angstrom unit การใช้

• Commercially available H-alpha filters for amateur solar observing usually state bandwidths in Angstrom units and are typically 0.7?( 0.07 nm ).
• The ultramictrotome advances the rotating, drum-mounted specimen sample in such small increments ( utilizing the very low thermal expansion coefficient of Invar ) past the stationary diamond knife that sectioning thicknesses of several Angstrom units are possible.
• "The peptide chain below folds into an alpha helix . / an alpha helix is 0.54 nm long ( 5.4 Angstrom units ) for every complete turn, and there are 3.6 amino acid residues per turn of the helix.