When you hear the word concrete, what do you think of? Concrete is the most commonly used human-made material. It is used to build roads, bridges, and buildings. Félix Candela Outeriño used concrete to make … Read more
In the 1960s, Pittsburgh, like many other cities in the United States, was segregated by race. But Black people were not the only ones in Pittsburgh who suffered from a lack of ambulance care. Instead … Read more
Did you know that birds inspired the first airplanes? Scientists often get ideas from nature. Scientist Emmett Chappelle got some of his ideas from fireflies. He noticed a firefly’s ability to make light, or bioluminescence. … Read more
In the United States and many countries around the world, people are protesting against the mistreatment of Black people, especially by police officers. On May 25, when a Black man named George Floyd was killed … Read more
August 9th is Indigenous Peoples’ Day. The United Nations created the holiday in 1994 to honor indigenous people and cultures around the world. Indigenous people are the first people to live in an area. The … Read more
Fireworks are a spectacular show of art and science. With brilliant bursts of color accompanied by a whoosh, sizzle, and boom, fireworks have become a staple of summer celebrations. Have you ever stopped to think … Read more
July 15 is National Give Something Away Day. It’s a day where you can go through your house and clean out clutter, give things to strangers, and just make the world a better place. There … Read more
You may have heard the saying that “neither snow nor rain nor heat nor gloom of night” will stop postal workers from delivering the mail. But what about COVID-19? Could the pandemic affect not only … Read more
Welcome to one of the biggest light shows nature has to offer! In late May or early June, something spectacular happens in Great Smoky Mountains National Park. Each night for about two weeks, thousands of … Read more
On May 25, an unarmed African American man named George Floyd was killed while he was being arrested in Minneapolis, Minnesota. A video shows a white police officer pressing his knee on George Floyd’s neck. … Read more
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