Newsom is touring Southern states. It's exposing some hurdles in his path to 2028.

Gavin Newsom just did a swing through Southern states as part of a national tour — and no, it’s not part of a presidential ...
The Debrief

Scientists Build a Zero-Gravity Microscope and Successfully Test it on the ‘Vomit Comet’

Scientists from Newcastle University in the United Kingdom have built a zero-gravity microscope capable of operating in zero- and microgravity environments, which have proven challenging for ...
Nature

Test-plates for Microscopes and Microscopic Definition

IN NATURE of September 1 last (vol. 108, p. 10) I suggested that dry films of some of the aniline colours might prove suitable surfaces on which to rule the very fine lines required for test-plates.