Electromagnetic field measurement. Various instruments used to detect and measure electromagnetic fields. An electromagnetic field is produced by the motion of electrically charged particles. Any electrical device,such as electricity pylons,computers or mobile phones,will produce electromagnetic waves. There have been some concerns that this radiation causes negative health affects,although this theory has not been proven | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Public Health England |
Bildgröße: | 3403 px × 2587 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |