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In A Man of Misconceptions: The Life of an Eccentric in an Age of Change, John Glassie writes of 17th-century Jesuit priest and scientist Athanasius Kircher, a renaissance man who studied magnetism, Mount Vesuvius, even the blood of plague victims. The only problem? His theories were often wrong.

Did you know that the human overbite may have evolved after people began using forks and knives? In Consider the Fork, author Bee Wilson traces how kitchen tools--from knives to pots to gas stoves--have changed over time, and how they have influenced what, and how, we eat.

Transcript

IRA FLATOW, HOST:

With a gauge at the tricky section of the Mississippi River near Thebes, Ill., already registering a remarkably low water level — and projections that it will fall further in coming days and weeks — trade groups are warning that barge traffic through that part of the river may have to halt completely as soon as next week.

Got milk? Ancient European farmers who made cheese thousands of years ago certainly had it. But at that time, they lacked a genetic mutation that would have allowed them to digest raw milk's dominant sugar, lactose, after childhood.

Today, however, 35 percent of the global population — mostly people with European ancestry — can digest lactose in adulthood without a hitch.

Yes, President Obama and congressional leaders are scheduled to meet at 3 p.m. ET to discuss how to avoid going over the so-called fiscal cliff of automatic tax increases and spending cuts.

But, no, that isn't inspiring much talk this morning of a breakthrough before the midnight New Year's Eve deadline:

Good morning.

Our early headlines:

-- U.S. Families Stunned By Russia's Ban On Adoptions.

-- Remembering Gen. Schwarzkopf, 'Military Hero Of His Generation'.

The death Thursday of retired Gen. H. Norman Schwarzkopf — "Stormin' Norman" — has prompted many looks at the legacy of the American commander who led coalition forces during Operation Desert Storm in 1991, which pushed Saddam Hussein's Iraqi Army out of Kuwait.

Schwarzkopf was 78. He:

"Secretary of State Hillary Clinton will return to the State Department next week after three weeks of recovery from a stomach virus and a related concussion," Foreign Policy's The Cable blog reports.

Clinton spokesman Philippe Reines tells The Cable that:

Voters in Massachusetts were the latest to weigh in on whether it should be legal for doctors to prescribe drugs to help terminally ill patients end their lives.

The measure was controversial, and on Election Day it fell just short.