Vivek Goyal isn’t a professional photographer, but he and his colleagues have developed an intriguing party trick: They can capture the image of an object completely out of sight. They demonstrated ...
THE great utility of spark photography for obtaining time records of quickly-moving objects must he apparent to all who know the experiments of Mr. C. Bell, Prof. Boys, and Lord Rayleigh. By means of ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback