Mental Floss

TECH

Screenshot of the Location History Visualizer tool

This Tool Creates a Heat Map of All the Places You've Visited

It's both creepy and useful.

iStock/Marc Bruxelle

How Does Cryptocurrency Work?

It's been described as both the future of money and pyramid schemes. Who's right?

iStock.com/Prykhodov

The Simple Way to Delete Your Google Search History

It only takes a few seconds to wipe out the search engine's memory.

Ember

This Smart Mug Alerts You When You've Had Too Much Caffeine

The mug that controls your beverage temperature can also help you stay healthy.

iStock/Sproetniek

How Polygraphs Work—And Why They Aren't Admissible in Most Courts

Even its inventor was worried about calling it a "lie detector."

iStock.com/Rawpixel

8 Emojis That Caused a Public Backlash

When Apple made their peach look less like a butt, people revolted.

iStock

Duolingo Adds Two Endangered Languages to Course Offerings

Roughly half the world's spoken languages are in danger of disappearing for good.

HBO

Game of Thrones Producers Deployed 'Drone Killers' to Prevent Photo Leaks and Spoilers

Nothing gets by these folks.

iStock.com/beer5020

Waze Carpool Will Help You Find the Perfect Commute Buddy

You can also use it to hitch a ride with coworkers.

iStock/mastermilmar

Dream Job Alert: Get Paid $25 an Hour Just to Watch Sports

Sign us up.

iRobot

The Latest Roomba Vacuum Will Even Empty Its Own Dust Bin

Vacuuming by robot now involves even less effort than before.

Courtesy of Marc Teyssier

This Creepy Finger Plugs Into Your Phone and Drags the Device to You

If that isn't terrifying enough, it also strokes your hand.

IRL Glasses, Kickstarter

Experiencing Information Overload? These Glasses Make Screens Look Black

They're inspired by John Carpenter's 'They Live.'

iStock.com/pressureUA

New Google Maps Commuter Tab Shows Traffic Delays and Tracks the Location of Your Train or Bus

You'll never be late again.

YouTube

Augmented Reality App Shows What Important Women in History Would Look Like on Our Currency

Meanwhile, we're still waiting on that Harriet Tubman $20 bill ...

iStock

Google's Celebrating Its 20th Birthday With Some Retro Easter Eggs

Search the web like it's 1998.

iStock

Google Now Lets Parents Manage Their Kids' Phone Time Remotely

The feature is now available on all Android phones.

iStock

AI Is Tackling Yet Another Creative Medium: Improv Comedy

The bot has been likened to a “completely drunk comedian."

Apple

Move Over Life Alert: New Apple Watch Can Tell When You Fall and Will Call For Help

It launches September 21.

iStock

You Could Get Paid $2000 to Binge-Watch 100 Hours of TV This October

Put your television-watching experience to good use.

Justin Sullivan, Getty Images

11 Facts About the FBI's 10 Most Wanted List

For 70 years, the Federal Bureau of Investigation has been alerting the public to some of the most dangerous criminals in their midst.

iStock

Sweden's Twitter Account Will No Longer Be Run By Its Citizens

Follow the "Curators of Sweden" while you still can.

iStock

Robots Are Really Good at Applying Peer Pressure to Kids

Kids can be persuaded to believe a robot's filthy lies.

iStock

Email Regrets? Android Users Can Now Unsend Their Gmails

But you've only got 10 seconds to decide.