compressed air

Replace windshield wipers with compressed air jets which could also be heated for deicing.
Ray 11/24/2013
Perhaps what is missing here is a layer of air between the oncoming airstream and the windshield. However the amount of air to provide this layer might be an excessive one and only available with a large compressor. Perhaps even then this could be done with a large deflector. It has always been an interesting idea for me.
art h 06/24/2013
When driving down the road in the rain at any speed the wind going over the windshield does not clear with wind blowing on it. I see no way that compressed air will have any effect on a rainy day.