The Difference Between Gold and Silver Bullion Coins and Graded Numismatic Coins

The Difference Between Gold and Silver Bullion Coins and Graded Numismatic Coins Tube. Duration : 3.45 Mins.

Gold and Silver Bullion are valued for the intrinsic value of the metal content. Most coins have .999 % pure gold or silver and usually weighs one ounce. When a bullion coin is graded by a certified grading company like ANACS, NGC or PCGS the value of the coin increases. If the coin is graded at MS 70, the highest possible grade a coin can obtain which means perfect, the value of the coin increases significantly. mikepiro.com

Tags: Gold, Silver, Numismatics, Bullion, Graded Coins, NGC, ANACS, PCGS

Freeze Water by Boiling

Freeze Water by Boiling Tube. Duration : 1.43 Mins.

Water is placed in a bell jar and the vacuum pump is turned in. Eventually the water freezes. Watch and listen to find out why.

Tags: Water, change, of, state, vacuum, pump, freeze