Google and math

Last weekend I was searching for information on the new Boeing 747 - 8 (it's the newer longer, better version of the 747). I went to Google.com and typed in 747-8. Guess what happened? I guess I ought to have typed in "Boeing 747-8" because the search came back with an answer from Google Calculator! YEP. Simply Google 747-8 or whatever math question you have and Google will return the answer.