Thursday, November 18, 2010

Bronze - Ancient And Modern Alloy

Bronze is an alloy that goes back at least to the 4th millennium B.C. Bronze artifacts have been found in what is now known as Iran and Iraq. It was one of the most innovative and important alloys ever created by humans.

It is much harder than pure copper or stone, and for this reason bronze was used to make many different kind of tools, weapons, other kinds of implements, armor, decorative tiles and statues.

Bronze was used to make cannons because it causes very little friction in metal to metal applications. Iron cannon balls could be used in a bronze cannon without any fear of the ball sticking in the barrel. The relatively low melting point of the alloy and its malleability made it the most used type of metal for centuries. So many things were made from it that a period of human history is known as The Bronze Age.

The two main metals that comprise bronze are copper and tin. As these two metals are not commonly found in the same areas, historians think that when the alloy became more widely known and in demand, that this led to increased trade in the ancient world. Most bronze is 88 percent copper and 12 percent tin.

Bronze is still used to make many items today. As it does not generate sparks when struck against a hard surface, it is used to make mallets, hammers, wrenches and other tools used in high explosive areas and areas with flammable vapors. It is also used for springs and all types of bearings, especially bearings for use in small electric motors.

One of the most common uses of the alloy in ancient and modern times is the casting of statues. Highly detailed molds can be used because bronze has some unique characteristics. It expands slightly before it completely sets, thus filling all the finely detailed areas of a mold. Bronze also shrinks slightly when it is completely set, thus making it very easy to remove from molds.

The progression of human learning has created many new things to replace the old. While bronze is not so extensively used as it was in ancient times, there is no modern replacement for it. It is still the best material for certain uses. It is truly an ancient and modern alloy.


5 comments:

  1. The best accurate Forex signals provider is Hot Forex Signal. Get Forex signals service via Email, Skype, Whatsapp, Telegram and so more. Hot Forex Signal provides 2 type services. 1st service is the best Forex signals and 2nd Service Mt4 Trade Copier. Follow their trial signals service and make a large amount of profit within a very short time. If you interest let visit - free forex signals

    ReplyDelete
  2. Most profitable and honest Forex signals service provider is USA Forex Signal. Worldwide real time Forex signals and famous Forex signals provider Company. Use Forex signals service via Telegram, Whatsapp, Skype and Email. Visit website for forex signals

    ReplyDelete
  3. Forex Signals Es is the best Forex signals and accurate Forex signals service provider in the world. Get reliable forex signals service and forex signals telegram service by Forex Signals Es.

    ReplyDelete
  4. Trade Forex Copier is best Forex signals and accurate Forex signals service provider. Use Trade Forex Copier service via forex signals telegram, Skype and Whatsapp. Trade Forex Copier also provides reliable Forex trade copier service.

    ReplyDelete
  5. Look at the way my partner Wesley Virgin's report launches with this SHOCKING and controversial video.

    Wesley was in the military-and shortly after leaving-he found hidden, "self mind control" secrets that the CIA and others used to get whatever they want.

    These are the exact same tactics lots of celebrities (especially those who "come out of nothing") and elite business people used to become wealthy and successful.

    You probably know that you utilize only 10% of your brain.

    That's mostly because most of your brainpower is UNCONSCIOUS.

    Maybe that conversation has even occurred INSIDE your own brain... as it did in my good friend Wesley Virgin's brain around 7 years ago, while riding an unlicensed, beat-up trash bucket of a vehicle without a driver's license and with $3.20 on his debit card.

    "I'm absolutely fed up with living paycheck to paycheck! When will I become successful?"

    You've been a part of those those conversations, isn't it right?

    Your very own success story is waiting to happen. All you need is to believe in YOURSELF.

    CLICK HERE TO LEARN WESLEY'S SECRETS

    ReplyDelete

About Me

My photo
Worked in a steel mill for 30 years. Amateur chef, piano player, book reader, letter writer, gardener, peace advocate.