Yet another journal? And what is the windmill about? Those are two questions that we heard a lot lately. Yes, another journal, or rather, a different journal, called Mechanical Sciences (MS). The main difference is that the journal is open access, of which there are not many in the field of mechanical sciences. Grant agencies more and more demand part of the research output to be in open access form, the reasoning being that the knowledge was generated with tax money so it should be available to all tax payers, including small and medium sized enterprises. In knowledge economies this makes good sense. But there is more.