The Solar Heater - From strange thoughts to the champion of the class!

  Today I am so happy that my group's solar heater was the best (or the most efficient one) in my class!

  At the very beginning, when the Physics teacher told us about this project, I felt excited about making a real one! At that moment, I figured out a model with curved design. And after doing some researches, I was sure that using curve design is the best one, so that I chose my old broken yellow umbrella to be the main body. However, my dearest Physics teacher, questioned me a lot about my design and idea. I tried my best to explain the reasons, but seemed that he was not understand. I was a bit angry and sad because I could not believe I idea was that bad in his mind! And here is the link which ensured me of the main design of the solar heater.

http://en.wikipedia.org/wiki/Solar_cooker

  Whatever, I didn't care about his comments. I just followed my own idea to build the solar heater. And it was quite hard during the process because it was really hard to break an umbrella!!

I used about half an hour to cut off all of those metal rods!

  With two helping hands of my dad and mom, I could make the shape of the solar heater within 8 hours! I was so happy about that! :D

Just finished making the stand of the can for heating up the water before I sleep.

And it could keep standing for a whole night! That's surprising! :D

  And then, I finished the remaining parts of the solar heater with my group mates, Jenfer, Brian and Coco. All of them were so helpful that they did a lot of things for me such as cutting more plastic rods, aluminium foil and painting the can. If they did not help me to do those procedures, I think that I would not be able to finish it! Thanks a lot!

Painting the stand of the can. Thanks Coco! <3

Wrapping the inner surface by aluminium foil. Thanks Coco again! :D

Adding  an additional wall, wrapping the outer surface by a  black plastic rubbish bag. Thanks a lot, Brian!! XD  

  Actually, Jenfer did something too, but I didn't take photos of the jobs she had done... Sorry, Jenfer! ><

  And today is the day of the solar heater competition. I was nervous and excited at the same time. Before the starting time, all of us made many amendments to improve its performance. Jenfer helped us to take the solar heater out of the laboratory to start the competition. After an hour, she took it back. All of us were surprised that the can was warm! When the Physics teacher measured the temperature of the water from the can, its infra-red thermometer showed its reading: 37.2 degree Celsius! I was so happy at that moment. Even I jumped and screamed! Of course, I became even more crazy and happy because my group's reading was the highest among the class! Although my DEAREST  Physics teacher still complained about the outlook of it, I was still so happy. Because it showed that his bad comments of my idea were TOTALLY WRONG and FAIL!! THE CURVED DESIGN IS NOT THAT BAD! MY IDEA IS NOT THAT BAD!

  AT last, I need to say another thank you to all of my group mates. Without supporting and helping me, I would not be able to build this solar heater and perform well. Love you~ <3

PS. Sorry that I could not take the picture of the final product, and I will post it as I can get back it! @0@