Trivia

Hard

Frosted Security Glass Can Be Defeated With What Common Item?

Copy Toner
Erasers
Correction Fluid
Cellophane Tape
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

What Was The First Rover To Land On A Celestial Body?

Trivia

Hard

What Ornamental Feature Did 19th Century English Aristocrats Keep On Their Estates?

Trivia

Easy

Where Is The World’s Largest LAN Party Held?

Trivia

Easy

Which Of These Animals Is, Unlike Nearly Every Other Mammal On Earth, Mite Free?

Trivia

Hard

Which Mission Was The First And Only Time “Astronaut Ice Cream” Flew In Space?

Trivia

Easy

Early 2D Video Game Characters Were Known As What?

Trivia

Easy

Which Classic Board Game Was Originally Paper Based?

Trivia

Easy

What Is The Most Abundant Element In The Universe?

Trivia

Easy

Which Common Computer Symbol Is Based Off The Binary System?

Trivia

Hard

In The 1960s, RCA Invented A Record That Could Play?