surface charges as high as 5 E.S.U./cm. 2 are retained for several years 1. The materials generally used for the preparation of these so-called ‘electrets’ are mixtures of carnauba wax and ...

THE property of water-insoluble amphipathic molecules to alter the electrokinetic charge of lipids has been exploited by Bangham and Dawson 1 in elucidating the charge requirements of certain ...

Microsoft has prepared fresh firmware for the Surface Laptop 4 with Intel processors. The August 2023 update brings security vulnerability patches and a fix for issues when charging over USB-C.

Plug the USB-C end of the cable into the charging base. Plug the other end of the cable into a USB-A power source, like your Surface. Place your pen in the charging base. Wait for a moment ...