So today was a long day. I woke up early so I could get ready before biking to the meeting place for our field trip today. I biked to the Hofgarten where we were meeting. Unfortunately, when we arrived there was no bus to get on to. In fact, the bus didn't come until an hour after it was supposed to, probably because the whole city was pretty much gridlocked because of the strike that was happening. Anyway, we got on the bus to go to Aachen (ah-hen) where I promptly fell asleep for the hour long ride it took to get from Bonn to the clinic.
When we arrived, we walked into the Aachen Biomedical engineering building and listened to one of the engineers talk about the different things that they were testing in their labs. This particular facility focused on the Cardiovascular System, so they had a lot of things on pumps, blood oxygenaters, valves, and other things that had to do with testing the products already being made to gather some money for the facility. After the short lecture, we took a tour of the labs, which was absolutely amazing to go through. We split up into two groups because bringing 24 people into a lab at one time is absolutely not at all possible. Our guide told us about all the different labs and what they wre testing over. We walked through a lab that was making and improving the pumping mechanism for their pulsified artificial heart as well as monitoring the effect that this had on the Vena Cava and Aorta and what the ventricle had to do to get blood up into the Aorta. It was pretty cool because they had reconstructed the ventricle and were making it contract and monitoring it. There was another room that was completely devoted to suturing the stents and valves by hand. Yeah, all of those things are done by hand in every place that makes them either for sale or for research. Another room was devoted to testing blood, while a different one was testing materials and a separate room only tested how long these implants would last (theoretically) once implanted. It was really interesting to go through all these rooms with a researcher that would explain what wsa going on in the lab at that point in time and what the ultimate goals were.
The institute we went to
They make these model hearts to help surgeons figure out how they want to operate
These molds are used to make artificial Aortas to test things with
After the tour ended, we hopped back on the bus to go to Aachen city center for lunch. Kelsey and I walked with a bunch of people, but soon split off to go find the stone oven baked pizza place for lunch and grabbed fro-yo on our way to the large church in the center of the city where we were meeting everyone. On our way to the church, we passed by two different large buildings, one was the town hall and another was I think another church. They were both beautiful, and we almost stopped at them, but a quick look at our map revealed that we hadn't quite reached the center yet. When we did finally make it to the church, we walked around and enjoyed the performers that had started playing right outside the church. We met up with everyone outside of the entrance and took a tour of the Treasury of the church and eventually of the church itself. The treasury was a compilation of all the things that the emperor Charlemagne was connected to such as his sarcophagus (sans body) and some of the things that he brought back from far away countries. There were a lot of displays that held various pieces of his bones like his arm bone, the top of his skull, his shin. All of these things were recorded to be from the same body that lived during the time of Charlemagne's reign, and everyone believes them to be the actual bones of Charlemagne, though the lack of DNA and knowledge of where Charlemagne was buried makes it impossible to say for certain.
The fiddler and Guitar performers outside the church
Kelsey in front of the city hall
The church. It should be noted this picture and the one above are across from each other.
I literally turned around from the city hall to take this picture
The cross that's the most valuable thing in Aachen
Charlemagne's sarcophagus he took from the Romans, which was then taken by the French during their revolution where they put flowers in it (destroying the DNA) before giving it back.
Charlemagne's skull in in the head of this display.
This holds Charlemagne's shin bone on the bottom, and 3 relics of the Passion: a piece of the cross, a thorn from the crown, and a bit of the nail.
Again, they were determined to be around the time Jesus lived in, but we can't know for certain.
This display held Charlemagne's arm.
After the treasury, we walked into the church, which was covered from floor to ceiling with mosaics of patterns and important biblical events. When Charlemagne ordered this church to be built, it only took 10-15 years to make it, which was remarkable for the time period. Behind the gate leading to the choir and alter area, we saw a gold leaf shrine that was said to contain the bones of Charlemagne, from the same person who's bones were in the treasury, though due to the scientific constraints I said before it's impossible to know without a doubt that they are Charlemagne's. There was also a shrine further up front that contained 4 pieces of clothing: Mary's robe, Jesus' loincloth and diapers, and one other piece of clothing that had to do with His passion to the cross. These are available for the public to view every 7 years, and this year at the beginning of June just happens to be one of those times. Again, it's impossible to know for certain, but when these were evaluated, it was determined that these pieces would have come from the same time period and place that Mary and Jesus would have lived in, so I'm inclined to believe it. This church was full of symbols, so there was one other thing I wanted to touch on. There was a bible holder made of an eagle with a bat on it's back. The eagle was one of the only things to fly toward the sun without being blinded by it, so it was seen as a noble animal, while the bat was the universal sign for evil. The thinking was that when the bible was placed on the eagle's back, the evil would be sandwiched between two good things and contain it so that no one would be tempted by evil.
First look at the ceiling of the church. Keep in mind this one and all the following are mosaics.
Can you imagine trying to make this?
I love stained glass windows
The eagle's front
The eagle's back. The Bible covers the bat.
I'm just in awe of the amount of work that must have gone into this.
We left the choir area and went up to the special tour only area. Why was it special you ask? It contained the throne that Charlemagne may have sat on. Charlemagne ordered it built, but it's unknown if it was actually a place that he sat during mass or if it was placed as a symbol that God would sit there on the 8th day when He came back into the world. We do know that all the emperors after Charlemagne sat on this throne because in order to be named emperor, they would have had to be crowned on this very throne. Naturally when the church became public, everyone wanted to sit on the throne, but because the city wanted to preserve this artifact, they stopped people from sitting on it and the throne is only able to be seen if you have a tour guide who can bring you up there. Otherwise the throne would have broken long ago from the constant pressure of people sitting on it.
The throne emperor's were crowned on
The "impenetrable barrier" that was enacted to keep people out.
Once the tour was over, we walked around for a little bit and sampled the local chocolate cookie called printen. It's special to Aachen, so it was quite the treat to try it out. Think a cinnamon and orange cookie covered in chocolate and you have a close approximation to what it tasted like. After a little bit of time, we met back up and walked to the bus, where I again fell asleep on the ride back to Bonn. When we arrived, I got my bike from old AIB and biked to new AIB where a lot of people were meeting to work on our Design History File and meet with our adviser later in the evening. When we met with the adviser, she did a group meeting with the 5 BMEN majors still at AIB. She told us what classes we would need to take next semester (we don't know because they change the degree plan
at least once a semester) as well as the classes we would need to take over the summer to get caught up with the regular schedule. Thankfully nothing too bad, just Differential equations as a big one and Organic Chemistry if we didn't want to take it next semester. After the meeting, we all got to work on the DHF and didn't get done until after 2 am. People started leaving after about 12:30, but I didn't want to go home because I just so happened to be wearing all black and due to the strike there were no buses running that could take me home. that means that I would have had to bike home in the dark at 2-3 in the morning, wearing all black. Yeah...that wasn't happening. Instead, I stayed at AIB with some others who were in a similar situation overnight. Hey, I had to sleep at school at some point in my college career, and the couches were comfy so I wasn't to concerned. Also, school ends really early today, so I plan on going home and sleeping after class.
There's nothing going on this weekend, though I almost went to the black forest with some people. It would have been a whole lot of fun, but I haven't been sleeping well and I need a little bit of time to reset myself after all the stress of this week, so no traveling for me. As of the end of this post (I wrote half last night) the sun is coming up and people are about to come in, so...
Guten Morgen!
Erin Z