But the city also has the American Visionary Art Museum, a museum that celebrates the work of self-taught individuals.

VOA: special.2011.03.07

This is because glass has the hardness of crystal materials while also having a disordered arrangement of molecules like a liquid.

VOA: special.2009.09.16

The United Nations Security Council has the lead responsibility for deciding that an act of aggression has taken place.

VOA: special.2010.06.21

They think that a person who gets up early in the morning for work has the best chance of success.

VOA: special.2010.06.13

Lake Champlain also has the same kinds of environmental problems, including pollution and nonnative sea life, as the Great Lakes.

VOA: special.2009.01.05

For example, lightning can create tubes of glass when it strikes sand that has the right combination of minerals.

VOA: special.2009.09.16

The group's recent "State of the Air" report said Pittsburgh has the worst short-term fine particle pollution in the country.

VOA: special.2009.07.13

But never before has the government used hundreds of billions of dollars to rescue companies that made risky investments.

VOA: special.2009.10.30

But no one has the answer to how much market share Bing will claim from Yahoo or Google in the long term.

VOA: special.2009.07.17

Experts say this park has the greatest number of arches of any similar geographic area in the world.

VOA: special.2009.04.15

Under the United States Constitution, the House of Representatives has the power to bring charges against the president.

VOA: special.2010.01.28

This stone statue has the body of a lion and the head of an Egyptian ruler.

VOA: special.2010.06.23

Someone who has the ability to grow plants well is said to have a green thumb.

VOA: special.2010.05.23

NASA says Kepler-11 has the fullest, most compact planetary system yet discovered beyond our own.

VOA: special.2011.02.09