Today is our big day: Our first visit to the Deutsche Museum. We stayed here the whole day to learn two lessons. One was Genetic Fingerprinting Course, which was about DNA science, and the other was scanning tunneling microscope(STM), which naturally falls under the are of Nanotechnology. We divided into two groups, learning each lesson by turns. I was excited to start with Genetic Fingerprinting Course.
Our instructor told us what would we learn and the background of the murder case that we needed to solve as a starter. The information we had were the murder's DNA and other four suspects' DNA too. The experiment was to replicate DNA, then we could use gel electrophoresis to separate and find out which suspect's DNA had the same feature as the murderer's DNA. The first step was putting the master mix, which contained primer, polymerase, and nucleotides, with one DNA template together. We had to compound five solutions because we had five templates. Then we put all of the solutions into a thermal cycler to start the PCR reaction. An hour later, we completed the DNA amplification. As we got enough DNA samples, we analyzed them by the gel electrophoresis and dye the whole gel(which touched like a jelly) in blue color. After that, we saw many lanes come from wells. We found that one of the lanes had showed same features of bands with the sample of the murder’s DNA. It meant this suspect was the real murderer in the accident. We went to the nanometre lab in the afternoon. At the beginning, the instructor showed us the examples of the nanotechnology in nature world. We learned the gecko's feet, lotus effect and its application, and the science in nano-particle of silicon dioxide. Our instructor used questions to guide us thinking and answering by ourselves. It let us learn a lot from this process. After we learned about the nanotechnology, we started to do a worksheet to experience the employment of STM. We got a paper that showed us a picture which was taken from the STM screen, then we had to find out what it was. At first, we should measure the length of the picture to calculate scale. We also needed to measure the distance between several atoms in three directions to get enough data. Second, we used these data to calculate the atomic distance, changing it into the real distance with the scale. Third, we compared the atomic distance that we calculated with four possible substances.
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Deutsches Museum X Deutsche Aircraft Museum X BMW Recycling & Dismantling Center, München |
After lunch, we went to Lac Leman to swim. Chris, Andre and Gary were the bravest because they jumped off a high tower into the water. Jason, Casper, Willie and I swam to a little boat, jumped off and then swam back to the shore to take a rest. Then I suggested that we go and find Chris, Gary and Andre; but we didn’t find them, so we went back to the beach. On the way back, we met them. Then, we saw some women that were sunbathing topless. Willie was so startled that he kept on laughing. After that, we played on a water slide. Chris swam to a deep part of the lake and climbed onto a flat platform. He tried standing on the platform, but it kept on moving. Finally, he jumped into the lake. That was a bit dangerous, because there was a lot of seaweed in the lake. Before leaving Lac Leman, we borrowed a ball and played volleyball in the lake. A young couple joined us and played for a little bit. At 1930, we left and proceed to the restaurant - chez ma cousine, where we each ate half a chicken and half a salad. |
By Eric Shen
This was the last day we did a project at TU Delft. In the Engineer for a day class, we were given a particularly challenging project-designing an underground shopping mall in the city center of Rotterdam. The goal was to design a safe shopping mall that wouldn't be dark and humid, and would serve as a landmark for city. To make this a reality, we needed to think of what all the stakeholders expected and think of how to accommodate their needs.
We were divided into two teams. First, we started with a brainstorming session for the design of underground mall after listening to the teacher's explanation. Then, we asked for the feedback and built a model for our own plan. Finally, both of the team represented their ideas to everyone. At first, each member of our team wrote down their ideas to find out what we thought were the important features of our mall. After we had collected and organized our opinions, we listed all of the decisions that we had made and showed it to the instructor to receive feedback.
After that, we started to build the model to realize our plan. Because we didn’t have time to draw a blueprint, I felt confused about what I should do at first. However, we still finished our model before the deadline. Finally, after many hours of thought, it was time to present our design. Some of the special features our mall would have, included: a prism that would disperse sunlight in the center light well, ceilings and floors that were see-through (acrylic) and also served as fish tanks, and an e-sport area next to a big indoor park. I thought these ideas would make our mall a must-see destination.
As promised, we did geocaching in Delft after we had completed the urban design project. The most amusing part of the treasure hunt was that the biggest box we found was hidden in the corner of a fish store. It was so easy to skip it that we could't find it at first sight even though it was big. The last activity we did that day was to walk to to the top of the spire of the New Church. While we were climbing the stairs, we saw the bells and the mechanism of the clock in the tower. When we were on the top, we could view the whole city with our eyes with the cool wind blowing through our hair. That was the perfect way to end our time in Delft!
TU Delft
By Jason
Today we have a fun time and experienced new experiences. This is the first time that I had used a canoe and Lego mindstorm EV3 robots. In the morning, we went to TU Deflt for a robotics course. Our EV3 teacher was Micheal. He was a really nice patient guy, He is also a student in Mechanical Engineering. In the EV3 course, Micheal showed us how to use the robots and then he gave us some tasks. Willie and I were the first team to finish the first assignment, which was to finish a course by going around different blocks and under a bridge. We even managed to finish the second task. But, unfortunately, it was already break time so it didn’t count.
After lunch we had a guide who led us to check out the different faculties at TUDelft related to robotics. It was really awesome to see the college students create new things .Later, we went to canoe in the countryside. It was fun, although I bumped into the reeds a lot of times. It was really bad to crash into the plants. It was disgusting because the bugs crawled all over us. However, it was still a great day in the end!
TU Delft
By Casper Huang
Today, in the workshops held at the TU Delft Science Center, we designed and built chairs and bridges by ourselves. In the first workshop, my group didn't finish our chair, because we had too many ideas that we wanted to include. In the end, we managed to present a design, though we weren't able to sit on it.. Michael, who was the judge, decided that even though we we were not able to completely assemble our chair, it was the most luxurious. In the second workshop, we learned about bridge design. After giving us a lecture about bridge design, Michael gave us a task. He asked us to build a bridge using only balsa wood, nails, and string. The bridge had to span a gap of 80 centimeters. Our group's bridge didn't looking cool, but when Michael added weights we discovered it could carry 3 kilograms. It broke when he added another 1-kilogram weight. One other team's bridge could also carry 3 kilograms, so in the end it was a tie.
After these fun and challenging workshops, we went on the TU Delft Backstage Tour. We toured the library, the civil engineering labs and the applied physics building. The two most interesting places our tour guide showed us were an echo chamber and an anechoic chamber (the Death Room). In the Death Room, your voice doesn't bounce back, and it's super silent. You can't hear any noise. In the echo chamber the opposite is true. It is super loud when a person makes a sound. A sound can echo for up to for 9 seconds.
STEMEducation
科學、技術、工程、數學
美國教育部將其列入為國家競爭力指標及未來經濟繁榮的關鍵能力
Intro To Tomorrow's Job
The central mission of the STEM Education Coalition is to inform federal and state policymakers on the critical role that science, technology, engineering, and mathematics (STEM) education plays in U.S. competitiveness and future economic prosperity.
出團日期: 7/07 - 7/22
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