The Best Timepiece In The World (IMO): Strasbourg Cathedral's Astronomical Clock

The best timepiece in the world (IMO): Strasbourg Cathedral's Astronomical Clock

The Best Timepiece In The World (IMO): Strasbourg Cathedral's Astronomical Clock

I could go on about this thing for ages. There's so much history, so many symbols to spot, and so much information on display... This is going to be a long one.

I guess I'll start with the artistic aspect on which I have the least to say because it's the least up my alley. There's loads of mythology and Christian symbolism going on on this 18-metre tall monument, and these are the main draw for the general public, because they move around.

The Best Timepiece In The World (IMO): Strasbourg Cathedral's Astronomical Clock

Like cuckoo clocks in neighbouring Schwarzwald, this astronomical clock has automatons. Every quarter hour, the lower level of the photo above sees a change of "age": a child, a young man, an adult and an old man take turns to be in the presence of Death, whose bells toll on the hour. At high noon, the upper level also moves, with the 12 disciples passing before Christ, and the rooster at the very top crows.

The Best Timepiece In The World (IMO): Strasbourg Cathedral's Astronomical Clock

Moving on to what really makes me tick: the amount of information on this clock is incredible. The time, obviously, but actually two times are on display on the clock at the bottom of the picture above: solar time and official time. Given Strasbourg's position in the time zone, there is a 30-minute discrepancy between the two. Then there's all the astronomical stuff, like the phase of the Moon (just visible at the top), the position of the planets relative to the Sun (middle of the picture), a celestial globe at the base (pictures below, on the right)...

The Best Timepiece In The World (IMO): Strasbourg Cathedral's Astronomical Clock
The Best Timepiece In The World (IMO): Strasbourg Cathedral's Astronomical Clock

The main feature behind the celestial globe is another clock displaying solar time, with the position of the Sun and Moon (with phases) relative to the Earth, sunrise and sunset times, surrounded by a yearly calendar dial. These have remarkable features, such as the Moon hand that extends and retracts, making eclipses noticeable, and the calendar has a small dial that automatically turns to place the date of Easter at the start of each year. This sounds easy, but look up the definition of Easter and note that this clock is mechanical, no electronic calculating power involved! Either side of the base, the "Ecclesiastic Computer" and the "Solar and Lunar Equations" modules work the gears behind these features.

The accuracy of this clock and its ambition for durability are truly remarkable. Relative to modern atomic time, it would only need adjusting by 1 second every 160 years, and it correctly manages leap years (which is not as simple as "every 4 years"). It just needs winding up once a week.

The Best Timepiece In The World (IMO): Strasbourg Cathedral's Astronomical Clock

Finally, the history. The monumental clock was built in the 16th century, and used the calendar dial above, now an exhibit in Strasbourg's city history museum. It slowly degraded until the mid-19th century, when Jean-Baptiste Schwilgué restored the base and upgraded the mechanisms. The "dartboard" on the old dial contained information like the date of Easter, whether it is a leap year, which day of the week the 1st January is... - all of which had to be calculated by hand before the dial was installed! - and was replaced by the Ecclesiastic Computer, which freed up the centre space for the big 24-hour clock, complete with Solar and Lunar Equations.

As you may have gathered, I am a massive fan of this clock. Of course, nowadays, all the imagery and information would easily fit into a smart watch, but a smart watch isn't 18 metres tall and powered by gravity and gears!

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5 months ago

Your typical Breton winter weather...

Your Typical Breton Winter Weather...

11 years ago, our group of friends was celebrating New Year on the coast of South Brittany. It was a windy time, sometimes even stormy (the drive back a day or two later was possibly the most dangerous I've ever done), and it made for some impressive shots of waves breaking at Port aux Moines.

Your Typical Breton Winter Weather...
Your Typical Breton Winter Weather...

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9 months ago

February 2020 was weird

In my mind, visiting Oberkirch mid-February 2020 as my last outing before lockdown in Europe. Actually, that's not true - late February I went to Western France and Paris... but this was indeed my last solo excursion. I went for the carnival, which did take place, but Covid was very much on the horizon at that point. So there's something special about looking back at seeing people at the castle, enjoying the views and nature while it was still possible.

Likely father and two children taking in the view of Oberkirch town from Schauenburg castle ruins.
Likely couple sitting on a low castle wall, seen through the door opening of the dungeon.
The Covid epidemic would be very positive for this black carpenter bee and others of its kind. Fair weather and less human interference made 2020 a great year for honey.
Last look at the winter vineyard beneath Schauenburg castle.

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2 months ago

Remembering Eddie Jordan

Remembering Eddie Jordan

I started watching Formula 1 properly around 1998, which meant that my introduction to the Jordan Grand Prix team, which made its top-class debut in 1991, was with the awesome yellow and black "hornet" liveries. The squad mounted an unlikely title challenge with Heinz-Harald Frentzen in 1999, and, while I was more of a Häkkinen fan at the time, if Frentzen had done it, I'd've been chuffed too.

Remembering Eddie Jordan

Unfortunately, I cannot remember seeing any of these "hornet" cars in person. But I have seen a couple of Jordan's cars up close: a Honda-powered EJ12 at the Honda Collection Hall at Motegi (1st picture), and the second, at the private collection of the Manoir de l'Automobile in Brittany. It is painted in the team's 1997 "snake" livery, but it's not a 1997 car (the airbox out of shot is wrong). It has a high nose, which Jordan started using in 1996, so it could be a repainted demo car recycling the 1996 type, but then the sidepods are wrong! I think it's a 1995 car, with a 1996 nose, in the 1997 colours. What a mess!

Remembering Eddie Jordan

Ultimately, Jordan was a midfield team that allowed good drivers to beat the front runners from time to time, and that, for one year, looked like it could morph into a top squad itself. Alas, that didn't transpire, but I will remember the yellow cars very fondly.

Cheers, Eddie!


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3 months ago

The trains the E10 will replace

Following the announcement of a new Shinkansen type due to enter service on the Tôhoku Shinkansen in 2030, let's have a quick look at the oldest trains on the line, that will be replaced.

The Trains The E10 Will Replace

The E2 is the oldest high-speed train type that JR East owns, and many examples have already been retired. Built for the slower Jôetsu route to Niigata, they operate the Yamabiko and all-stop Nasuno services.

The Trains The E10 Will Replace

The E10s will also replace E5 sets. This sounds unreal to me, the E5 is the pinnacle of Shinkansen, still the only train running at 320 km/h in Japan (coupled with the E6, when the couplings work), and still young, having been introduced in 2011! Granted, by 2030, the first E5s will be nearly 20 years old, but they're probably not going to disappear completely in one go.

Photos taken at Utsunomiya station (as far North as I've ever been in Japan).


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4 months ago
Another Quick One Today I'm Afraid, But Some Really Nice Memories From Just Over 4 Years Ago: A Proper
Another Quick One Today I'm Afraid, But Some Really Nice Memories From Just Over 4 Years Ago: A Proper
Another Quick One Today I'm Afraid, But Some Really Nice Memories From Just Over 4 Years Ago: A Proper

Another quick one today I'm afraid, but some really nice memories from just over 4 years ago: a proper layer of snow and frozen ponds at the Citadelle.


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3 months ago

Châteaubriant: a regional rail hard border

Châteaubriant: A Regional Rail Hard Border

Rennes and Nantes, the largest cities in the Western tip of France, could have three direct rail routes connecting them. The one via Redon has always been used in this role; a second, via Laval and Angers, was ridiculously long until the high-speed line to Laval opened and 200 km/h-capable units were adapted for use on it; and a third... has been cut off at Châteaubriant.

The irony is, the Châteaubriant route would be the shortest in distance, at just over 120 km in length, in a fairly simple North-South direction. The trouble is, the line wasn't built with the traffic between the two cities in mind, is mainly single track, and has some steep inclines (1.5% is steep for a train). As such, it has always seen modest levels of traffic, and since the 1980s, it had been falling into disrepair in parts, and become abandoned in others.

Châteaubriant: A Regional Rail Hard Border

The Nantes side saw a resurrection in the early 2010s: the line was electrified and, in 2014, tram-trains began operating. We've seen a tram-train on this blog before, but this service is only technically a tram-train, as it only uses a tram line parallel to the urban tram for a few kilometres inside Nantes, and only making one stop on that stretch. The Alstom Citadis Dualis (SNCF class U 53500) units are effectively regional trains in tram clothing, and are the only tram-trains in France to have onboard toilets.

Châteaubriant: A Regional Rail Hard Border

But in France, local trains are managed by the administrative regions, and Nantes to Châteaubriant is under the authority of Pays de la Loire, so the electric wires, renovated stations and new trains went no higher. Worse, the line has been cut in half by a platform link, as shown above - and a photo on this webpage seems to indicate they used to be joined. So the Rennes side, managed by Bretagne region, has remained without electric power. I remember the stark contrast between the two sides of the regional border when I visited in early 2020: to Nantes, modern infrastructure and trains; to Rennes... nothing, and tracks that were starting to be overgrown!

Châteaubriant: A Regional Rail Hard Border

It turns out the line was indeed closed for repair works at the time, and in 2021, Rennes to Châteaubriant reopened, with first-generation bi-mode Bombardier AGC (B 82500) sets, which only use Diesel power on this route, operating a peak-only service.

In conclusion, the Rennes-Châteaubriant-Nantes route has always been in the shadow of the slightly longer route via Redon, as the latter provided good connections to other major towns on the South Brittany coast: Vannes, Lorient and Quimper. The Châteaubriant route was never double-tracked, and today is a striking illustration of regionalisation, with different levels of investment on either side of the border, and through service now impossible.


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2 months ago

Suzuka Circuit

The steep downhill start-finish straight at Suzuka before the start of the morning session

April became Formula 1 month for Suzuka last year, but back in 2018, it was the venue for a Super GT test weekend. I took the opportunity to enjoy the circuit in a much calmer atmosphere, though the weather was very changeable on the day (I got drenched walking down to Inô station afterwards!).

Suzuka Hairpin corner

Opened in 1962, the track is very much enjoyed by drivers for its large variety of corners (the Esses, hairpin, chicane, the double-apex sweeper at Spoon, the dauntingly fast 130R...), and has an unusual figure-of-8 shape, crossing over itself - the bridge is before this hairpin, just out of shot on the left. On a test day like this, most grandstands are open to all, offering the viewer a similar variety of angles and vantage points.

Lexus Team LeMans driver James Rossiter meets the fans in the paddock

The paddock was also open for the relatively few fans to walk around and have a chance to meet the drivers (James Rossiter pictured above). But even then, 2018 was the year Jenson Button was racing, and his garage got a lot of attention!

Cars running through the Esses during the damp afternoon session

Despite the weather which turned miserable in the afternoon, the teams didn't shy away from running. There were even a couple of Safety Car training moments: rolling restart, and full SC procedure with class separation.

Safety Car procedure training on the start-finish straight

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1 year ago
A Last, Albeit Light, Taste Of Winter For This Season In The Hills Of Southern Schwarzwald. There Should
A Last, Albeit Light, Taste Of Winter For This Season In The Hills Of Southern Schwarzwald. There Should

A last, albeit light, taste of winter for this season in the hills of Southern Schwarzwald. There should have been a lot more snow in this area in February, but still saw some, both on-site at Titisee, and in the distance, on the Alps visible from the village of Saig. With my sister, we walked through a snow shower on the way back down!

Not the first time we've been to this area. A train goes from one lake at Titisee to another at Schluchsee, with this cheeky station on the way:

A Last, Albeit Light, Taste Of Winter For This Season In The Hills Of Southern Schwarzwald. There Should
A Last, Albeit Light, Taste Of Winter For This Season In The Hills Of Southern Schwarzwald. There Should

"Taaaaaaake the train!"


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1 year ago

Here we are: Miminashi-yama

Here We Are: Miminashi-yama

When I visited Kashihara, looking to explore some deep Japanese history in the former province of Yamato, I expected to move around a bit, but there was actually enough in Kashihara itself to make for a busy day.

First up was this curious green round space in the middle of a residential area on the town map I'd picked up. It just seemed conspicuous to me, I decided to check it out.

Here We Are: Miminashi-yama

This is Miminashi-yama, one of the Yamato Sanzan, or Three Main Mountains of Yamato. Though it stood out on the map and it does stand out in the plain around it, it's not huge, and it's a short climb to the top where a shrine awaited.

Here We Are: Miminashi-yama

In that shrine, a sangaku geometry tablet is displayed. By chance, based on a whim, I had found one! Nearly six years on, I've finally solved it - it's not very difficult mathematically, it's just taken me this long to get on with it, having said that, even today I'm still figuring out extra things on it! - and will be presenting it at a conference tomorrow. I wouldn't have thought it at the time... I guess curiosity didn't kill the cat that day!

Here We Are: Miminashi-yama

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1 year ago

Sounds like a train, but isn't: the Saig to Titisee Rodelbahn

In fact, it's just a footpath. OpenStreetMap puts it at 1.2 km in length, and it's all downhill from Saig. A 165 m drop to be precise, which means an average gradient of nearly 14% - that is steeeep with four Es. In the winter, it should be covered in snow, and, with its four turns, you'd figure it would be a really cool route for tobogganing...

Well, that's what a Rodelbahn is, it's a sled/luge/toboggan track! If you look up the term, you'll come across summer Rodelbahns which are rides on rails (little roller coasters, I've seen one next to the Arzviller boat lift that I'll probably talk about one day, and the Bobbahn is a cracking bobsleigh-style ride at Europa-Park), but this is a natural Rodelbahn. Which runs on a hiking trail, so a few rules need to be laid out, such as pedestrians should hug the inside of the corners.

Sounds Like A Train, But Isn't: The Saig To Titisee Rodelbahn

Most of the trail is in the forest, but once (if!) you reach the final stretch, the ride into Titisee with this view of the lake must feel incredible.

Sounds Like A Train, But Isn't: The Saig To Titisee Rodelbahn

Notice on the left that the base of a pole has got some padding around it... That's not (just) for visibility in the snow! If you can zoom in that far, you might notice that the walls of the bridge at the bottom are padded too.

You'll probably be thinking "again!" once you've reached Titisee, but, as we joked with my sister, that "again!" won't come soon - you've got a long, steep climb back up to Saig first! Those numbers, 1.2 km and 14% gradient, aren't so amusing when starting from the bottom... And the train from Titisee to Schluchsee mentioned yesterday doesn't stop at Saig! XD


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merpmonde - merpmonde - the finer details
merpmonde - the finer details

Landscapes, travel, memories... with extra info.Nerdier than the Instagram with the same username.60x Pedantle Gold medallistEnglish / Français / 下手の日本語

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