One of the world’s favorite holiday traditions has a long history. Fireworks started in ancient China where people used explosives because they were believed to ward away evil spirits. From their beginnings as simple noise makers to the dazzling aerial displays that light up our night skies today, fireworks have relied on chemistry to create the sounds and colors that provide excitement and enjoyment. Listen to hear a chemist explain the history and science behind a worldwide celebratory tradition.
Story Length: 4:02
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November 12, 2015
5:53
The battles of Lexington and Concord started the Revolutionary War in 1775. Archaeologists have recently found 240 year old musket balls that were shot in the first battles of the Revolution. The Colonial and British musket balls are from the second battle at Minute Man Park in Lexington, where Captain Parker fought the British and caused them to retreat. With this discovery, people are broadening the area where they thought this battle took place. Although it’s hard to determine exact details, new technology helps archaeologists find out what happened at this site so long ago. Listen to hear more about what can be learned about the start of the American Revolution.
Read MoreJune 25, 2015
6:52
Why do Americans celebrate Independence Day on July 4th? John Adams himself thought that July 2nd would be the day Americans celebrated independence but he was wrong. What happened on July 4th to mark such an occasion? This story explores the origins of Independence Day and examines the issues of slavery and immigration in the early days of the United States.
Read MoreMay 12, 2015
4:54
The Silk Road is an ancient transcontinental trade route that connected Asia and Europe. The Silk Road led a period of trade and prosperity that is remembered in Chinese history as an era of power and prestige. The modern Chinese government is hoping to recreate the Silk Road and connect China to Africa, Europe and other parts of Asia. Some argue that this new goal is a great way to improve connectivity and promote economic development, while others question their motives. Listen to learn more about the ancient Silk Road and the potential impacts of creating a modern one.
Read MoreFebruary 3, 2014
3:56
Many Chinese citizens did not light fireworks this year to ring in the year of the horse because many parts of China already have toxic air pollution levels. Lighting fireworks during the Lunar New Year, also known as the Chinese New Year, is traditionally done to bring good luck. Listen to this story to learn why the Chinese are especially worried about air pollution.
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