#767 When did Britain become an island?
When did Britain become an island? It was connected to continental Europe by a land bridge that was destroyed 450,000 years ago. Some of the land bridge returned and that…
When did Britain become an island? It was connected to continental Europe by a land bridge that was destroyed 450,000 years ago. Some of the land bridge returned and that…
How thick is the atmosphere? The atmosphere is generally considered to be 10,000 km thick. Our atmosphere is made up of gas. It is 78% nitrogen, 21% oxygen, and one…
What happened at the Bay of Pigs? An American led attempt to overthrow the communist government of Cuba failed. The Bay of Pigs is on the southern coast of Cuba.…
How does a TV screen display different colors? By using different intensities of red, green, and blue. These colors can be displayed with liquid crystal or with gases. All screens,…
When did ultra processed food start? Technically, humans have always processed food, but the modern style of processed food came into being in the middle of the 20th century. The…
When were AD and BC decided? AD probably started in AD 525 and BC probably started in AD 731. All of these are “probably” because there is no concrete evidence.…
What is a nebula? It is an enormous cloud of dust and gas in space. The word nebula is a Latin word, and it means “mist or cloud”. You can…
Why do geese fly in a V-formation? To aid communication and to fly more efficiently. Geese don’t always migrate, but when they do, they can fly for thousands of kilometers…
What is a geosynchronous orbit? It is an orbit that exactly matches the rotation of the Earth. A satellite in geosynchronous orbit goes around the Earth at the same speed…
What are pork barrel projects? It is when politicians secure public money for projects in their home constituencies in order to get support and be reelected. The projects are usually…