(Henry Spencer) writes:

For Hubble, there were *three* null correctors, and two out of three said
that the mirror was shaped incorrectly (although unfortunately the most
precise of the three was the one that said it was okay). Management
*explicitly* decided that this strange discrepancy would not be
investigated, because the project was already over budget and behind
schedule.

I've run into many, many people that don't understand the difference
between accuracy and precision, which is something I distinctly
remember learning in high school. It makes you wonder if the Hubble
management team understood the difference.

Jeff
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