IT is generally accepted that the low-angle X-ray diffraction pattern of collagen is unidimensional in the direction of the fibre axis with a fundamental period of 640 A. 1. Variations in the water ...

A DIFFRACTION pattern was obtained by passing a cathode ray beam through a thin sheet of mica, with an apparatus similar to that used by G. P. Thomson in his interesting experiment on the diffraction ...

Google is giving you a free flight – with its new flight simulator app. The tech giant has added a free-to-play flight simulator within its Google Earth map software. What's so special about the ...