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South Korea's Simple Way to Indicate Vacant Parking Lots · HackerTrans

South Korea's Simple Way to Indicate Vacant Parking Lots(youtube.com)

4 points·by kschua·13 anni fa·2 comments

South Korea's Simple Way to Indicate Vacant Parking Lots

http://www.youtube.com/watch?v=nw9g9OVHdJI

2 comments

atburrow·13 anni fa

Save oil by using another precious resource: helium.

QuantumDoja·13 anni fa

I like the simplicity of it.