Physical Reference Data (from NIST)
Physical Reference Data (from NIST)
The Physical Reference Data web site contains links to all of the online databases maintained by the Physical Measurement Laboratory. The databases include data on fundamental physical constants, atomic and molecular spectroscopy, ionization cross sections, absorption of x-rays and gamma rays, radiation dosimetry, half-life measurements, atomic weights, and condensed matter physics.
Webbplatsen Physical Reference Data innehåller länkar till flera olika databaser från Physical Measurement Laboratory. Databaserna innehåller data kring ett flertal områden inom fysik.