Biologically extending human vision into the near-infrared: Initial success
What an interesting experiment. Could there be some basis, after all, to the urban legend that eating carrots improves night vision? Carotenes are "partly metabolized into Vitamin A" [1], but this experiment is skipping the precursors and going straight for what I assume are large and exclusive doses of Vitamin A. Can it really be that no one has tried this before?<p>Related and probably equally silly idea: I've always wanted a pair of sunglasses that could tune in to different EM spectra. How far are we from that? Night vision goggles are bulky because they need external power to do the frequency shifting, right?<p>[1] <a href="http://en.wikipedia.org/wiki/Carrot#Nutrition" rel="nofollow">http://en.wikipedia.org/wiki/Carrot#Nutrition</a>