An elegant modification doubles the range of low-noise 'white lasers' in a single fiber

Supercontinuum light sources—often called "white lasers" because they emit a broad, continuous rainbow of colors—are ...
Scientific American

Mathematicians make a breakthrough on Gauss’s riddle, unsolved for 200 years

A solution to part of the Cohen-Lenstra conjecture helps resolve a long-standing mystery about quadratic forms ...
24/7 Wall St

VGT’s 0.09% Fee Hides a Bigger Problem: Overlap Costs That Could Add Up to Tens of Thousands

VGT's 0.09% fee is negligible; its five-year return of 148% trails XLK by nearly 20 points, making underperformance the real hidden cost. XLK returned 167% and FTEC returned 151% over five years, both ...