This newly launched YouTube channel, Know Brainers, put out their first video today.
Drew’s science fair was this past Friday, and he won a special award/ribbon for a “Superior” project. I’ve attached photos of he with his tri-fold board. He built/destroyed two bridges in order to prove his hypothesis, and so built a third (as seen in the photo) to show his classmates what they’d looked like. He … Read more
I decided, for the 50th birthday of the Verrazano Bridge, to put together a model. I always loved the bridge; I lived in its shadow in Brooklyn for years and now live on Staten Island, so I use it often. Being a 2 year dad, I get little time to work on it, and when … Read more
For this balsa wood bridge, I used a ‘K-Truss’ design with seven vertical members and 6 ‘K-Trusses’ per side. The K’s were the most challenging part of the build, because I had to calculate each ones length, and the approximate measure of the angle I had to cut into each one. All in all, the … Read more
This album highlights the Popsicle Stick Bridge that I entered into the Seattle ASCE Younger Member Forum’s Popsicle Stick Bridge Competition in 2009. This particular entry swept all first place prizes in every category: efficiency, aesthetics, and poster. It’s 30 inches long, 11 inches tall, 5 inches wide, weighs just under…
Here is a short, fun video showing creative bridge designs from very limited supplies. These bridges were required to be under 5oz in weight, but only had to span 8 inches. I like this video because it is pretty clear why each bridge failed. Can you see a major design issue that could be improved … Read more
The Arizona Science Lab presents information on types of beams used for building bridges. They show the huge difference in resistance to bending between a flat beam and an I Beam. Then different types of truss designs are shown and explained. Afterwords the students are given supplies to build their own bridges, and this video … Read more
Hello! As promised, here are some pics of our bridge we entered into Jackson State Univ’s Mathematics & Engineering Fair (Jackson, MS). We were amongst what appeared to be a lot of other folks that were just as clueless as us about bridge building! This is our first effort, so a win is a win, … Read more