The Bjerrum length (after Danish chemist Niels Bjerrum 1879–1958
Niels Bohr | Niels-Henning Ørsted Pedersen | Niels Bohr Institute | Niels Juel | Niels Ferguson | Niels Henrik Abel | Niels Shoe Meulman | Niels Helveg Petersen | Niels Frederiksen | Niels Ebbesen | Niels Ditlev Riegels | Niels Viggo Bentzon | Niels Turin Nielsen | Niels "the Terminator" Feijen | Niels Simonsen Glostrup | Niels Rosing-Schow | Niels Peter Lemche | Niels Kristian Nielsen | Niels Kristian Iversen | Niels Feijen | Niels Erik Nielsen | Niels Christian Ditleff | Niels Bjerrum | Niels Bätge | Niels Arestrup | Niels Albert | Niels | Jannik Petersen Bjerrum | Frederick Niels Larsen |