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HYPOTHESIS I hypothesize that all of the materials listed in the previous slide will decrease WiFi signal strengths, but the glass will have the least effect. Glass will have the least effect on the WiFi signal because it allows the low frequency light to pass through. I think that the metal door will have the greatest effect on the signal because it does not let as much light energy through. What materials reflect signals? What materials absorb signals?
The wireless signals in your home, you'll be glad to hear, are a form of non-ionising radiation-Radio Waves. The Radio Waves emanating from your Wireless router and Wireless adaptor are about 15 to 20 times lower than that from a mobile phone. However, the SAR values for phones were derived from short bursts to the head. Wireless signals are constant, so it is difficult to compare the two.