How long ago is 2^x nanoseconds?

• 2¹⁹ ns ago: One millisecond ago
• 2³⁰ ns ago: One second ago
• 2⁴⁰ ns ago: 18 minutes ago
• 2⁴⁷ ns ago: Two days ago
• 2⁵⁰ ns ago: Two weeks ago
• 2⁵⁵ ns ago: Last year
• 2⁶⁰ ns ago: Kurt Cobain was still alive
• 2⁶⁴ ns ago: Leonardo da Vinci was born
• 2⁶⁶ ns ago: Julius Caesar was killed
• 2⁷² ns ago: The last glacial period began
• 2⁸⁰ ns ago: The dinosaurs went extinct
• 2⁸⁷ ns ago: The earth was formed
• 2⁸⁹ ns ago: The big bang

↩   December 15, 2012