I HAVE read with great interest the letters of Drs. Stiles, Thomson and Pirenne in Nature of February 10, in which among other things König's early work is mentioned. Some experiments to be described ...

Solar cells don't at first glance have any relation to a tiny structure in the eye that makes our central vision sharp, but that tiny structure – called the fovea centralis – may be the key to a huge ...

On April 8, 2024, a once-in-a-lifetime total solar eclipse kept the eyes of millions of Quebecers riveted on the sky. But the experience left at least two among them—a 34-year-old man and a ...

MR. E. N. WILLMER 1 in his communication in Nature of May 11, 1944, and in his recent address to the Colour Group of the Physical Society (November 22), directed attention to the defective colour ...