Two such quasi-particles had been seen before, but a team reporting in Nature has now confirmed a third: the orbiton.

A grandfriend is someone from an older generation. These wise, grandparent-aged friends can help make life a little more fun—and impart wisdom you can't get anywhere else. There may be potential grandfriends in your community in assisted-living facilities.

What most rankles me about the term is how casually it is being applied to schools—temples of learning—and especially to children.

The boundary between Tibet and China settled by the Manchu Emperor and the Tibetans in 1727 and lasting down to 1910 ran from the Mekong just north of A-t'un-tzu, crossed northward into the Chin-sha Chiang valley and followed the water divide between the Chin-sha and the upper Mekong sources to the Kokonor Territory.