Cartalk Puzzler: An Interesting Series of Numbers
September 17, 2011, 12:00 amWhen my kids were in school, they, like all the other kids I guess, had to learn their numbers. So each day for homework, they would bring home a list of numbers on a piece of paper, and they were asked to write out the letters that spelled that number, right next to...
Drag Race #wcydwt
September 14, 2011, 12:00 amAct 1
What questions do you have?
Act 2
- Talk about why the highest horsepower might not be that fast (10,000 horsepower vehicle that you could beat with a Toyota Prius).
- Ask what other things are important for going fast. Is the lightest vehicle alwa...
1st Day for Intro to Programming: Lightbot
September 9, 2011, 12:00 amI forget who introduced the Light-bot game to me, but thank you.
I got the link from Hélène Martin. Much thanks!
First day went excellent in Introduction to Programming class. “We get to play a game?”
Introduction to loops, functions (methods), and debugging all on the first day, wit...
Cartalk Puzzler: License Plate
September 3, 2011, 12:00 amDeep Tanning
RAY: You’re driving past a high school parking lot on a fine spring afternoon in Our Fair City, watching the kids try to do wheelies with their parents’ station wagons. You happen to notice a car with an interesting license plate. It reads TAN 270. What ma...
Responses to NYT article on “How to Fix Our Math Education”
September 2, 2011, 12:00 amOriginal on How to Fix Our Math Education article is found here.
Some great responses were mailed in.
Sol Garfunkel and David Mumford are right to observe that the everyday usefulness of our high school math curriculum leaves much to be desired. But since when did practicality become the...
Mandelbrot
September 1, 2011, 12:00 amPassword Strength
August 30, 2011, 12:00 am
To add to this excellent xkcd comic, the following site also exists : Password Haystacks.
Which is a stronger password?
T@+t0O
or
dudewhatdoesmytattoosay
(Click to find out, I’ll wait).
Pretty sweet indeed. What a difference.
Anyways, the reason I’m linking this stuff is th...
Hurricane Irene – Logarithmic Spiral?
August 28, 2011, 12:00 amDoes Hurricane Irene fit a logarithmic spiral?
I made a Geogebra applet to see if it does. Enjoy.
Parametric equation:
Transport $12 billion of gold #anyqs
August 24, 2011, 12:00 amFrom Bloomberg:
Venezuelan President Hugo Chavez ordered the central bank to repatriate $11 billion of gold reserves held in developed nations’ institutions such as the Bank of England as prices for the metal rise to a record.
Venezuela, which holds 211 tons of its 365 tons of gold res...
Python Challenge
August 24, 2011, 12:00 am
Python Challenge is a “programming riddle” on the internet.
What is the Python Challenge?
The Python Challenge is a set of riddles that require a little bit of Python programming to be solved. The solutions are entered by changing the address of the page (URL). You get used to the idea pre...