"I grew up wanting to fly," says Graham Bowen-Davies. "I guess I just settled for being an engineer."
He's standing on an indoor track in southern Maryland, watching a giant helicopter take flight. At the end of each of its four spindly arms — arms he helped design and build — a giant rotor churns the air. In the cockpit sits the engine: a 0.7-horsepower, 135-pound graduate student named Kyle Gluesenkamp.
Gluesenkamp is pedaling like crazy to keep the rotors spinning and the craft aloft.
From now until November, President Barack Obama and GOP presidential candidate Mitt Romney will emphasize their differences. But the two men's lives actually coincide in a striking number of ways. In this installment of NPR's "Parallel Lives" series, a look at Romney's time at Cranbrook, an all-boys prep school in Michigan.
Cranbrook has been coed since the mid-1980s, its overall diversity is quite evident and the dress code is casual. None of that was true when Mitt Romney, class of 1965, was a student there.
Mary Oliver is a Pulitzer Prize-winning poet whose body of work is largely filled with imagery of the natural world — cats, opossums crossing the street, sunflowers and black oaks in the sunshine. Her most recent collection is entitled A Thousand Mornings.
Later this year, director Peter Jackson's The Hobbit: An Unexpected Journey will reintroduce moviegoers to Middle-Earth, the fictional setting for J.R.R. Tolkien's epic tales.
The high adventure and climactic battles of Tolkien's world were last seen on the big screen in 2003, in The Return of the King. The final scene featured a climactic battle between the men of the West — as well as elves, dwarves and hobbits — against the forces of evil.
On-air challenge: Every answer is a two-word phrase in which the letter "O" is added at the end of the first word to make the second word. For example, given the clue "pack animal owned by Thomas Jefferson's first vice president," the answer would be "Burr burro."
Last week's challenge: Draw a regular hexagon and connect every pair of vertices except one. The pair you don't connect are not on opposite sides of the hexagon but along a shorter diagonal. How many triangles of any size are in this figure?
These days, we're more likely to see professional athletes on products than protest lines. But it wasn't always this way. In the 1960s, sports stars were often as famous for what they believed as for their home runs.
Back then, many athletes spoke out about civil rights. Muhammad Ali was stripped of his heavyweight title and threatened with imprisonment for refusing to fight in Vietnam, on the grounds of racial discrimination.