Fiebig, Manfred
Article History
First Online: 18 June 2018
Change Date: 9 July 2018
Change Type: Correction
Change Details: In the version of this News & Views originally published, the placement of the white circle in Fig. 1 was in the wrong position; it should have been over the six-domain vortex. This has now been corrected; see the correction notice for details.