Evidence
The very first thing taken when a piece of evidence is found at a crime scene
What is a photograph?
What is natural glass from sand?
The fracture that is not stopped by any other fracture line
What is the first fracture?
The ratio of mass of an object to its volume
What is density?
A non-crystalline, often transparent, amorphous (without shape), solid that is produced at incredibly high temperatures
What is glass?
The evidence type of most glass found today (due to its mass production)
What is class evidence?
The type of glass that is used to protect the Mona Lisa
What is bullet proof glass?
The side of impacted glass that is compressed
What is the side that was hit?
The constant line used to better display the change when a beam of light moves from one medium to another (aka refractive index)
What is a normal line?
The natural phenomenon responsible for the creation of glass
What is sand and lightning?
A type of evidence that includes paint chips, small pieces of glass, small shards or plastic, and fibers
What is trace evidence?
The type of glass that is a double layer held together by a piece of plastic in the middle layer
What is laminated glass?
The speed that will result in tighter concentric circles
What is higher speed?
The method used when glass found at a crime scene is too small (involves placing glass into different liquids of known refractive indexes)
What is the submersion method?
The most prevalent uses for glass
What are window panes and glass containers?
The fragments of glass left on the side of an impact
What is backscatter?
The type of glass containing crystal (lead oxide)
What is lead glass?
The type of fracture pattern of cracks that move outward from a point of impact
What is radial fracture?
The use of a microscope to get a more in depth analysis of a piece of glass evidence
What is microscopy?
The primary ingredient in glass
What is silicon dioxide (SiO2)?
The case study involving a staged burglary using a broken window that's glass had not been walked on
What is Robb?
The type of glass that is chemically or heat treated safety glass (often seen on cellphone screens)
What is tempered glass?
Helps locate the position of a glass shatter from a bullet
What is the bullet entry angle?
The halo-like effect that appears at the edges of a glass fragment when the reflective light of the glass and liquid are different
What is a Becke Line?
because it is inexpensive, chemically stable, reasonable hard, easy to melt/shape, easily recyclable, non reactive, and does not deteriorate over time
What is the reason why glass is used so much?