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Question 1: How old are the Pyramids of Giza estimated to be?
Question 2: What bird is the national emblem of the United States?
The Bald Eagle was chosen as the emblem of the United States of America in 1782 due to its long life, great strength and majestic looks, and also because it was then believed to exist only on this continent. It represents freedom and independence.
Question 3: Why does Superman wear his red underpants over his costume?
The design of Superman's costume with the external red "underpants" was inspired by 1930s circus strongmen, who often wore similar outfits. This perfectly suited Superman's role as a superhuman hero.
Question 4: How many Oscars has Leonardo DiCaprio won?
Leonardo DiCaprio won his first and so far only Oscar in 2016 for his leading role in the movie "The Revenant". He had been nominated for an acting Oscar five times before finally winning.
Question 5: Which artist painted the famous "The Night Watch"?
"The Night Watch" is one of the most famous paintings by Rembrandt, completed in 1642. It is known for its size, the dramatic use of light and shadow, and the perception of motion in what would have traditionally been a static military portrait.
Question 6: Where is the heaviest naturally occurring element found on the periodic table?
Uranium, with the atomic number 92, is the heaviest naturally occurring element on the Periodic Table. Its most common isotopes are uranium-238 and uranium-235 which are used as fuel in nuclear reactors and in the manufacture of nuclear weapons.
Question 7: Where does the word 'piano' originate from?
The word 'piano' is derived from the Italian term 'pianoforte', which means 'soft-loud'. This reflects the instrument's ability to produce sounds across a wide range of volumes. The modern piano was invented by Bartolomeo Cristofori of Italy in the 18th century.
Question 8: If you are hit in the "funny bone", which nerve are you actually hitting?
Despite its name, the "funny bone" is not actually a bone. It's a nerve called the ulnar nerve that runs along the inside of your elbow. When you hit it, it causes a tingling sensation and sometimes pain that radiates down to your little finger.
Question 9: What is the gestation period of an African elephant?
The gestation period of an African elephant is the longest of any land animal, lasting about 22 months. After birth, an elephant calf can weigh as much as 120 kilograms (264 pounds).
Question 10: When light passes through a prism, what is the term for the process that causes the different colors to separate?
Dispersion occurs when the various wavelengths of light (each representing a color) are separated due to their differing speeds as they travel through the prism's medium. This results in the formation of a "spectrum" of colors.
The Pyramids of Giza, located in Egypt, were built as tombs for the country's Pharaohs during the Old Kingdom period, roughly around 2,600-2,500 BC, making them approximately 4,500 years old.