Build a bridge over two books/points, using only newspaper/old paper. You're not allowed to use glue, scissors, pins, rubber bands or anything else to secure the bridge. Which design works the best?
Answers
Answer:A bridge must support its own weight (the dead load) as well as the weight of anything placed on it, like the pennies (the live load). Your paper bridge must span 20 centimeters (about 8 in.).You can stiffen paper by folding or rolling it into a column. But to support the most weight, you have to do one more thing. You have to turn the column so it's perpendicular to the pressure.Classical, medieval drawbridges worked via the simple principle of counterweight, with large wood and metal bridges pivoted via a series of balancing weights in a castle's gatehouse. ... By employing counterweights, incredibly heavy bridges could be operated by just a few people – useful when under attackClassical, medieval drawbridges worked via the simple principle of counterweight, with large wood and metal bridges pivoted via a series of balancing weights in a castle's gatehouse. ... By employing counterweights, incredibly heavy bridges could be operated by just a few people – useful when under attack
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