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The Steel Age 1800s-present
‘With more than 1.6 billion tonnes of steel produced globally each year, steel is one of the most abundant man-made materials on the planet today. An alloy, it is made up almost exclusively of iron (as much as 99 per cent), while its secondary component carbon contributes up to 2 per cent by weight. Carbon is added to…
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The Aluminium Age 1800s-present
'The story of aluminum’s history of use in the U.S. now stretches over 100 years. The start was a modest one, however. Because of the complexities of refining aluminum from ore, aluminum was considered more rare and precious than gold or silver through most of the 19th century. A pure form of the metal was first…
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The Aluminium Age 1800s-present
‘Given that it is the most abundant metal in the earth’s crust, aluminium was always going to play a leading role as an engineering material. The problem has always been that it only rarely occurs naturally in pure metallic form and is locked away chemically in 270 different minerals. Despite the difficulties in extracting…
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The Aluminium Age 1800s-present
‘Given that it is the most abundant metal in the earth’s crust, aluminium was always going to play a leading role as an engineering material. The problem has always been that it only rarely occurs naturally in pure metallic form and is locked away chemically in 270 different minerals. Despite the difficulties in extracting…
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The Plastic Age 1907-present
The following week the students arrive at class even before Rip. They are loving this class and hope that he has plans for future classes. The school bell rings and Rip apologizes when he walks in for not being in class earlier. “I had a meeting with the principal,” says Rip. “He wants me to teach another class so if you…
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Tiffi starts working on her project
Tiffi is so excited about working on a project. She has to do some googling to see what prehistoric age she would like to visit. When she gets home she opens up her lap top and gets a snack and a drink. “What age should I look for?” Tiffi asks herself. “I don’t even know where to begin. Maybe I should look for the…
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Tiffi finishes her project
It does take Tiffi too long to find an interesting video. That was a very good video and it explains it very well. So now Tiffi wants to do it on this age but she needs something that she can put on a poster or picture. That’s it! “I’m going to do a pictorial picture just like the earliest writings!” exclaims Tiffi. It…
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Elsa and Yeti talk about Woodstock
One day Elsa decides to take a walk through the park. Just up ahead she sees Yeti lounging on a park bench looking at something on his tablet. He must be playing Candy Crush! But then she hears some music so it’s definitely not his game. “Hi Yeti, what are you doing?” asks Elsa. “Isn’t it a beautiful fall day today? The…
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How the Vietnam War Empowered the Hippie Movement
‘The hippie counterculture reached its height during the escalation of U.S. involvement in Vietnam and subsided as the conflict drew to a close. On March 8, 1965, two battalions of U.S. Marines landed on beaches of Da Nang, marking the first official engagement of American troops in the Vietnam War. Over the next several…
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Who Were the Hippies?
‘Hippies dancing at a 'Love-In' at the Festival of the Flower Children in the summer of 1967. As the 1950s gave way to the 1960s, the Beats and beatniks gradually gave way to a new kind of counterculture: the hippies, who actually preferred to call themselves “freaks” or “love children.” The hippies were much younger than…
