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Spotlight / Spotlight


It is easy for us to collide with others at the corner of 90 degrees,because we can't see others in time .
Actually ,the problem will be solved easily .We only need a spotlight at the ceiling of the corner . With the spotlight our shadow will before us ,and it will be seen by others who at the corner of other side.And we can also see the shadow of others before we are crashed together.So we can slow down and avoid in time .


Han, Juncheng

Han, Juncheng
zhengzhou, China