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Comment Re:Tracking travel by car? (Score 1) 338

Don't forget the weather sensors that are very well suited to being placed in the middle of dual carriageway (as long as it has a decent median strip), as it's usually a fairly open, exposed place, ideal for wind speed measurement and accurate temperature/humidity readings. They're solar powered as they're often not near powerlines (and draw so little current it's not worth hooking them up to the mains), and have antennae due to their hourly communication with the mothership, aka weather bureau.

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