![TED Talks Daily (HD video) show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/773/small/tedtalks-hd.png)
Summary: How do you build a wheelchair ready to blaze through mud and sand, all for under $200? MIT engineer Amos Winter guides us through the mechanics of an all-terrain wheelchair that’s cheap and easy to build -- for true accessibility -- and gives us some lessons he learned along the road.