by Wm. Robert Johnston
last updated 6 August 2002
One paper I am now reading had concluded that tumbleweed at the LIGO site in Washington could pose a significant problem for future gravitational wave measurements. The gravitational pull of a tumbleweed blown into the side of the building could overwhelm any gravitational waves that might be present.
Friday was interesting. I went in the afternoon to help place the seismometers in the bunkers, 2.9 km down the Y-arm (but to get there you have to go 4 km to the end, then back up the other side). These 18 bunkers are in a field part mud, part standing water, weeds up to 1 meter (3 ft) tall, some snakes and black widow spiders... Ground too muddy for the all-terrain Army forklift used on site... We ended up carrying the equipment on foot the 50-200 meter (or yard) distances to get to each bunker. What fun!
This past weekend some of us went to a movie. This weekend there is talk of going to Clark Creek State Park, just across the border in Mississippi, for hiking.
Image credit: Wm. Robert Johnston, © 2002
© 2002 by Wm. Robert Johnston.
Last modified 6 August 2002.
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