Megapixel, megaschmixel -- we're more impressed when camera tech goes the opposite way and shrinks down. A happy byproduct of his neural mapping research, Patrick Gill and his Cornell University team have engineered a cam so microscopic it could fit on the head of a pin. The lensless creation is only one 100th of a millimeter thick, looks more like a miniature CD and doesn't require any budget-breaking parts. Named after the Fourier transform that ins
