Rocks become smoother as rough and jagged edges break off. Students run a model of this process by shaking sugar cubes and gravel together in a plastic container. The sugar cubes become smoother as their edges break off when they collide in the container.
By Diane Alter, Contributing Writer, Money Morning -. Gold prices today (Friday) climbed $18.90, or $1.66%, at $1,158.90, which was a six-week high for the precious metal. Gold prices today climbed after the release of the latest Federal Open Market Committee (FOMC) minutes.
The 28 year record high gold price, in US Dollars, previously $850.00 on the p.m. fix on 21st January 1980, was smashed several times in January and February 2009, hit $1218.25 December 3rd 2009. On the afternoon London Fix of 6th October 2009, gold fixed at $1,038.75 per troy ounce.