How is UV light used in forensics?

How is UV light used in forensics? Ultraviolet (UV) light technologies are used for multiple purposes in forensic investigations, including authenticating paintings and other fine art, authenticating signatures, analyzing questioned documents , illuminating latent fingerprints at crime scenes and trace evidence on clothing, analyzing ink stains, and … What do police use UV lights for? […]

What did a colonial gunsmith make?

What did a colonial gunsmith make? Gunsmiths in colonial times repaired guns and produced long rifles. In Europe, gun parts such as barrels, stocks, locks and fittings were jobbed out to specialists for quality and efficiency. Colonists could not compete with the speed or cost of making guns, so they focused on repair, not production. […]

Who climbed Mount Everest in 1922?

Who climbed Mount Everest in 1922? Mallory also was part of the second expedition, mounted in 1922, which featured the major innovation of using supplemental (bottled) oxygen on some of the ascents. Mallory and his team climbed without supplemental oxygen and reached a height of 27,300 feet (8,230 metres) but could go no farther. Who […]

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