Memorizing the following logarithm values is a good place to start
January 20, 2017 9:43 AM Subscribe
Physicist Enrico Fermi famously arrived at the approximate strength of the Trinity test explosion by dropping pieces of paper and watching how far they drifted. Estimates with little or no data are now called Fermi problems, including the famous "How many piano tuners are there in Chicago?" and the Drake equation. Fermi Questions has been an event in the Science Olympiad, a competition in American K-12 schools, where competitors must estimate amounts such as the number of playing cards it would take to equal the mass of Betelgeuse (2x10^34, or twenty decillion). Practice your wild estimates at FermiQuestions.com (tutorial here).
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