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 ...

A description of a four-phase RC oscillator of a sinusoidal and rectangular shape is given. A triangular-shaped signal is obtained by the counterphase addition of half-waves of sinusoidal signals ...