Journal Reference: Toni Annala, Roberto Zamora-Zamora, Mikko Möttönen. Topologically protected vortex knots and links. Communications Physics, 2022; 5 (1) DOI: 10.1038/s42005-022-01071-2 ...

A peculiar protected structure links Viking knots with quantum vortices Mathematical analysis identifies a vortex structure that is impervious to decay Peer-Reviewed Publication Aalto University ...

The Viking 74 had a blazing act to follow in replacing the Viking 72, the fastest ride in the six-decade history of the company. The 72 Convertible ran 45 knots and racked up 75 sales, the number ...