We need you to answer this question!
If you know the answer to this question, please register to join our limited beta program and start the conversation right now!
Asked in Criminal Law, Fingerprints
How are fingerprints collected at a crime scene?
The method used to collect fingerprints can differ depending on the surface. Regular powder is used to collect fingerprints off glass and painted surfaces, while magnetic powder is used on shiny surfaces such as a plastic container. ...
Asked in Plumbing
What is sweating copper?
Sweating copper is a method of joining two pieces of copper, generally copper pipes. The surfaces to be joined are first cleaned, then heated generally with a gas torch, then a flux is applied (flux is a material to prevent oxidation of the copper when heated) then a film of solder is run onto the cleaned surfaces whilst hot. This solder is "wiped" off leaving a fine film of solder on the copper. This is generally referred to as priming. The two...
Asked in Police and Law Enforcement
How do the police find fingerprints?
To get fingerprints from a surface the police apply a fine powder (usually aluminium) to the surface where they think a print might be or where they can see one. When they blow or brush it off, the powder sticks to where the fingerprint is. They transfer this powder pattern using sticky tape to a piece of paper so they can see it more clearly. UV lights are also used by forensic scientists to illuminate fingerprints on surfaces and trace evidence on...
What is the gleaming surfaces of the Kota reliquary guardian figures are said to have repelled evil?
Strips of copper were added to the Kota figures to ward off intruders by creating a metallic flash from the sun. Particularly copper was used because it was identified with longevity and power. ...
Asked in Cookware
Is there danger in using copper cookware?
Most copper cookware is tinned, meaning there is a thin layer of tin or other metal applied to the cooking surfaces making it non-reactive. This tinning can be worn off over time and the pan may need to be re-tinned. Exposed copper can create off flavors and colors in foods, but it won't be harmful, your food just won't taste right. ...