Researchers at East China Normal University have created a mid-infra-red camera with a deep depth of field by creating a virtual pin-hole in an optically-active crystal. The lens-free system not only ...

THE United States liner Manhattan has recently been fitted with a special look-out camera intended for an investigation of fog penetration with infra-red sensitive materials. Mechanism for the ...

IT is only within the past two years that the general public has become familiar with infrared photography. Yet Abney, so long ago as 18801, photographed the solar spectrum as far as 9867 A. It may ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Sustainable forest management plays a central role in our future, which in turn requires the training and development of forestry professionals. That's where the CFA comes in. We work in all corners ...