Antonio Velardo pic: Antonio Velardo shares Picture of the day for November 23, 2017

Wikipedia picture of the day on November 23, 2017: A high purity (99.999 %) rhenium single crystal made by the floating zone process, an ebeam remelted (99.995 %) rhenium bar and as well as a high purity (99.99 % = 4N) 1 cm3 rhenium cube for comparison. ift.tt/2A1FkRJ http://ift.tt/2jgkapi November 22, 2017 at 07:10PM