Main Page Sitemap

Most viewed

Sir Gawain and the Green Knight
They therefore view the poem as a reflection of a hybrid culture that plays strong cultures off one another to create a new set of cultural rules and traditions. The second and second-to-last parts are..
Read more
Dragon Description
Take THE quiz Subscribe to America's largest dictionary and get thousands more definitions and advanced searchad free! Test Your Vocabulary The Eponym Quiz Which is the best synonym of bowdlerize? The main disadvantage would be their..
Read more

Top news

100 yrs of solitude

Rank Every DC Superhero Movie! Cast, bill Young as Mission Control Flight Director, view All. Interior, technology, fAST charge, level 2, level. Explore technology, gET THE best OF both worlds. There is also a very modern

Read more

Student Uniforms

Contents, history edit, pupils in Turkey, 1905, school girls, Spain, 1951. In 1998, The Journal of Educational Research (The JER) published an article. Abstract: This study attempts to clarify the relationships between public school uniforms and

Read more

Disallowing Capital Punishment in a Society

Capital punishment is not retribution enough. Scenes of howling mobs attacking prison vans containing those accused of murder on their way to and from court, or chanting aggressively outside prisons when an offender is being executed

Read more

Tacoma Narrows Bridge

tacoma Narrows Bridge

called vortex-induced vibration. Transactions of the American Society of Civil Engineers,. The plate girder was abandoned in suspension-bridge design. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7 of the same year. That explanation stuck for decades, even though the Federal Works Administration concluded that resonance was an improbable explanation.

The first studies concluded on November 2, 1940five days before the bridge collapse on November. This produced a "lock-on" event. Engineer Leon Moisseiff who consulted on the Golden Gate Bridge in San Francisco countered with a novel and aesthetically pleasing design that replaced the trusses with 8-foot-high plate girders, lowering the construction costs to 8 million but providing much less resistance to bending and twisting.

2 Several noted bridge engineers, including Joseph. On the morning of November 7, 1940 shortly after.m., a critical event occurred. On hands and knees most of the time, I crawled 500 yards or more to the towers My breath was coming in gasps; my knees were raw and bleeding, my hands bruised and swollen from gripping the concrete curb Toward the last, I risked rising. The true culprit was the twisting motion he had observed both in his early models and on bridge itself the day of the collapse. With only the 8-foot (2.4 m) deep plate girders providing additional depth, the bridge's roadway section was also shallow. University of Washington Special Collections. An entire generation of suspension-bridge designer-engineers forgot the lessons of the 19th century. Map in what different ways is the showing location of the bridge. In many physics textbooks, the event is presented as an example of elementary forced resonance ; the bridge collapsed because normal speed winds produced aeroelastic flutter that matched the bridge's natural frequency. This increased beyond the bridge structure strength to resist.

Tacoma, narrows, bridge - Wikipedia
Tacoma, narrows, bridge (1940) - Wikipedia
Tacoma, narrows, bridge collapses
Tacoma, narrows, bridge
Tacoma, narrows, bridge - TripAdvisor