BRAINBOX - YOUNG DETECTIVES:
Crime Scene Investigation (CSI Wahroonga)
Students learn:
| Curriculum | Learning Activities |
|---|---|
| SCIENCE | Real world forensic investigation |
| TECHNOLOGY | Digital microscope & Ultra-Violet light scanner |
| ART | Blended multimedia elements |
| ENGINEERING | Setup and control of investigative tools and apparatus |
| MATHEMATICS | Comparing results against 'normal' or expected quantities |
Recovering Lost Treasures
Video 1. Recovering Lost Treasures
- IF UNABLE TO ACCESS YOUTUBE VIDEO TRY VIEWPURE:Recovering Lost Treasures
Identification by Ultra-Violet & Fluorescence
When a mineral or other material converts energy of any wavelength into an emission of light waves of a longer wavelength, it is said to be FLUORESCENT. Apparently, this occurs when some of the electrons within certain atoms are raised to a higher energy level by the energy received and, in returning to their former level, give off a visible luminescence. This phenomenon is noted most often when invisible ultraviolet light is directed at a gem material and when the new wavelength given off is in the visible spectrum. When this happens, the invisible light produces a glow within the gemstone that we call Fluorescence. If the glow continues after the energy source is turned off, the result is called PHOSPHORESCENCE.
Examine Evidence Using A Digital Microscope"
Apparatus:
Results:
Based on your results, do you think that knowing more about mathematics is useful for a detective?
Appendix
USB Microsope - Veho VMS-001 (is old version) - 200x + 8LED Hand-held Digital Microscope - gucview manual
A list of materials that glow under ultra-violet
Materials used in fishing that are UV reflective
Display flourescent minerals