A SciShow Kids viewer wrote us to ask how bridges are strong enough to carry cars and trucks! Jessi and Squeaks can explain -- with blocks!
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SOURCES:
http://www.k5architecture.org/pdf/g2%...
http://www.pbs.org/wgbh/buildingbig/l...
http://www.childrensengineering.com/
http://www.design-technology.org/susp...
http://wyrk.com/busiest-bridge-in-wor...)
Watch video What Makes Bridges So Strong? | Engineering for Kids | STEAM | SciShow Kids online without registration, duration hours minute second in high quality. This video was added by user SciShow Kids 13 May 2015, don't forget to share it with your friends and acquaintances, it has been viewed on our site 2,112,346 once and liked it 7.8 thousand people.