Mr. Smarty Pants Knows

An unfueled B-2 costs about the equivalent of twice its weight in gold.

Researchers at Guy's, King's, and St. Thomas's School of Medicine and Dentistry in Great Britain are working with the pharmaceutical company Actinova to produce a mouthwash that prevents cavities for up to three months.

The first potatoes grown in Germany were raised by Frederick the Great at his Monbijou Palace in central Berlin.

David Al-Roy was a 12th-century Baghdad Jew who claimed magical
powers. Two impostors acting in his name urged Baghdad Jews to
assemble on their rooftops so they could fly to Jerusalem. Al-Roy was eventually arrested and executed.

Jayne Mansfield turned down the role of Ginger on Gilligan's Island.

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The above is information which Mr. Smarty Pants read in a book, a magazine, or the newspaper; heard on the radio; saw on television; or overheard at a party.

Got facts? Write to Mr. Smarty Pants at the Chronicle, or e-mail mrpants@auschron.com.