I learned this today. Nobody actually knows what the core of Jupiter is like. The most predominant theory is that it has a rocky core surrounded by a layer of metallic hydrogen. Jupiter is the largest planet in the solar system. It is 1,321 the volume of Earth and is a gas giant. It is […]
#190 What is the core of Jupiter like? Read More »
I learned this today. Our voices change when we inhale helium because sound travels through it faster than it does through air. There are two things we need to look at: Why sound travels at different speeds through different mediums and how our voices work. Sound is a wave of vibrations that travel through a
#189 Why does our voice change when we inhale helium? Read More »
I learned this today. The Teapot Dome scandal had nothing to do with tea or teapots. It was the biggest scandal in America before Watergate. It all started when the US Navy started to convert its ships from coal power to oil power in 1909. They needed a reliable supply of oil and President Taft
#188 What was the Teapot Dome scandal? Read More »
I learned this today. It is possible to make a new element, but it is not easy, takes a lot of power, and the resultant element would not be very stable. There are 118 known elements that appear on the periodic table. The first 94 of them occur naturally on Earth and the other 24
#187 Is it possible to make a new element? Read More »
I learned this today. Vellum is a material for writing on that is made from prepared animal skin. The document on the front of this article is the Magna Carta. It is the document that tried to control King John of England and is one of the most famous documents in the UK. It was
#186 What is vellum? Read More »
I learned this today. The California Gold Rush started when James Wilson Marshall found gold flakes in the American River at the base of the Sierra Nevada Mountains near Coloma in California on January 24th, 1848. California was governed by Mexico after it gained independence from Spain in 1821. The area was remote and sparsely
#185 What started the California Gold Rush? Read More »
I learned this today. The Western Roman Empire ended in 476 and the Eastern Roman Empire ended in 1453. The state of Rome became a republic in the 6th century BC and started to expand throughout Italy. By the 3rd century BC, it had taken over all of Italy and started to look for other
#184 When did the Roman Empire end? Read More »
I learned this today. Mars could be terraformed, but it would require more money than any government would be able to spend. Terraforming is the process by which an uninhabitable planet is transformed into a habitable planet. This would require modifying the atmosphere, temperature, ecology, and adding water. Carl Sagan came up with the idea
#183 Could Mars be terraformed? Read More »
I learned this today. Pineapples grow from a small shrub and not on a tree. The majority of fruits grow on trees. Some that don’t grow on trees grown on a hanging vine, like grapes. Some grow directly on the ground. Watermelon and other melons grow on the ground, but they are technically berries, and
#182 How do pineapples grow? Read More »
I learned this today. Some metals are not magnetic because the magnetic poles of the atoms within them point in different directions and are weakly repelled by both poles of the magnet. There are different kinds of magnets. Some are permanent magnets, some are magnetized metals, and some are electromagnets. Magnetized metals are magnetic only
#181 Why are some metals not magnetic? Read More »
