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A $150 price drop on the best MacBook on the market leads the charge, but this month has a portable PC for everybody at a nice discount. After starting my career at PCMag as an intern more than a ...

Dell, HP, and Lenovo also do this, but you should always double-check exactly what you're getting and whether you can buy it for less at other retailers. Brands like Lenovo adjust their prices ...

Brownian diffusion is a ubiquitous mechanism of transport for ions, molecules and submicrometre particles. It can limit the rate of chemical reactions as well as determine the efficiency of ...