When it was finally time to board, we got on the train to find out that we’d been put in business class. This was a turn up for the book, reclining seats and room to stretch out a little.
The physics of elementary particles in the 20th century was distinguished by the observation of particles whose existence had been predicted by theorists sometimes decades earlier.
Cyclic groups are the simplest groups imaginable.
In Wikipedia this kind of activities is performed by members who assume distinct social roles, for instance the quality of the articles is addressed by reviewers and rollbackers, and the users' management is handled by checkusers and account creators.
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