Left to right: Peng Peng, Simon Cherry and Chih-Chieh Liu from the University of California, Davis. The spatial resolution of a PET image is mainly determined by the size of the scintillation crystals ...

Scientists have modeled the spikes of the coronavirus particle to unravel how their shape and number may influence the transmissibility of the virus. COVID-19 needs no introduction. Last year, the ...

Flurries of questions about mysterious triangle-shaped snowflakes may soon subside, thanks to new research on snowflake formation. Most snowflakes are hexagons because of the arrangement of hydrogen ...

The triangle is a small instrument made of a metal rod bent into a triangle shape that is open at one corner. While small, its sound is distinct, with multiple overtones and nonharmonic resonance. But ...