Cleopatra's crown was made of gold.
The kings crown was made of gold and sported some of the largest diamonds and other precious stones ever found in the world, called the crown jewels.
King Mene's main contribution to the success of Egypt was that he took over Lower Egypt and overthrew the king of Lower Egypt and he united both upper and lower Egypt into one great big kingdom. King Menes (or Narmer as he is also known) also showed unity of these two lands by building the city of Memphis which is in the middle of where the border of Upper and lower Egypt was. he also created the doudle crown, a crown made up of both the crown of Upper Egypt (the White Crown,) and the crown of Lower Egypt (the Red Crown)
I believe Archimedes (a Greek mathematician) discovered buoyancy in 212-250 B.C.. He was hired by the king of Syracuse on the island of Sicily, to find out if his crown was made of true gold or just another metal with a similar physical state. He took a bath one day and realized that his mass displaced the water in the bath tub when he sat down. He then measured a bar of true gold with the same mass as the crown comparability in water. The goldsmith had made the crown with both gold and metal. For a full explanation of how the buoyancy principle works go to the related question "What is the buoyancy principle?" in the Related Questions section below.
goldWhoever constantly leaves the one word answers should be banned. King Tut's outer most coffin is made of wood and is overlaid with gold foil. The second coffin (inside the outer most) is the same. Only the inner most coffin was made of solid gold...approximately 2500 pounds worth of it. That makes it worth roughly 55 million dollars in gold weight alone as this is typed.
Archimedes used water displacement to determine the volume of the crown and compared it to the volume of pure gold of the same weight. If the crown's volume was greater, meaning it had been alloyed with a less dense metal, then the king's crown was not made of solid gold.
Archimedes was told by the king to find out if his crown was made of pure gold, calculating the density of the crown, Archimedes found it to be a mix of gold and silver.
Cleopatra's crown was made of gold.
Hiero II, the King of Syracuse, wanted Archimedes to determine if gold had been withheld from a crown by the goldsmith commissioned to make it. Without damaging the crown, Archimedes used water displacement to prove that the gold was not all there.
gold
To determine if a crown is made of pure gold, you can perform a density test by measuring its weight and volume. Pure gold has a specific density of 19.32 g/cm3, so if the crown's density matches this value or is very close, it is likely made of pure gold. You can also conduct a chemical test like the nitric acid test to confirm its purity.
Queen Elizabeth II has, in the past, opted to use a stylised representation of St.Edward's Crown, made in 1661, which is said to be made of gold melted from King Alfred's Crown and both heavy and difficult to wear. The Imperial State Crown, made in 1937 for King George VI, is worn after the conclusion of the Coronation ceremony when the monarch leaves Westminster Abbey, and also at the annual State Opening of Parliament.
Cleopatra had a crown which was made out of gold. Not much else was known about it, but people say her crown had a cobra on it.
To determine if the crown is pure gold, calculate its density using the formula density = mass/volume. Substituting the values given, the crown's density should be 1800 g / 110 cm^3 = 16.36 g/cm^3. Since the density of gold is 19.3 g/cm^3, the crown is not made of pure gold as its density is lower than that of gold.
During Archimedes' time in Syracuse, King Hieron, the king of Syracuse and a close friend of Archimedes, commissioned the construction of a beautiful golden crown. When the goldsmith returned the crown, the king suspected him of stealing some of the gold and replacing it in the crown with silver. The king wanted to make sure that he got all of his gold back, so he asked Archimedes to discover the true contents of the crown. If Archimedes could determine the crown's true contents, he could tell the king whether or not the goldsmith gave him all of his gold back. Archimedes pondered this problem for some time, and one fateful morning in the baths of Syracuse he found the answer. Archimedes was stepping into the tub when he noticed that this action caused some of the water in the tub to overflow. He suddenly realized that the volume of the water that was being displaced equaled the volume of his body in the tub. He then ran through the streets of Syracuse naked yelling "Eureka," which means "I found it." He believed that he could measure the volumes of all irregular solids by placing them in water and noting the amount of water displaced. He solved the king's problem by placing equal masses of gold and silver in water. The silver had a greater volume because it displaced more water. That meant that the silver was less dense than the gold because it had the same weight but a larger volume. Archimedes then compared the lump of gold to the crown. The two had the same mass, but when Archimedes measured their volumes, the crown had a larger volume. Therefore, the crown was less dense and not made of pure gold. The king thus knew that the goldsmith had replaced some of the gold in the crown with silver, and he had the goldsmith executed.
That ur stupid and get off of wiki answers and hit the books. ....LOL:{)
it was made of gold