Science news articles about 'diameter measurement'

... If Barbara proves to be a double asteroid, this is even more significant: by combining the diameter measurements with the parameters of the orbits, astronomers can then compute the density of these ...

... Cardiology Department, Athens Medical School in Greece, was a randomised trial involving the diameter measurement (dilatation) of the brachial artery of healthy volunteers on three separate occasions ...

... interferometer systems over a range of wavelengths where the diameter measured varies by about 30 percent," Wishnow said ... .4-foot (1.65-meter) diameter mirrors separated by distances that vary from 12 ...

... a side. Single-wall carbon nanotubes are molecular tubes composed of a rolled-up hexagonal mesh of carbon atoms. With diameters measuring less than 2 nm and yet with lengths of ...