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Tower. >> another person trying to escape from the bridge that day is professor bert farquharson. >> professor bert farquharson was an authority on bridge structures. so when clark eldridge and lacey murrow became concerned about how much this bridge might move, they hired bert farquharson to conduct some studies. >> as part of his study, dr. farquharson sets up film cameras a few weeks after the bridge opens to capture its movements. several weeks later the same cameras capture the drama of the bridge's final movements as they unfold. >> the phenomenal thing is we're watching steel and concre...

Escape from the bridge that day is professor bert farquharson. >> professor bert farquharson was a professor of engineering at the university of washington. and he was an authority on bridge structures. so when eldridge and lacey murrow became concerned about how much this bridge might move, they hired bert to conduct some studies. >> as part of his study, dr. farquharson sets up film cameras a few weeks after the bridge opens to records its movement. several weeks later the same cameras capture the drama of the bridge's final movements as they unfold. >> the phenomenal thing is we're watching...

Is professor bert farquharson. >> professor bert farquharson was an authority on bridge structures. so when eldridge and lacey murrow became concerned about how much this bridge might move, they hired bert to conduct some studies. >> as part of his study, dr. farquharson sets up film cameras a few weeks after the bridge opens to capture its movements. several weeks later the same cameras capture the drama of the bridge's final movements as they unfold. >> the phenomenal thing is we're watching steel and concrete twisting 20 times a minute. as the twisting increased, light poles began to dance ...

Escape from the bridge that day is professor bert farquharson. >> professor bert farquharson was a professor of engineering at the university of washington. and he was an authority on bridge structures. so when eldridge and lacey murrow at the washington state highway department became concerned about how much this bridge might move, they hired bert to conduct some studies. >> as part of his study, dr. farquharson sets up film cameras a few weeks after the bridge opens to capture its movements. several weeks later the same cameras capture the drama of the bridge's final movements as they unfol...

Is professor bert farquharson. >> the professor was a professor of engineering at the university of washington. he was an authority on bridge structures. so when eldridge and lacey murrow game concerned about how much this bridge might move, they hired bert to conduct some studies. >> as part of his study, dr. farquharson sets up film cameras a few weeks after the bridge opens to record its movements. several weeks later the same cameras capture the drama of the movements as they unfold. >> the phenomenal thing is we're watching steel and concrete half a mile long, twisting 20 times a minute. ...