The depth of penetration of radiation into tissue is a function of frequency with greater penetration at lower frequencies
The depth of penetration of radiation into tissue is a function of frequency with greater penetration at lower frequencies
http://www.buergerwelle.de:8080/helma/twoday/bwnews/stories/2481/
-----
http://www.buergerwelle.de:8080/helma/twoday/bwnews/stories/2481/
-----
Starmail - 15. Apr, 07:52
