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" ... Recently, researchers at SLAC have invented a way to produce bursts of x-rays that can see the movement of electrons on timescales of the order of billionths of a billionth of a second (attoseconds). This process is called X-ray laser-enhanced attosecond pulse generation or XLEAP for short. With this process, chemical and crucial biological reactions can be probed on incredibly short timescales, allowing scientists to find out even more about them. ... "
" ... The chip inside Apple’s new iPhone has a transistor etched into it every 5 nanometers. That’s five billionths of a meter, or 1,000X smaller than a red blood cell. ... "
" ... The microscopes you may have used in your high school science class use light to probe objects. The finest detail, or maximum resolution, that can be observed is the same as half the wavelength of light being used, so in visible light between 400 nm (nanometers - billionths of a meter) and 700 nm in wavelength, we can comfortably observe internal plant cell structures as small as 0.2 μm (micrometers - millionths of a meter) or 200 nm, but lose the detail of any smaller structures. ... "