Trivia

Hard

Google Has Leveraged Security Captcha To Successfully Do What?

Solve Encryption Algorithms
Fold Proteins
Digitize Books
Analyze Astronomical Data

Answer: Digitize Books

A captcha is a small puzzle intended to establish that the user of a service or interface is human. Any time you’ve gone to sign up for an email newsletter, join a discussion forum, or other online activity and been asked to identify a word, read text with scribbles through it, label a photo, or other activity that a computer would be terrible at but even a very unclever human would excel at, you’ve experienced a captcha.

Historically, captchas were just blurbs of text or numbers meshed into a loud background. If you were a computer, you couldn’t easily parse out the data hidden in the image file, but a human could easily see that behind all the yellow and blue marks there was a sequence of letters and numbers like “Y345LW8”. Type that sequence in and you confirm that you’re not just a dirty spam bot.

What if you could leverage all those hundreds of thousands of useless captcha solutions and make them useful? That’s exactly what Google did with the reCaptcha system. Instead of giving you a random string of letters and numbers masked by hash marks, they serve up a pair of words from their enormous database of digitized books, newspapers, and other documents. All of those documents have been worked over by Google’s OCR software, but as anyone who has used OCR software can tell you, even the best software is very unreliable. Humans, however, are fantastic at reading text that is blurry, smudged, unclear, or otherwise unrecognizable to a machine. So every time you visit a web site with a reCaptcha in place, you’re actually helping Google to figure out exactly what that scanned word is. When enough users return the same value for the word, it is reanalyzed and confirmed.

Trivia

Hard

Which Sci-Fi Star Was Granted The Honorary Rank Of Air Force Brigadier General?

Trivia

Hard

In A Blind Taste Test, Spoons Of Which Metal Type Made Food Taste Best?

Trivia

Very Hard

What Is The Oldest Manmade Object In Earth Orbit?

Trivia

Hard

Which Movie Is Claimed to Have “Cursed” Companies Featured Within It?

Trivia

Hard

The Modern Celebration Of Halloween Was Heavily Influenced By The Festival Of?

Trivia

Easy

What Movie Series Were The First Themed LEGO Building Sets Based Off Of?

Trivia

Very Hard

What Early Cinema Technology Was The First To Perfectly Synchronize Sound?

Trivia

Hard

Photo Lab Printers Are Calibrated Using A Tool Known As A?

Trivia

Hard

The Town Of Castle Rock, Found In Many Stephen King Works, Was Inspired By Which Novel?

Trivia

Hard

The “Screen-Door Effect” Is a Problem Engineers Need to Overcome In What Product?