Whiteboards seem like genius — easy-to-read, no-dust versions of classroom chalkboards. Except that they never really, really erase. The only thing that separates a dry-erase marker from a permanent marker is a touch of silicone polymer. It makes the ink in the dry-erase slippery enough to wipe off the porcelain or white melamine coating on the board. Unfortunately, to be light enough to mount, those whiteboards are pretty thin. Which means the coating wears out — every time you write on one, the surface degrades, forming microscopic craters that grab ink more tightly than any polymer could hope to avoid. Eventually, the whole thing develops a gray residue. That brainstorm session you left up there for three months? It moves into those tiny dimples permanently. Hope they were good ideas.Other things they mention that relate in some way to our class are DVD sound, radio, ticket purchasing, and web video.
Meanwhile, on the internet...here's an article about the new net neutrality proposal before Congress that I mentioned.
And here's something new: Comcast, one of those big, powerful cable companies, has launched a new site called Fancast where you can get info about TV shows and movies and watch them online. I haven't played around with it too much but it looks easy to use. When I tried to watch a TV episode it played smoothly. Thanks, Comcast!
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