Muarry was using an old $ 80 set with a sweet spot the size of a sunflower seed and duct tape for grips. (si.com)
They're in that sweet spot size where they haven't saturated the global markets quite like Johnson & Johnson and Coca - Cola, but they have enough heft in their own right to give strength in the form of earnings quality. (theconservativeincomeinvestor.com)
Rather than using «bulk» geochemistry techniques that measure the average composition of a rock, Mars 2020 is developing new capabilities including X-ray fluorescence and Raman spectroscopy to map the elemental, mineral, and organic composition of rocks at high spatial resolution, with analytical spot sizes about the width of a human hair. (sciencedaily.com)