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jCross | all galleries >> What I Did Today >> What I Did Today 2007 > January 24, 2007
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25-JAN-2007 John Cross Photography

January 24, 2007

070124_001AP.jpg

As my current day job (really afternoon and evenings) I tutor high school and college students in math and science. I was working a problem recently and came up with an answer that didn't agree with the book. After checking my calculations several times, I decided to send it off to my sons Richard and David. Within an hour they had worked the problem and emailed the results back to me. They agreed with me. The interesting thing is that the book answer results from a major rookie error in the force diagram of the roller coaster car. Interesting. I find errors every once in a while in the text books. For the most part; however, they are correct. Now you are wondering why I didn't send it to Robert as well. The answer is quite simple: I don't know why. How's that for an answer?


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Dave Beedon15-Apr-2007 05:58
Part a. is a trick question. No car has a mass, as all cars are amoral. Only people (mostly Catholics) have a mass, and most masses are held on Sundays.
jCross12-Feb-2007 11:42
Let me see, "For the most part the errors are correct" Somebody has been playing the sand far too much lately!
John
Dave Beedon12-Feb-2007 07:38
I read your text as "For the most part they [the errors] are correct." Is this Texas thinking?
Wingy 26-Jan-2007 19:07
New Orleans Rock "Better than Ezra" did a great song about Ramen Noodles
jCross26-Jan-2007 04:56
Yes, he is. That is because he bought an engagement ring and is now shoeless and living on Ramen soup and peanut butter sandwiches. Life is so tough for him that he is now drinking Rebel Yell, just like me. Retirement lowers your standards.
Guest 26-Jan-2007 00:15
isn't he the son who can't afford shoes??
your forgotten son Robert 25-Jan-2007 23:51
Thats fine dad! I didnt want to help nEwaY!!