What If

what ifWhat If?, Randall Munroe

If you’re on the internet at all, I assume you’re familiar with national treasure Randall Munroe, the creator of xkcd.  It is one of the most consistently excellent sites on all of the global internets.  Before creating a job for himself being professionally funny online, Munroe worked as a robotocist for NASA, so he’s also pretty smart and seems to know some things about science and math.  That’s where this book comes in.

This is one of the most useful reference books a person can own.  There are numerous books, encyclopedias, websites and people that can give you the facts you might need about the Revolutionary War, conversion from ounces to litres, information about Newton’s Laws, or any other number of things.  But I’m fairly certain this is the only book that will tell you how quickly you could drain all of the earth’s oceans if there was a drain placed at the deepest spot, and also what Mars would look like if the glass_peopledrain was a portal that placed all of the water over the Curiosity rover.  Or what would happen if a glass of water became literally half empty.  Or, my favorite, what would happen if you built a wall out of the periodic table of the elements.

(Short answer:

  • You could stack the first two rows without much trouble.
  • The third row would burn you with fire.
  • The fourth row would kill you with toxic smoke.
  • The fifth row would do all that stuff PLUS give you a mild dose of radiation.
  • The sixth row would explode violently, destroying the building in a cloud of radioactive, poisonous fire and dust.
  • Do not build the seventh row.)

This book is also probably the best argument for why it is important to learn advanced math.  No one believes their teachers when they say they’ll use this in the future, but calculus, trigonometry, and differential equations do have real world applications.  And if you don’t learn them you have to write in to an internet cartoonist to find out if it’s possible to build a jetpack using machine guns, instead of being able to run the numbers yourself.

So, if you don’t have the knowledge yourself to find out whether you could drop a steak from high enough that would be cooked enough from heat during re-entry to eat, or the time to figure it out, I suggest you get this book.  I don’t know where else you can find that absolutely necessary information.

 

 

 

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