Archive for June, 2007

Element Explorer

Friday, June 29th, 2007


Think the periodic table is just a boring collection of numbers? I suppose the one in your chemistry textbook might be. But it doesn’t need to be this way. Each element is interesting on its own, with a unique appearance, a history of how it was discovered, and different practical uses. Together as a collection, the elements show all kinds of interesting patterns that just beg to be explored.

Element Explorer is my attempt at making the periodic table an interesting toy instead of a dry, dusty pile of numbers. You can click on any element to view more details about it. There are links to take you to Wikipedia or the Wooden Periodic Table to see pictures and read about the element.

If you’ve got Javascript enabled, the menu in the lower left lets you color the elements differently to highlight different patterns. Coloring by mass, for example, shows that atomic mass increases smoothly with atomic number (as expected). Color by discovery date and you’ll notice that Technitium (43) was discovered almost 100 years after its neighbors. Scientists knew it must exist from the gap in the table, but it proved elusive because, unlike its neighbors, it isn’t stable.

Now go have fun exploring.

Some technical details: The raw data (atomic weights, date of discovery, etc.) was originally retrieved from Wikipedia. I then used Python, JSON, and Django templates to generate the HTML. The zooming & other visual effects are powered by a mixture of Prototype and Scriptaculous.

Street View

Sunday, June 3rd, 2007

Without further introduction, 8 conceivably useful applications of Google’s new Street View:

  1. Find parking before you get in the car.
  2. Find a store’s hours
  3. Check if you can pay by credit card (courtesy of Damon Kohler).
  4. Look up a phone number
  5. Thinking of moving? Check out the neighborhood. Maybe you’ll find it a bit out of your price range.
  6. Can I sit while I wait for the bus?
  7. Will I be out of the rain while I wait for my bus?
  8. Should I bring loose change for the parking meter?

(Ok, so some of those are pushing it a bit. If I’m optimistic, I can see how this could become very useful, instead of just being used to spy on housecats.)