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Google Maps

How Does Google Maps Know Where Traffic Is?

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Google Maps

Before you leave the house in the morning, a quick glance at Google Maps can tell you which routes should be avoided at all costs and which ones might get you to work a few minutes early. Google Maps can even tell you how long you can expect to be delayed should you take a route that’s more congested than usual. How can it possibly know up-to-the-minute information about your day-to-day travel plans?

The answer is one part creepy, one part cool: Google gets its information from you, according to Business Insider. The company uses the Location Services function on Apple and Android phones to track your coordinates. If you have the Location Services capability enabled for Google Maps, you're constantly sending real-time data about your whereabouts and the time it takes you to get from place to place. Google combines everyone’s data to determine the concentration of cars on the roads and how fast they are moving. (Or aren’t moving, depending on your situation.)

Over time, Google has compiled all of this traffic information to create traffic histories, which is how it can tell you if traffic is running slower or faster than “normal.” It also uses information gleaned from the Waze app, which includes updates from Departments of Transportation from across the country—that’s why Google Maps can pinpoint specific accidents.

If this is all a bit too Big Brother for your liking, you can simply disable Location Services on your phone—but you'd better hope that everyone else doesn't follow suit, or else Google's impressive calculations would be rendered completely useless.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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WASProject via Flickr
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The World’s First 3D-Printed Opera Set Is Coming to Rome
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WASProject via Flickr

In October, the Opera Theater in Rome will become the first theater to play host to a 3D-printed set in one of its operas. The theater’s performance of the 19th-century opera Fra Diavolo by French composer Daniel Auber, opening on October 8, will feature set pieces printed by the Italian 3D-printing company WASP, as TREND HUNTER reports.

Set designers have been using 3D printers to make small-scale set models for years, but WASP says this seems to be the first full 3D-printed set. (The company is also building a 3D-printed town elsewhere in Italy, to give you a sense of its ambitions for its technology.)

Designers stand around a white 3D-printed model of a theater set featuring warped buildings.
WASP

The Fra Diavolo set consists of what looks like two warped historic buildings, which WASP likens to a Dalí painting. These buildings are made of 223 smaller pieces. It took five printers working full-time for three months to complete the job. The pieces were sent to Rome in mid-July in preparation for the opera.

Recently, 3D printing is taking over everything from housing construction to breakfast. If you can make an office building with a printer, why not a theater set? (Though it should be noted that the labor unions that represent scenic artists might disagree.)

[h/t TREND HUNTER]

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A Simple Way to Charge Your iPhone in 5 Minutes
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iStock

Spotting the “low battery” notification on your phone is usually followed by a frantic search for an outlet and further stress over the fact that you may not have time for a full charge. On iPhones, plugging your device into the wall for five minutes might result in only a modest increase of about three percent or so. But this tip from Business Insider Tech may allow you to squeeze out a little more juice.

The trick? Before charging, put your phone in Airplane Mode so that you reduce the number of energy-sucking tasks (signal searching, fielding incoming communications) your device will try and perform.

Next, take the cover off if you have one (the phone might be generating extra heat as a result). Finally, try to use an iPad adapter, which has demonstrated a faster rate of charging than the adapter that comes with your iPhone.

Do that and you’ll likely double your battery boost, from about three to six percent. It may not sound like much, but that little bit of extra juice might keep you connected until you’re able to plug it in for a full charge.

[h/t Business Insider Tech]

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