> Only when the radiation was increased beyond legal levels did the plants > incur damage - through heat and thermal effects, van der Graaf added.>> > > =A0** My Dodgy Science Detector went off. Science sounds bearable - the person doing it knows the limitations and is trying to convey this to others, but the message is probably being lost. Sample of 10 has a margin of error of about +/- 30% :-) (for normally distributed population etc). . Power above legal limits at 1.5m (I think they said) max range, and having thermal stress as observed damage mechanism all say that, so far, there is no observed real world problem. That may not be how it gets reported in due course. Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .