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We use our smartphones for everything from navigating and looking up restaurant reviews to sharing selfies and checking email and the weather. Some of us even use them to make phone calls. Turns out we’re barely scratching the surface of what we can do with these tiny yet powerful devices—which pack hundreds of times more computing power than the Voyager 1 spacecraft. Here are 10 amazing examples of how bright minds are putting smartphones to bigger use.

1. Function as a 3D scanner

Software developed by a group at the Institute for Visual Computing at the Swiss Federal Institute of Technology (ETH Zurich) allows you to scan a 3D object by moving your smartphone around it. A 3D model appears on the screen, showing you whether you missed anything, and the app can determine the absolute size of the scanned object. You could use this app to capture faces for a three-dimensional portrait or to copy real-world objects for later study or 3D printing.

2. Test for STDs

This smartphone dongle or attachment performs the functions of a lab-based blood test—specifically, an enzyme-linked immunosorbent assay (ELISA)—to test for HIV antibodies and two types of syphilis antibodies. Researchers recently tested it in Rwanda in clinics that work to prevent mother-to-child-transmission and in voluntary counseling and testing centers. With an estimated manufacturing cost of $34 versus the $18,450 typical for ELISA equipment, this device could advance early diagnosis and treatment of these illnesses in developing countries.

3. Give you an instant eyeglass prescription

Smart Vision Labs created the SVOne, a pocket-sized device that measures refractive errors in the eye and displays a digital eyeglass prescription via smart phone. The company founders envision it for use by doctors with multiple offices or limited space and to serve patients who struggle with traditional machinery or have difficulties with mobility. Where it could really shine, though, is in developing countries where millions lack eye care. The World Health Organization reports that some 90 percent of the world’s visually impaired people live in low-income settings with no eye doctors available and that uncorrected refractive errors are the main cause of moderate and severe visual impairment globally.

4. Track your cholesterol

Engineers at Cornell University created the Smartphone Cholesterol Application for Rapid Diagnostics, or smartCARD, to test cholesterol levels. Users clamp the device, similar to a credit card reader, over the phone's camera then place a drop of blood, sweat or saliva on a test strip. Insert the strip into the device and voila, a built-in flash illuminates the strip and an app matches the image's color values and shows results on the phone. Currently, the test measures total cholesterol, but the lab is working on measuring LDL ("bad" cholesterol), HDL ("good" cholesterol) and triglycerides, as well as vitamin D levels. This app might make you re-think that double cheeseburger, eventually.

5. Assess your mental health

Dartmouth University researchers built an Android app that knows the smartphone owner’s state of mind. The app automatically measures sleep duration, number and length of conversations per day, physical activity, locations and time spent there, stress level, eating habits and more—24/7 and without user interaction. Computational method and machine learning algorithms on the phone then assess that data and make higher-level inferences about sleep, sociability, activity, and other behaviors. When 48 students carried phones with the app during a 10-week term, the data significantly correlated with their mental health and academic performance. The app potentially could be used to provide real-time feedback on campus safety and stress levels, identify students at risk, and assess the quality of teaching. It could also be used to monitor mental health, trigger intervention, and improve productivity in the workplace as well.

6. Help keep you sober

The Addiction-Comprehensive Health Enhancement Support System smartphone app, designed for patients with alcohol use disorder, provides audio-guided relaxation and sounds an alert if individuals stray near a high-risk location, such as a bar they previously frequented. Patients leaving residential treatment who used the app reported an average of 1.37 fewer risky drinking days—meaning more than four standard drinks for men and three for women in a two-hour period—than those not using the app. Patients using the app also were more likely to consistently abstain from alcohol.

7. Pilot your drone

An autonomous drone designed at the Vienna University of Technology navigates using the computing power in your smartphone. Drones are typically steered by humans or signals from an earthbound computer, but this one can negotiate completely on its own without external computer input. The smartphone camera provides visual data and its processor acts as the control center, coded in an app. The designers envision a number of possible uses: the device could be sent into a burning building to look around before firefighters enter, guide people in large and confusing areas, or inexpensively monitor illegal foresting. Don’t tell the paparazzi.

8. Pinpoint where gunshots originated

A team at Vanderbilt University's Institute of Software Integrated Systems turned an Android smartphone into a simple shooter location system. The Department of Defense has sophisticated, expensive sniper location systems that use dedicated sensor arrays to pick up on a firearm’s sonic signature. The smartphone version uses external sensors, about the size of a deck of cards, containing microphones and a processor that detects a gunshot’s acoustic signature and exact time. The processor sends that information to the smartphone, which transmits it to other modules and uses triangulation to pinpoint the origin of the gunshot. The system needs several participants, making it best suited for security teams or similar groups, such as SWAT officers...or lost hunters.

9. Alert you that the milk is spoiled

Researchers at MIT developed sensors that can be read by a smartphone to detect ammonia, hydrogen peroxide, cyclohexanone, and other gases. In the future, it could be used to monitor public spaces for explosives and other harmful chemicals, identify environmental pollutants, or detect food spoilage in warehouses. The sensors also could be used in "smart packaging" that detects spoilage or contamination in the foods you buy. Your next phone message could be from that old milk carton in the refrigerator.

10. Improve your hearing aid

This smartphone app could help improve the quality of life of people who use hearing assistive devices, including hearing aids, cochlear implants, and personal sound amplifiers. To remain small and low-cost, these devices typically use not-so-powerful processors. Smartphones, on the other hand, have powerful processors, large memories, microphones, speakers, wireless technology and long-lasting batteries, which can improve the performance of hearing assistive devices. For example, a smartphone could run sophisticated algorithms to distinguish background noise signals and enhance speech.

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When it comes to buying stuff online, most people still prefer PCs. But mobile is becoming an increasingly important sales channel for one particular retail industry above all others: Groceries.

Based on data from PriceWaterhouse Coopers charted for us by BI Intelligence, 37% of all grocery e-commerce sales in October came from purchases on a mobile device like a phone or tablet. Other retail industries, like furniture and health, are not too far behind, but BI Intelligence predicts sales of online groceries will grow at a much faster rate than sales at traditional supermarkets.

Considering how the US grocery industry accounts for roughly $600 billion a year in sales, BI Intelligence forecasts the online grocery market will grow about 21% each year for the next three years. After all, the food and beverage industry is the largest retail industry by far, and online services that can get food into your home — whether it's fresh from the store or already prepared by a restaurant — are in high demand: Companies from GrubHub to Amazon and Uber are already launching campaigns to get in on the action.

 

SEE ALSO: How GrubHub Seamless will capture a bigger bite of the $70 billion takeout market

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Even though Google Wallet has been around for several years, the mobile payment system hasn’t been the industry leader the company had hoped for, mostly because AT&T, Verizon and T-Mobile created a competing app, Softcard. But Google has now reached a deal with those three providers that will result in Google Wallet being pre-installed on new devices later this year.

Google announced today it had purchased some technology and intellectual property from Softcard, and that its Wallet app will be fully integrated into devices from the three carriers. Which is good news for Google Wallet fans and bad news for people who hate bloatware.

Currently, Android users must download Google Wallet from the app store in order to use the tap and pay technology.

“Over the years, we’ve received great feedback from people who use this feature and we’ve continued investing to make it easy and secure for more people to pay with their phones,” the company said in a statement. “A big part of this is working with other innovators in the industry to help provide a seamless experience across a wide range of phones and stores.”

Even though Google created the Android operating system, it doesn’t have the control over Android devices that Apple has over iPhones. That made it much easier for Apple to launch Apple Pay with the debut of the iPhone 6 and 6 Plus last year, while AT&T, Verizon, and T-Mobile phones pushed SoftCard on their Android devices. Google is obviously hoping this move, which would get Google Wallet prominent placement on three of the four largest providers’ phones, will finally give the system some traction.

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