History dating platform clock escapement

19-Jan-2018 16:07 by 8 Comments

History dating platform clock escapement - Java chatadult

After you pass the weights, you arrive at the winding station. For the next 70-80 feet of ascent you pass 20 huge horizontal gears (called Geneva wheels), 8 feet in diameter, each weighing 1,000 pounds.

Building something to last 10,000 years requires both a large dose of optimism and a lot of knowledge.

But in order to get the correct time, you need to “ask” the clock.

When you first come upon the dials the time it displays is an older time given to the last person to visit.

But it can’t ring its chimes for long by itself, or show the time it knows, so it needs human visitors.

If the sun shines through the clouds more often than expected, and if the nights are colder than usual, the extra power generated by this difference (beyond what is ordinarily needed to nudge the pendulum) will bleed over into the Clock weights.

There’s a huge geek-out factor in the Clock because the engineering challenges are formidable.

What do you build with that won’t corrode in 100 centuries? The Clock’s technical solutions are often ingenious.

It takes two or three visitors to push around the capstan of the clock and to lift its 10,000-pound stones. The chimes never repeat so that every visitor’s experience is unique, and the calculated variety creates a sense of progressive time, rather than endless recycling.

And “calculate” is the correct word, because cut into the gears is an elaborate system of slots and sliding pins, which, much like a Babbage Difference Engine, will perform digital calculations, generating the next sequence of the ten bells.

In the darkness you can hear things moving, crisp non-random pings, like a crude thought trying to form inside a dim unlit brain.

Shining your light around the rest of the chamber you’ll see the pendulum and escapement encased in a shield of quartz glass – to keep out dust, air movements, and critters.

If no one has visited in a while, say, since 8 months and 3 days ago, it will show the time it was then.

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