The collapse of the Tacoma Narrows Bridge, aka Galloping Gertie, in November of 1940 was pretty spectacular. So spectacular in fact, that people are still talking about it. Here’s your chance to see why.
Cantilever bridges are subject to the two basic forces that are in effect for all bridges. These forces are compression and tension. In a cantilever bridge, with the space between the cantilevered portion spanned by a suspended deck, the compression and tension are straightforward. As you can see in this diagram above, from Merriam-Webster, a […]
Beam bridges are subject to the two basic forces that are in effect for all bridges. These forces are compression and tension. These forces are at work in a beam bridge in an arguably more direct manner than in other bridges. With a beam bridge, with its single deck, the deck itself is subject to […]
Today is a big day in fluid dynamic history! It’s the 216th anniversary of the first successful parachute jump. Andre-Jacques Garnerin (1769-1823) accomplished this feat by going aloft attached to the bottom of a hot air balloon. “I was on the point of cutting the cord that suspended me between heaven and earth… and measured […]
Here they are. The men who take up my brain-space, time, and energy as I complete my book for Springer Verlag, tentatively titled, “Modeling Ships and Space Craft: The Science and Art of Mastering the Oceans and Sky” William Froude who championed and proved the value of scale model testing in the 1870’s. David Watson […]