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Boilermakers help prove Einstein theory

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A technician at the Laser Interferometer Gravitational-Wave Observatory installs a mode cleaner tube baffle. Boilermakers built five miles of special tubes for each of the observatory’s twin “detector sites” in Hanford, Wash., and Livingston, La. Scientists there recently announced a major breakthrough proving a key part of Einstein’s general theory of relativity. Caltech/MIT/LIGO Lab

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A simulation shows the merger of two black holes. Multi-university SXS (Simulating eXtreme Spacetimes project)

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Aerial view of the LIGO facility in Livingston, La. LIGO CalTech

Scientists make history by detecting gravitational waves

BOILERMAKER-BUILT STAINLESS steel vacuum tubes at advanced scientific test facilities in Washington and Louisiana have contributed to a major breakthrough in physics and astronomy. On Feb. 11, scientists announced that for the first time ever mankind has detected gravitational waves that were postulated by Albert Einstein 100 years ago as part of his general theory of relativity.

Gravitational waves are evidence of a rippling effect in space-time caused by massive cosmic events such as exploding stars or black hole activity, according to Einstein’s theory. It is thought that the ability to detect and measure those waves could lead to a greater understanding of the origin and operation of the universe.

To prove that gravitational waves exist, twin observatories were built at the end of the 20th century, one in Hanford, Wash., the other in Livingston, La. The work was funded by the National Science Foundation and administered by the California Institute of Technology.

Working for CBI Services, Boilermakers from Local 242 (Spokane, Wash.), 582 (Baton Rouge, La.) and the National Transient Lodge manufactured and built 10 miles of specially-fabricated, close-tolerance, stainless steel tubing to contain laser beams in a vacuum. By monitoring changes in those beams, scientists believed they could detect the presence of gravitational waves. After years of testing and upgrades, they were successful.

The scientific facilities and the program are referred to as LIGO (Laser Interferometer Gravitational-Wave Observatory). More than 1,000 scientists worldwide are engaged in the research.

Additional information about the Boilermakers’ involvement in LIGO can be found in The Reporter archives, on page 3, at www.boilermakers.org/files/reporter/V37N3_0.pdf.

More information about LIGO can be found at www.ligo.caltech.edu.

Tags  Headline News
Locals  NTL, L-242, L-582
Reporter  V55N1
Published on the Web: February 14, 2016

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