Why didn’t I think of these?

Really Magazine, that splendid repository of significant, surprising, extraordinary or merely amusing news items, has brought to the attention of the world two patents granted by the US Patent Office on August 29th and October 3rd respectively. They are for:
A towel with a hole in it
and
A floating city surrounded by giant windmills and equipped with an explosion-proof stainless and special alloy composite curtain that may be deployed during an emergency.

If you want to know why these inventions were accepted as patentable, Martin Gardiner explains here, where he also provides links to the patent specifications, with fetching illustrations.

Most lists of favourite websites are a total waste of space. Martin has the best I’ve seen: not a dud among them (except the one he describes as “possibly Google's least informative page”).