If one created a road sign with different messages at different polarities, people could tune to their preferred language by adjusting the filter on their end - could be either a polarized windshield or sunglasses as long as the angle is adjustable.

Also could be used to opt out of billboards such as the tampon adverts.
-- prometheus, Oct 04 2001

Could be very benefitical if widely used in this age of "visual data inflation".
-- Aykam, May 15 2002


Wouldn't this only give you two different signs? Any other polarisations would just give a mix of the two....

Although I like the idea of opting out of certain ads...
-- yamahito, May 15 2002



random, halfbakery