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Bcause they are more expensive than steel and iron and also not as durable they could bend from the weight of cars or trucks On the assumption that you are not talking about dental bridges (which can be made with gold and silver), none of those metals are cheap enough to consider and all are too soft to support much of a load.
What else can I help you with?
Why aren't bridges made out of gold?
Gold is rare, Gold is heavy, Gold is soft.
What are the materials that make up a conductor?
conductors are made up in such a way that the electricity can pass through them easily. The materials of the conductors may be copper, gold, aluminium, gold, silver, water etc..,
What is a chain made out of?
Depends on what chain you're talking about.. :) Most are made out of Silver, Gold, Sterling Silver, or Metal. Hope it helped you! :P
Can silver be used to make electrical wires?
Silver is used as a low resistance conductive material. Contactors and relays contact points are made of copper and are silver plated to obtain the lowest resistance between the moving contact faces.
Why bridges are made?
bridges are made to cross the rivers by train.
What is the silver value of a 1923 gold coin?
Not a meaningful question. Gold coins were made from gold and copper without any silver in them. Silver coins were made from silver and copper without any gold.
What is a Doric made out of?
Bronze, silver, gold, copper
What includes iron silver copper and gold?
Jewelry can be made from iron, silver, copper, and gold. It is melted down and formed into lovely pieces.
What is jewlery made from?
Jewelry is made up of gold, silver, and copper.
What are coins made out of in 1900?
Copper, Nickel, Silver and Gold
What is the wire made for in a circuit?
Usually copper, sometimes gold or silver.
What are gold silver iron ore copper and tin made of?
Ill answer them in order of how you asked, gold, silver, iron oxide mixed in a rock with various other minerals, copper and tin
EverQuest-what are the coins made of?
Lowest to Highest: Copper, Silver, Gold, Platinum
Why did they make the gold as money before why not mercury copper silver platinum iron bronze or etc?
Gold was made before copper, silver and bronze. Making gold was easier and took a lot less time.
Is rose gold an element?
No rose gold is an alloy of gold (75%), copper (22.25%) and silver (2.75%)
What is Greece money made out of?
ancient Greece money is made from gold, silver, copper, and and electrum
Why are other metals used to make the olympic medals?
Copper Zinc and Tin The bronze medal is made up of 97 percent copper, 2.5 percent zinc and 0.5 percent tin and the gold medal is made up of 92.5 percent silver and 1.34 percent gold, with the remainder copper. The silver medal is made up of 92.5 percent silver, with the remainder copper.
