The bridge's collapse had a lasting effect on science and engineering. 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. The collapse boosted research into bridge aerodynamics-aeroelastics, which has influenced the designs of all later long-span bridges.

What happened to the tacoma narrows bridge physics? Let's do a good job answering this.
--
Stream of consciousness: To answer the question, consider the following: The bridge's collapse had a lasting effect on science and engineering. 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.... The answer is the bridge collapsed because normal speed winds produced aeroelastic flutter that matched the bridge 's natural frequency.


"An Irish Airman Foresees His Death" is a poem by Irish poet William Butler Yeats (1865-1939) written in 1918 and first published in the Macmillan edition of The Wild Swans at Coole in 1919. The poem is a soliloquy given by an aviator in the First World War in which the narrator describes the circumstances surrounding his imminent death. The poem is a work that discusses the role of Irish soldiers fighting for the United Kingdom during a time when they were trying to establish independence for Ireland. Wishing to show restraint from publishing political poems during the height of the war, Yeats withheld publication of the poem until after the conflict had ended.

Answer this question based on the passage: who is an irish airman foresees his death about? Let's do a good job answering this.
--
Stream of consciousness: To answer the above question, the relevant sentence is: The poem is a soliloquy given by an aviator in the First World War in which the narrator describes the circumstances surrounding his imminent death.... The answer is an aviator in the First World War.


The Air Jordan IV was re-released in 1999 and retroed in 2000, 2004, 2006, 2008, 2010 -- 2013 and 2015 -- 2017. Recent retroed colorways are the Retro 4 "Legend Blue", "Oreo" in early 2015, and the Retro 4 OG "Cement" that released on February 13, 2016.

Answer this question based on the passage: when did the air jordan retro 4 come out? Let's do a good job answering this.
--

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Stream of consciousness: The relevant information is: The Air Jordan IV was re-released in 1999 and retroed in 2000, 2004, 2006, 2008, 2010 -- 2013 and 2015 -- 2017.... The answer is 2000.