thewayne: (Default)
The Wayne ([personal profile] thewayne) wrote2019-02-19 12:57 am

For your entertainment, the Prague Astronomical Clock

And the Wikipedia entry.

The whole clock, though to be honest the Wikipedia photo is better:



Whoever shot the Wikipedia photo had much better alignment. Our tour group arrived much too close to noon and getting anywhere near the clock wasn't easy. At least my photo gives you a better sense of scale.

The clock, also called the Orloj, was first put in place in 1410! It is the oldest astronomical clock in the world that still works. The lower dial is really a astrological dial though, it shows the calendar in the first quarter or so of Scorpio. The photo was shot on the 26th of June 2015 if you care to check. Let's face it, a scientific understanding of astronomy in 1410 just wasn't that strong - this clock was built almost 200 years before the birth of Galileo who is considered the father of modern astronomy - most astronomy in the 1400s was geocentric, heliocentrism didn't really take off until CopperknickersCopernicus, who was born some 50 years or more after this clock was built.

Closeups and more wordiness from me under the cut. And as always, clicken to embiggen.

Closer look of the whole thing:



Unfortunately I didn't get perfect coverage with my photos for a stitch, but I thought it better to leave some blank areas. What I'm curous about is there's clearly a door on the left side of the top dial, and a bricked-in area on the right side. So was there a door, and it was removed for some reason? The clock was badly damaged during some fighting in WW II, so it's a possibility.

The four upper figures are animated and have limited movement on the hour. They show figures that were despised at the time: Vanity, a Miser or Userer, Death, and Lust or Earthly Pleasure. The two windows above slide open on the hour and show a cavalcade of the apostles stream past the windows.

The clock face shows the earth and the phase of the moon. According to Wikipedia, "These numbers indicate Old Czech Time (or Italian hours), with 24 indicating the time of sunset, which varies during the year from as early as 16:00 in winter to 20:16 in summer. This ring moves back and forth during the year to coincide with the time of sunset."

Wikipedia goes on to say: "The golden Sun moves around the zodiacal circle, thus showing its position on the ecliptic. The sun is attached to an arm with a golden hand, and together they show the time in three different ways:

The position of the golden hand over the Roman numerals on the background indicates the time in local Prague time.
The position of the Sun over the curved golden lines indicates the time in unequal hours.
The position of the golden hand over the outer ring indicates the hours passed after sunset in Old Czech Time.

Additionally, the distance of the Sun from the center of the dial shows the time of sunrise and sunset. The Sun and its hand are on the 365-tooth gear inside the machine."


These photos were shot at 11:58am Prague time, so if you can figure out how to read it, more power to ya!

Lower face:



The outer ring of the lower dial that counts the days of the year was added some time later. That's two independent rings, the inner showing the zodiac and presumably the planting/harvesting seasons, the outer the days of the year. I really like the angel to the left - she's left-handed! I'm a little perplexed why they'd use a sinister angel.

It turns out that for the last couple of years that the clock was running on an electric mechanism while the original works were overhauled last year, but now the original guts are back in place.

Now, to be honest, while this is a cool clock to see and has some very interesting history behind it, it is definitely not interesting to hear. It's just a single tone BONG BONG BONG. If you want to hear something cool, you want to hear this....




This is the Dresden Porcelain Carillon. Near Dresden is a place called Meissen, a world-famous porcelain works. The story that we were told was that the King of Saxony received Chinese guests who showed him Chinese-made porcelain, but wouldn't tell him how it was made. So he set craftsmen to figure it out, and they did. And they've continued the tradition. The carillon is built in to the Zwinger, which was part of the old city's original wall and fortifications, it now holds an Old Master's gallery and a fine porcelain collection. I don't know why, I guess it isn't singularly important enough, but it doesn't have a Wikipedia entry of its own! Regardless, if you search YouTube for Dresden Zwinger Glockenspiel, you'll find some amazing videos. The tune it plays is changed quarterly, and it plays the longest tune at 10:20AM! If you show up at noon expecting a grand performance like an American clock might do, you're bound for disappointment.

Anyway, these porcelain bells sound absolutely incredible. It is simply an amazing performance. Dresden is about 2 hours north of Prague by car or train, so if you find yourself in one or the other, GO FOR IT! Dresden is a place that I really want to spend a couple of weeks in with little or no agenda, we were there for about three days when the ship was immobilized due to low water levels in the Elbe: shuckie-darns! We had to amuse ourselves for two extra days in an amazing city and had our hotel and meal service stuck there with us!
moxie_man: (Default)

[personal profile] moxie_man 2019-02-19 11:00 am (UTC)(link)
Neat. Thanks for sharing these photos.
dewline: Interrobang symbol (astonishment)

[personal profile] dewline 2019-02-19 11:10 am (UTC)(link)
Wow.

Just...wow.
dewline: Text - "On the DEWLine" (Default)

[personal profile] dewline 2019-02-20 02:33 am (UTC)(link)
Unless we manage to dismantle a lot of security theatre in the next decade or two and my finances get a lot better...
silveradept: A kodama with a trombone. The trombone is playing music, even though it is held in a rest position (Default)

[personal profile] silveradept 2019-02-19 03:13 pm (UTC)(link)
The architecture of those clocks and carillon is gorgeous. And it seems like they were pleasant to listen to, as well.
silveradept: A kodama with a trombone. The trombone is playing music, even though it is held in a rest position (Default)

[personal profile] silveradept 2019-02-19 05:17 pm (UTC)(link)
That is, indeed. And also some amount of foresight on the idea that war might come back to say hello if they decided to get in to it elsewhere.
acelightning: the famous photo of Earth seen from space (Earth)

[personal profile] acelightning 2019-02-20 07:28 am (UTC)(link)
My globetrotting astrophysicist friend [profile] anarchistnomad went to Prague, and was utterly gobsmacked by the Orloj. When you think about all of the clockwork contraptions people built in the times we think of as the "Dark Ages", it's truly amazing. (Especially since I now need to get me to an orrery!)
acelightning: cartoon me in workshop with assorted tools (gearhead)

[personal profile] acelightning 2019-02-21 09:13 am (UTC)(link)
It's truly amazing to see what was built with clockwork back in the day! They figured out ways to measure things very precisely, which led to incredible feats of gear design.

The only place in Europe that I've ever been was Iceland, and smoking wasn't tremendously common there. When I went to Australia, I was dismayed by the amount of smoking I encountered. I would suspect that Europeans are going to take up "vaping" fairly soon - it's just a much more polite way to ingest one's drug fumes. (It seems to me that most users of medical cannabis, like me, prefer vaping to smoking.)

Public smoking is worst in most of Asia - industrial coal smog is not the only source of air pollution in China.

acelightning: (tiara)

[personal profile] acelightning 2019-02-22 08:09 am (UTC)(link)
It's astonishing that the ancient Greeks had discovered the principle of gears, and worked out the math to use them to compute astronomical positions. That's like finding out that Australopithecus had hang-gliders.

Edible cannabis products take a very long time to take effect, and they're rather awkward to titrate. But it's between a patient and their doctor, of course. (Back when I was a hippie, I had no problem setting the stuff on fire and sucking down the smoke, but that was the only thing I ever smoked. Now I'm much happier with the vaping process, which is a lot less harsh on the lungs and throat. It seems to be replacing smoking as the method of choice for nicotine addicts to get their fix.)

acelightning: jet plane zooming upward out of clouds (flight)

[personal profile] acelightning 2019-02-22 10:47 am (UTC)(link)
Aviation writer Richard Bach had an essay in one of his books in which he asked, "What if the ancient Egyptians had gliders? They had sticks, they had leather and cloth, and maybe they could have launched their gliders off the pyramids!"
acelightning: round purple control-panel light (jewel-light)

[personal profile] acelightning 2019-02-23 07:23 am (UTC)(link)
In a skirt.