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How To: View Air Quality in Apple Maps to See How Polluted Cities & Destinations Are

While the United States, in general, doesn't have the worst overall pollution, the air quality can drastically change from one day to the next. If you're particularly sensitive to pollutants in the air, there are apps that show how clean or polluted the air is in your area, as well as in cities you plan on traveling to, but Apple's making those apps less relevant with a new feature in Apple Maps.

How To: Use Face ID with Sunglasses On

The iPhone X introduced the world to Face ID in 2017, and now, every new iPhone uses Apple's biometric security system instead of the old Touch ID. It's more secure than fingerprint scanners and it's even more user-friendly. True, it's not without its faults, but at least one of the biggest problems can be fixed.

How To: Download Maps & Navigation Routes for Offline Use in Apple Maps

Whether due to spotty cellular reception or just data that you want to save, popular navigation apps like Google Maps and Waze offer an offline feature that lets you navigate from one location to another in the absence of internet service. Apple Maps also lets you use its service offline on your iPhone, though the feature is not as straightforward as it is on its competitors.

Snapchat 101: How to Share Custom Lenses & Filters with Friends That Won't Disappear

In late-2017, Snapchat debuted Lens Studio, a way for anyone to create their own augmented reality "world lenses" that can be shared to anyone with a Snapchat account. If you don't mind spending money, you can even create custom face lenses and basic overlay filters for special events. And while making lenses and filters have gotten pretty easy, distributing them is another matter entirely.

How To: Use U2F Security Keys on Your Smartphone to Access Your Google Account with Advanced Protection

Security-minded users can reduce the risk of phishing by enabling Advanced Protection on important Google accounts, requiring a U2F security token to log in. Using these keys isn't intuitive on most popular smartphone platforms, and you can find yourself locked out if you don't plan ahead. You'll need to learn and practice using U2F keys on your device before enabling this layer of security.

How To: Detect BlueBorne Vulnerable Devices & What It Means

Armis Labs has revealed eight vulnerabilities, called "BlueBorne", which put 5.3 billion Android, iOS, Windows, and Linux devices that use Bluetooth at risk. With it, hackers can control devices, access data, and spread malware to other vulnerable devices through networks. In this post, we will learn about the vulnerabilities, then look at how to find devices that have them.

News: This Genetic Defect Could Be Why Typhoid Mary Never Got Typhoid Fever

Whether or not a microbe is successful at establishing an infection depends both on the microbe and the host. Scientists from Duke found that a single DNA change can allow Salmonella typhi, the bacteria that causes typhoid fever, to invade cells. That single genetic variation increased the amount of cholesterol on cell membranes that Salmonella and other bacteria use as a docking station to attach to a cell to invade it. They also found that common cholesterol-lowering drugs protected zebrafi...