This "magnetic pendulum" uses a motor to set it into motion at a specific speed and angle. Magnets within the pendulum's end and the floor repel one another as the pendulum swings, creating a complex ...

The pendulum at the museum is attached to a 61-foot-long cable. It typically swings as the Earth rotates, knocking down pegs, until it suddenly stopped this month. The Houston Museum of Natural ...

Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100080, P. R. China Department of Mathematics, Hunan Normal University, Hunan, Changsha 410081, P. R. China Author for ...

Of all the high-end amplifier designers during the last half-century of hi-fi, Dan D’Agostino is one of the most influential and admired. After spending 29 years as the CEO of audio company Krell, ...

Supply chains have had a tumultuous few years, beginning in 2020, when COVID-19 upended legacy global supply chains. More recently, the “TikTok-ification” of retail has companies like Shein and Temu ...

Department of Mathematics, Hunan Normal University, Hunan, Changsha 410081, P. R. China School of Mathematics and Computational Science, Hunan University of Science and Technology, Hunan, Xiangtan ...