Hi this is Hyun Seok Yoon. As the title says, I just made my first bridge for the science olympiad!
Although it took me 12 hours (whew..!) I could see the good result! It held 15kg!
I saw some other members’ bridge and recognized that the height and span things were different from our rule which is held in New York.
But there is one little problem. My bridge weighs 111g. I don’t understand why. I used balsa wood and bass wood both and only used 1/4×1/4 size. I think using only 1/4×1/4 is the main problem. I can’t upload the picture somehow, so I uploaded them separately. Please help me reducing the mass. Also, when I was
testing the bridge, there was a cracking sound. Can you tell me what that sound means?
It would be great to get advised from all of you.