The optical rotatum's logarithmic spiral follows a pattern found often in nature, including nautilus shells. Credit: Capasso Lab / Harvard SEAS The optical rotatum's logarithmic spiral follows a ...

Nautilus Shells are most easily found on the beach by foraging through the sand, which is probably where most people would think to look for them. However, if you look during the summer, when you ...

Stebbins, Theodore E., Jr., "The life and work of Martin Johnson Heade: a critical analysis and catalogue raisonne," New Haven: Yale University Press, 2000, no. 397 ...

Pushing the limits of structured light, physicists report a new type of optical vortex beam that not only twists as it travels but also changes in different parts at different rates to create unique ...