Pew Research Center conducted this study to better understand teens’ use of digital devices, social media and other online platforms. The Center conducted an online survey of 1,453 U.S. teens from ...
Abstract: Magnetic springs using permanent magnets (PMs) have shown advantages in various fields. For instance, they are integrated into precision positioning actuators for passive gravity ...
Abstract: With the development of satellite communications, military radar and other fields, the demand for terahertz (0.1-10THz) tunable devices is growing, of which the switches are the most basic ...
Energy cost differences between marathon runners and soccer players: Constant versus shuttle running
Purpose: In the last decades, the energy cost assessment provided new insight on shuttle or constant running as training modalities. No study, though, quantified the benefit of constant/shuttle ...
This research focuses on the analysis of the model and performance of lightweight metastructures encompassing a distributed array of internal homogenous oscillators, integrated into the host structure ...
The Earth has warmed by 1.2 ± 0.1 °C since the preindustrial era. The most common metric to measure the ongoing global warming is surface air temperature since it has long and reliable observational ...
Holger Müller is in the Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA. However, the recoil energy is tiny and therefore hard to measure. Laser-based ...
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