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Energy-efficient traffic lights can't melt snow
- RiderOfGiraffes 17y agohttp://searchyc.com/traffic+light+snow http://searchyc.com/traffic+light+snow http://news.ycombinator.com/item?id=998252 http://news.ycombinator.com/item?id=998252 http://news.ycombinator.com/item?id=994801 http://news.ycombinator.com/item?id=994801 http://news.ycombinator.com/item?id=999978 http://news.ycombinator.com/item?id=999978