How many types of plastic are there? There are many different types of plastic, but they have been grouped into 7 different types of plastic. They are PET, HDPE, PVC, LDPE, PP, PS, and other. You can tell which ones they are because of their Resin Identification Code, which has a triangle made of arrows […]
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What were the ratlines? The ratlines were the routes that many Nazis used to escape from Germany after the end of World War 2. Many of them escaped to countries in South America, but some were even accepted into the United States. At the time, the name “ratline” was only used to refer to Croatian
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Why are some oils healthier than others? Some oils are healthier than others because of the amount of saturated fat they contain, the way they are made, and what they are made from. We all know that olive oil is good for you and many people cook with it and drizzle it on their salads.
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What are self-healing materials? Self-healing materials are materials that can detect when they have been broken and then repair themselves without any human intervention. In essence, our skin and bones are self-healing materials because they know when they have been damaged and can repair themselves when cut without needing any external support. The majority of
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What is the Domesday book? The Domesday Book is the old English spelling of “Doomsday Book” and it was a survey by William the Conqueror of the financial state of England and Wales in 1086. The book wasn’t called the Domesday book until the following century. It was so named because it was a final
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Why is the border of Western Australia not straight? The border of Western Australia isn’t straight because they marked the border from the north and from the south at the same time and missed by 127 meters. If you zoom in on a Google map of Australia and look at the point where the borders
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Why do some dragonflies migrate so far? Some species of dragonfly migrate a long way because of temperature and other triggers. How they do it is probably more interesting than why they do it. There are two species of dragonfly that we are going to look at today. The first species is called the Green
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Is there anything that can eat plastic? There are some bacteria that can eat plastic and the larvae of the wax moth can also digest plastic. However, they cannot digest all plastics and they take a long time. There is nothing that can eat all plastics. The main problem with plastic is the main reason
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Why did Constantinople fall? Constantinople fell because the Byzantine Empire had been declining for centuries and was no longer strong enough to hold it. Constantinople fell on 29th May, 1453. This is the day that marks the end of the Byzantine Empire, which is also the end of the Roman Empire. It is also said
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Did the Vikings get to America before Columbus? Yes. The Vikings appear to have reached North America in 1021, which is 471 years before Christopher Columbus arrived in the New World. The Vikings reached North America a long time before Columbus arrived in South America, but they didn’t stay there for very long. They settled
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