Quote:
Originally Posted by jjjnettie
It's relation to astronomy is........  |
From what I can gather from the blurb, the context is in relation to the previous giants of "crawler" machines, those that transported the Apollo and Space Shuttle craft.
The image may be "a few years old", but the technology behind the NASA crawlers is much older. And the size of the newer excavators dwarf the NASA craft too.
I went on an excursion to an open cut coal mine in the Hunter Valley some 20 years ago. The excavators there are electic powered. The engineer that conducted the tour said that that when the machine was loaded and in motion, the meters at the power plant registered this as significant fluctuations within their readings. ZZAP!