Photo Imaging Evidence

Forensic photography is used to document crime and accident sites as well as offer visual exhibits for judicial cases. Photographs taken at crime scenes are used to preserve forensic evidence so that investigators can revisit situations that have been processed…

Piezoelectricity and Piezoelectric Measurements

Piezoelectric EffectWhen certain crystals, such as quartz and Rochelle salts, are mechanically vibrated, they produce a voltage. The piezoelectric effect is the name for this action. The crystal phonograph cartridge, for example, is made out of a Rochelle salt crystal…
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