Trivia

Hard

Frosted Security Glass Can Be Defeated With What Common Item?

Erasers
Cellophane Tape
Copy Toner
Correction Fluid
An example of using cellophane tape to peek through frosted glass.
TheFarmacyMan/YouTube

Answer: Cellophane Tape

Frosting glass by etching the surface with an acidic compound or sandblasting it is a common way to permanently increase the privacy and security offered by the glass. It would appear to be a completely irreversible process short of painstakingly polishing the glass until the etched layer had been completely removed, but there’s a neat little trick that allows you to look through security glass that is only etched on one side: you can press a piece of cellophane tape over it.

This bit of office-supply wizardry works because the cellophane tape temporarily fills in the irregularities of the etched surface (you could also approximate the same effect, albeit in a much messier fashion, by smearing oil over the glass). The result isn’t as perfectly clear as a regular sheet of glass would be, but you can still easily look through it and identify what is on the other side.

Trivia

Hard

Workers In Which Of These Non-Nuclear Industries Are Classified As “Radiation Workers” By The CDC?

Trivia

Hard

The Concept Of Video Game “Mana” Has Its Origins In Which Culture?

Trivia

Hard

Which Of These Colors Appears Least Frequently In National Flags Around The World?

Trivia

Hard

The World’s Smallest Mammal Is The?

Trivia

Hard

What Are The Most Influential Sci-Fi Writers Of The 20th Century Called?

Trivia

Hard

Which Sport No Longer Includes The Component It Was Literally Named After?

Trivia

Hard

In Back To The Future, The Time Machine Was Originally Slated To Be A?

Trivia

Very Hard

What Plant Is Even More Irresistible To Cats Than Catnip?

Trivia

Hard

Early Anti-Counterfeiting Technique Used To Protect Wine Relied On?

Trivia

Hard

What Song Did The Curiosity Rover Sing On Mars?