After four centuries of advances, astronomers now capture the Sun’s swirling, dynamic features in stunning detail.

Thirty years ago, scientists were thrilled just to detect exoplanets. Then they learned to measure their temperatures, wind speeds, and chemical makeup. Now, for the first time ever, astrophysicists ...

Abstract: Controlling the charge, rather than the voltage, on a parallel-plate, electrostatic actuator theoretically permits stable operation for all deflections. Practically, we show that, using ...

A lot of claims have been made about the purported benefits of adding chopped carbon fiber to FDM filaments, but how many of these claims are actually true? In the case of PLA at least, the [I built a ...

Abstract: A solution to enhance the axial ratio (AR) bandwidth of a circularly polarized (CP) planar transmitarray using 3-D printed parallel dielectric plate unit cells is presented here. Unlike the ...

Introduction The stepped-wedge cluster randomised trial (SW-CRT) is a complex design, for which many decisions about key design parameters must be made during the planning. These include the number of ...