Do archaeologists have x-ray vision? Carrie Straight 05.14.01 New techniques have helped archaeologists in their field of science. One of these new techniques uses ground-penetrating radar. This machine sends radiation into the ground, which reflects off different material back to the machine. If the radar hits water or air, the archaeologist can tell the difference between them and normal soil. This allows the researchers to scan areas and find caves that they may not have found any other way. The archaeologists tested the ability of the radar over known cave sites. They compared the results from a known site to their new findings and decided that their results showed a new cave or passageways. The discovery of unknown caves may provide new places for archaeologists to dig up our history. Chamberlain, Andrew T., William Sellers, Chris Proctor, Roslyn Coard. 2000. Cave detecting in limestone using ground penetrating radar. Journal of Archaeological Science 27: 957-964. ©2001 The Aurora Collection, Inc. All Rights Reserved. Site Development by: Interactive Multimedia. Inc.