Ohh, and how did you make the bridges?? =]
librarymaniac1o 4 years ago
The trusses are balsa glued together.
mattnet 4 years ago
That's awesome! I'm kind of slow, how do you know how many pounds of force it took to break the bridge?
To the right of the video, you can see the string is being pulled by a brass hook which is attached to a fish weighing scale. As we pull on the string using the spring scale we read off the force as it increases until it snaps.
Ohh, and how did you make the bridges?? =]
librarymaniac1o 4 years ago
The trusses are balsa glued together.
mattnet 4 years ago
That's awesome! I'm kind of slow, how do you know how many pounds of force it took to break the bridge?
librarymaniac1o 4 years ago
To the right of the video, you can see the string is being pulled by a brass hook which is attached to a fish weighing scale. As we pull on the string using the spring scale we read off the force as it increases until it snaps.
mattnet 4 years ago