A crystal radio receiver, also called a crystal set or cat's whisker receiver, is a very
simple radio ... The first crystal sets received wireless telegraphy signals
broadcast by spark-gap trans...
Feb 25, 2014 ... Scientists say they have dated an ancient crystal called a zircon to ... The first
rocks that have been found deposited by water are about 3.8 ...
Continous mining goes on since more than a century and in 1910 the first of
several crystal caves was discovered in a depth of 120 m underground. This so ...
The chamber holding these crystals is known as the Crystal Cave of Giants, and
is ... The Naica mine was first discovered by early prospectors in 1794 south of ...
the first crystals were discovered in 1816, when some gold miners came across a
cave of giant crystals.
Feb 25, 2014 ... A tiny zircon crystal found on a sheep ranch in western Australia is the ... To
determine the age of the zircon fragment, the scientists first used a ...
Crystal Cave in Kutztown, Pennsylvania dates back to its discovery in 1871 by ...
including Crystal Cave, for $5000, and became Pennsylvania's first full time cave
... to study and report on the recently discovered cave in Richmond Township.
Probably the first historical references to the use of crystals come from the
Ancient ... included in burials, as it was also found at a later period in Ancient
Oct 27, 2008 ... Hidden deep beneath the surface of the Earth is one of the greatest natural
marvels on the planet: a giant crystal cave packed with crystals up ...
Pokémon Crystal Version (Japanese: ポケットモンスター クリスタルバージョン ... 3.3
Gameplay changes; 3.4 Storyline changes; 3.5 Pokémon not found in Crystal ....
when the player encounters them in the wild, making Crystal the first game to ...