To some they look like bow-legged cowboys. To others, swaggering pirates. Either way, the two-legged molecules known as motor proteins are what get the job of living done in most of your cells.
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Modern cosmology fuses the concepts of space and time into a thing, called a four-dimensional continuum. Albert Einstein predicted, and recently scientists have claimed to observe ripples in the so-called fabric of space-time. But is […]