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Comment Re:Oh really? (Score 1) 97

Even tho it's early in the century, it might well be the longest eclipse of the century. I imagine that the calculations to predict eclipses and their duration would be relatively straightforward by modern standards. You probably wouldn't even need to take relativity into account.

They're posted here:
http://eclipse.gsfc.nasa.gov/eclipse.html

Comment Re:Self Cleaning (Score 1) 388

Not necessarily.

I can imagine a thin film of black carbon absorbing the laser pulse and converting it into heat right on the lens. Iâ(TM)m not sure what theyâ(TM)re made of, but I do hope the research includes the possibility of melting. Spark plugs are made of ceramic instead of glass for a reason as it has superior heat and electrical insulation properties.

The laser plugs in TFA are modified sparkplugs. They just removed the core, cut off the ground electrode, and put lenses in place.

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