Tuesday, October 11, 2011
sunfoundation:

Google Earth downloaded more than one billion times

How large is one billion? One billion hours ago modern humans were  living in the Stone Age. One billion minutes ago, the Roman Empire was  flourishing. If you traveled from Earth to the Moon three times, your  journey would measure one billion meters.

sunfoundation:

Google Earth downloaded more than one billion times

How large is one billion? One billion hours ago modern humans were living in the Stone Age. One billion minutes ago, the Roman Empire was flourishing. If you traveled from Earth to the Moon three times, your journey would measure one billion meters.

Notes

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