Scientists mapping the human body at the cellular level keep running into the same surprise: beneath the apparent chaos of tissues and organs, there is a hidden order that looks a lot like pure ...

The ‘mental number line’ theory doesn’t appear to hold up vertically. In A Nutshell When people viewed vertical lines filled ...

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Abstract: This article embarks on an analytical exploration of the degradation mechanisms affecting the proton exchange membrane (PEM) fuel cell with 3.2 kW capacity, pivotal in hybrid systems of ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...