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How are Marbles Made

Marbles are small round balls that have been used as a toy since ancient times. They are usually made from glass, but can also be made from steel, clay, plastic and agate (a type of silica). The marbles can be used for a number of games that have the same . . . Read more

Who Designed and Built Admiralty Arch

Admiralty Arch is a well known landmark found in London, England. It is a unique building that includes archways that provide vehicle and pedestrian traffic between Trafalgar Square and The Mall. It was once the home of government offices, but in 2012 the lease was transferred to a property developer . . . Read more

Who Invented the Barometer

A barometer is an meteorology instrument that is used to take measurements of the atmospheric pressure. This is useful for weather analysis and weather forecasting because it can be used to forecast changes in the weather (short term only). A network of weather stations with barometers led to the production . . . Read more

Where Does Cabbage Come From

Cabbage is an edible white/green, and sometimes purple, plant that has many culinary uses. It can be eaten raw or cooked and is the key ingredient in coleslaw and sauerkraut. It is closely related to cauliflower, Brussels sprouts and broccoli. There are many varieties of cabbage, but the most common . . . Read more

Chris Pratt Movie List

Chris Pratt is a celebrity actor who rose to prominence on the small screen with roles in the television series “Everwood” and “Parks and Recreation.” He has since transferred this success over to the large screen with roles in the hit movies “Moneyball,” “Zero Dark Thirty” and “Guardians of the . . . Read more

What do Newts Eat

Newts are an water dwelling (aquatic) amphibian that closely resemble a lizard. Despite this, they are a part of the salamander family and are not actually closely related to lizards at all. They can be semi aquatic or live permanently in the water. Newts are found in parts of North . . . Read more

Who Discovered Hafnium

Hafnium is a shiny, silvery metal that is corrosion resistant. IT is a chemical element and is represented by the atomic number 72 and the chemical symbol Hf. It is not found in its free form on Earth, but it can be found combined with zirconium in most naturally occurring . . . Read more

Why are Red Pandas an Endangered Species

The red panda, not to be confused with the giant panda (which it is not closely related to), is a species of tree dwelling mammal best known for their red-brown fur and striped tail. A red panda grows to about 64 cm (25 inches) in length with an additional tail . . . Read more

Uses of Molybdenum

Molybdenum is a silvery-gray metal with one of the highest melting points of any natural element. Molybdenum is a chemical element with the atomic number 42 and is represented by the chemical symbol Mo. This metal is never found in its free form on Earth, but can be found in . . . Read more

How Many Active Volcanoes are there on Earth

A volcano is basically a natural opening in the crust of the earth where magma (lava), steam (along with other gases) and ash can escape. A volcano is like a chimney which transfers the molten rock, found in the depths of the earth, to the surface. Most volcanoes are dormant . . . Read more