Category Archives: Other sites

Entries that refer to other sites I manage or maintain.

Vi Hart out on a limb

Vi Hart, who is probably my favorite mathematician not named Robert Berry, released another wonderful video on 15 September 2015. Vi Hart muses about using a tree diagram to represent digits recursively in infinite progression (regression?). As usual, it’s smart, informative, amusing, and highly recommended. Snag a view from the Web page, Infinite Binary Trees, or from the YouTube page.


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XKCD survey Complete it yourself. Pass it along to others.

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Update ye’ iPhones and iPads

If you haven’t already, now’s the time to do it. Run that update. It’s under “Settings:General” And, until Apple releases a patch for OS X, you shouldn’t use Safari to browse the Web when you’re connecting to the Internet via a public WiFi on your laptop, either.

For the geeks, Adam Langley explained over on Imperial Violet and John Gruber of Daring Fireball opined why he figures NSA conspiracy theories are a bit of a reach.

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Learning from’s Web woes

Over on the NN/g Web site, Jen Cardello has an educational post about how to make the Web page much more readily navigable. It’s heavily focused on usability in the account set-up process, and it’s a beauty.

Alert readers will recognize NN/g (AKA the Nielsen Norman Group) as the public face of Jakob Nielsen, Don Norman, and their colleagues. Jen Cardello is a director for the operation. Learn more at

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Be smart about ocean debris

The US National Oceanic and Atmospheric Administration (NOAA) has a blog about marine debris chocked full of interesting entries. As are many other agencies, NOAA is using social media extensively (e.g., see the Facebook page for its Office of Exploration and Research, the Vimeo shows for its Climate Program Office, and, of course, its own Twitter feed and weather information on its own YouTube channel), but the marine debris blog is a bit unique. It has a voice of its own. It’s focused, friendly, informative, and entertaining. It’s a good use of my tax dollars.

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Skeptic’s Dictionary for Kids!

Bob Carroll announced that he’s completed his latest project, a Skeptic’s Dictionary for Kids, in his weekly newsletter dated 7 August 2011. In the newsletter he explained why he took on this new complement to his massive and long-standing Skeptic’s Dictionary:

I wrote the SD for Kids to promote science and scientific skepticism among young people. I haven’t seen anything else like it on the Web or in print. I was encouraged to do an SD for kids by one big person who thinks kids deserve an SD of their own and by some little people who are already questioning some of their teacher’s beliefs. My 12-year-old consultant took down from her parents’ bookshelf a copy of The Skeptic’s Dictionary to look up “astrology” after her teacher told her class that she believed the stars and planets affect who we are and what happens to us. My consultant thought my writing was a bit obtuse. OK. She said “hard” and “too long.” My 10-year-old consultant wanted more pictures. He especially wanted to see a picture of Area 51, which was mentioned in some movie he saw. He wanted to know more about aliens and UFOs, too.

Mr. Carroll recommends SD for Kids for children ages nine and older and suggest that they start with the about pages and the introduction to scientific reasoning. It’s all at

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Hyperbolic simple dog

Allie Brosh’s simple dog recently went very far outside. Follow her. You’ll get a good look at an adventure, an investigation of a dog’s perspective about the world, and insights into lots of other things, too.

allie brosh drawing

My simple-minded dog recently went on an unplanned adventure. Because the simple dog is so very simple, her adventure was alarming and horrible for everyone involved.

Even in her normal, familiar environment, the simple dog exists in a state of almost constant confusion.

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