. "You should not change the car if you can repair it," Martin compares Ryffel. It's the same clock.

After a successful test at Dubai, Makkah Clock has been hoisted to Mecca. But Martin Ryffel was not on the trip: "Not being a Muslim, I'm not going to Mecca," he says.

In the holy city, the Swiss clock is integrated into the Abraj al-Bait project, estimate at 1.6 billion dollars and visible within a radius of 25 kilometers. Royal gift to the Muslim world, the Abraj al-Bait dominate the Grand Mosque. Its clock will determine the Islamic Mean Time, Mean Time away from the meridian of Greenwich, imposed by the West.

Five years of work

The site of the holy city must end next spring, after five years of work. The designer of the clock he will attend the inauguration? "Only if I receive an invitation. But I do not want at all costs, "says Martin Ryffel. The engineer is already busy with another project: the installation of 250 giant umbrellas in Medina, Saudi Arabia still.

By the numbers

Makkah Clock

425 meters: the height of the Makkah Clock, on its axis.
46 meters: the diameter of the clock.
22 meters: the length of the minute hand, the hour is 17 meters.
21 tons: the weight of the movement.
17 km: distance reading time at night, against the day 11 km.
21 000 white bulbs and green were set atop the tower.
500 000 LED integrated into the clock.
120 000 documents needed for the construction of the clock.
500 years: the duration of the warranty.

Abraj Al-Bait

7 laps up this complex that includes a prayer hall and four car parks.
95-storey Royal Tower, including 60 reserved for a 5 star hotel.
65 000 people: the population of the seven towers.
864 permanent residences.
$ 1.6 billion: the budget of the promoters, but the cost is estimated at 2 billion.

Translate from: http://www.lematin.ch/actu/suisse/ho...-mecque-340335

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Old November 6th, 2010, 08:35 PM   #6184
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Nice, but they still don't say a thing about the movement . I know most people don't care but few like me are interested in the technology and mechanics rather than just the number of diamonds and weight of gold on a clock.
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Old November 6th, 2010, 09:08 PM   #6185
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Quote:
Originally Posted by Matthieu View Post
Nice, but they still don't say a thing about the movement . I know most people don't care but few like me are interested in the technology and mechanics rather than just the number of diamonds and weight of gold on a clock.
It's interesting...but for now it's TOP SECRET!

Try to contact the engineer Martin Ryffel at Straintec company, Wollerau

If you speak french ..try to have help here they have a forum: www.horlogerie-suisse.com

or here: http://forumamontres.forumactif.com/

Good luck! or Bonne chance!

Last edited by Roukaya19; November 6th, 2010 at 09:23 PM.
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Old November 6th, 2010, 09:36 PM   #6186
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I can't find the information formally but rather elements of answers. The clock is using lighting rods to deviate power surges away from the movement, so that hints (I say "hints" but that's a big "hints") an electronic movement rather than a full mechanical one.

I can't affirm it 100% but with the fact it rings (or rather sings) at different times every days would tend to confirm it's using electronics. Now it's a mechanical display and the components might be impressive, but too bad it doesn't seem to be a wonder of clockwork engineering. Not on the mechanical side at least.
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Old November 6th, 2010, 11:10 PM   #6187
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Okay, this is a stupid question, but I've been wondering this for a long time.
How do they get the colors to change during the night?
Are there tiny holes through which lights poke out, or what?


Also, I have to agree with Matthieu. I saw pictures of the gearbox that turns the hands, and it looked to be about the size of my head. I was not impressed. It's probably driven by a motor with an electronic timer of some sort. I'm still interested to see exactly how it works, though.
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Old November 6th, 2010, 11:30 PM   #6188
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Motor of the Clock
















image hosted on flickr


Last edited by Roukaya19; November 6th, 2010 at 11:47 PM.
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Old November 6th, 2010, 11:57 PM   #6189
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"Light's Secret"













Last edited by Roukaya19; November 25th, 2010 at 06:06 PM.
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Old November 7th, 2010, 12:15 AM   #6190
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Well, can't say I'm not disappointed by the movement of the clockwork .
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Old November 7th, 2010, 12:24 AM   #6191
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Last edited by Roukaya19; November 7th, 2010 at 05:16 PM.
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Old November 7th, 2010, 12:28 AM   #6192
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yah, but the decoration and the lighting seems to be a hell lot of work
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Old November 7th, 2010, 12:31 AM   #6193
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Inside Abraj al Bait


Last edited by Roukaya19; November 7th, 2010 at 05:20 PM.
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Old November 7th, 2010, 02:34 AM   #6194
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Why not?

Would you not wear a shirt with St. Joseph's Oratory on it?

I'd wear both
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Old November 7th, 2010, 11:00 AM   #6195
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cool t shirts
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Old November 7th, 2010, 11:04 AM   #6196
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I would had expected the clock mechanics to be something more complex
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Old November 7th, 2010, 04:33 PM   #6197
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On topic please **Tries to be nice and grabs his last bit of patience left for this thread**
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Old November 7th, 2010, 05:37 PM   #6198
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thanks for your effort. appreciate it.
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Old November 7th, 2010, 11:20 PM   #6199
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I never went off topic
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Old November 8th, 2010, 05:49 AM   #6200
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Apologies if it's already been mentioned, but where can I get me one of those cool Abraj Al-Bait Tshirts?
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