How does cling film stick? Cling film (also called plastic wrap, saran wrap, cling wrap, and food wrap) sticks to surfaces because of static electricity and because of the properties of the plastic it is made of. Cling film (Saran wrap) is another of those products that we can’t live without, but which were discovered […]
#1377 How does cling film stick? Read More »
Why are bubbles round? Bubbles are round because the liquid they are made of is naturally trying to make the smallest area it possibly can, and that is a sphere. A bubble is made when a liquid encloses a gas. If you are making soap bubbles, then that gas is the air. If you are
#1367 Why are bubbles round? Read More »
How is nuclear fuel stored in glass? Spent nuclear fuel is not stored in glass. Spent nuclear fuel can be turned into glass through a process called vitrification. The word “vitrification” comes from the Latin “vitrum”, which means glass. We still use the word in some circumstances. The word “vitriol” comes from the same root.
#1350 How is nuclear fuel stored in glass? Read More »
Who were Rolls and Royce? The Rolls and Royce of Rolls-Royce Limited were Charles Rolls and Henry Royce. Rolls-Royce is a hugely famous brand name, but it is actually not a single company these days. The company has two parts. The largest part is Rolls-Royce plc, which is the part of the company that makes
#1348 Who were Rolls and Royce? Read More »
How can you fire through a propeller? Not a lot of planes did this, but the only way a plane can fire through a propeller is by synchronizing the gun and the propeller. By the start of World War 1 in 1914, powered flight had only existed for 11 years. On December 17th, 1903, Orville
#1347 How can you fire through a propeller? Read More »
Why does a mirror reverse an image? The mirror doesn’t reverse the image. It shows the image face on. It is our minds that make us think it is reversed. The mirror doesn’t flip an image left to right, it flips the image front to back. A mirror is a piece of glass with a
#1344 Why does a mirror reverse an image? Read More »
What is the Geneva Convention? The Geneva Convention is actually the Geneva Conventions because there are more than one. It is a set of four treaties that lay out the humanitarian rules of war. There were four meetings, held in 1864, 1906, 1929, and 1949. Both of them came after a major war, when people
#1342 What is the Geneva Convention? Read More »
What is a Banana Republic? A Banana Republic is a small, poor, politically unstable country with an economy dependent on one export and usually controlled by foreign companies. The existence of US controlled banana republics have created an environment where drug cartels can rise up. Banana Republic is not a positive term. The economy is
#1341 What is a Banana Republic? Read More »
What are the Miranda rights? The Miranda rights are a set of warnings that have to be given by police to suspects that they intend to interrogate for information. If the police don’t read you your Miranda rights before you are interrogated and you go on to provide important information that proves your guilt, this
#1338 What are the Miranda rights? Read More »
What is Esperanto? Esperanto is a language constructed by L. L. Zamenhof in 1887. He meant it to be the international language. Around the world there are 2,000 native speakers of Esperanto and 100,000 people that can speak it. The word “Esperanto” means “one who hopes”. It is an artificially created language and the most
#1325 What is Esperanto? Read More »
