Month: November 2009

Lego Climbing Robot

Way back in January I watched a Google tech talk video Lego Engineering: from kindergarten to college. The talk stresses the importance of teaching engineering in schools. A few days later at breakfast I started talking with my oldest daughter, Alexandria, about engineering and what it is that engineers do. I said that engineers use […]

CSS Sprites vs. High Contrast Mode

Using positioned background images (a.k.a CSS Sprites) has a number of benefits: Performance. One of the performance recommendations made by Yahoo’s performance team is to reduce HTTP requests. One way to do this is using the CSS Sprite technique — combining many images into a single background image. Skin-ability. With the img tag the image […]