There was a great episode of NOVA on pbs last night talking indepth about eclipses and their frequency. The gist wad that they have known how to predict them to within 4 minutes and they occur about every 7 years
People tweeting stuff. We allow tweets from anyone.
RULES:
There was a great episode of NOVA on pbs last night talking indepth about eclipses and their frequency. The gist wad that they have known how to predict them to within 4 minutes and they occur about every 7 years