MODEL RELEASED. Electromagnetic field measurement. Scientist using a hand-held detector to measure the strength of the electromagnetic field generated by electrical motors at a cement works. An electromagnetic field is produced by the motion of electrically charged particles. There have been some concerns that electromagnetic radiation causes negative health affects,although this theory has not been proven | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Public Health England |
Bildgröße: | 3661 px × 2359 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |