#697 What are rare earth metals?
What are rare earth metals? They are a group of 17 elements on the periodic table that are spread out so much in the earth that they are difficult to…
What are rare earth metals? They are a group of 17 elements on the periodic table that are spread out so much in the earth that they are difficult to…
Why aren’t there flying boats anymore? Because landing and takeoff is rough, they are not very stable, engines became more powerful, more runways on land were built, and the sea…
Why do British people say football and Americans say soccer? Britain used to call football soccer until about 1980 when they started to call it football. Before we start, this…
Are symbiotic relationships always beneficial to both parties? No, they aren’t. There are mutualistic, commensalistic, and parasitic symbiotic relationships. The word symbiosis means “a close, prolonged association between two or…
Why are electromagnets stronger than permanent magnets? Because the amount of current and the number of coils in the copper wire can increase the strength of an electromagnet while a…
How thick is tank armor? It depends on the tank, the type of armor, and the location on the tank, but armor is roughly between 10 cm at its thinnest…
What causes a heat wave? It is caused when high-pressure air traps a layer of heat near the surface of the Earth and raises the temperature. A heat wave is…
Why do some countries drive on the left? Because of the way carts were built and then not wanting to change. There are 56 countries that drive on the left-hand…
How do steroids work? They stimulate the production of protein in the muscles and make more cells grow. However, there are many different types of steroids. When people talk about…
Why can fish swim so fast? They move their bodies from side to side in such a way that they produce a backwards moving wave in their bodies, which pushes…