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iOS 17 Tips, Tricks, How-Tos, News

How To: Make a Hyperbolic Paraboloid Using Skewers

In Monday's post, we created a sliceform model of a hyperbolic paraboloid. In today's post, we will create a similar model using skewers. The hyperbolic paraboloid is a ruled surface, which means that you can create it using only straight lines even though it is curved. In fact, the hyperbolic paraboloid is doubly ruled and is one of only three curved surfaces than can be created using two distinct lines passing through each point. The others are the hyperboloid and the flat plane.

Hack Like a Pro: How to Scan for Vulnerabilities with Nessus

Welcome back, my tenderfoot hackers! Generally, you will want to perform a vulnerability scan before doing a penetration test. Vulnerability scanners contain a database of all known vulnerabilities and will scan your machine or network to see whether those vulnerabilities appear to exist. If they do, it is your job to test whether they are real and can be exploited.

How To: The Simple Trick to Stop Your iPhone from Automatically Going to Sleep

You're halfway through reading an article on your iPhone, when the display just turns off. Frustrated, you open the article again, only for the display to go black again. You shouldn't have to keeping touching the screen to keep your iPhone from going to sleep. Luckily, you can delay or even stop your iPhone from doing so with just a few taps.

How To: Monitor the Battery Levels of All Your iPhone Bluetooth Accessories with Just a Swipe

The battery icon in your iPhone's status bar gives you a visual idea of how much power is left, and there's a battery percentage option you can switch to or view in the Control Center, depending on your model. But what you may not know is that there's a way to view the battery percentage of every device connected to your iPhone, from AirPods to Bluetooth speakers and your Apple Watch.

How To: High Heart Rate Warning on Your Apple Watch? Here's What That Means

Your Apple Watch sends you notifications from friends, family, and the apps that are important to you. Occasionally, however, the watch may scare the heck out of you with a notification warning of an abnormal, elevated heart rate. If you have no history of heart conditions, this alert might come as a shock. Why do you have a high heart rate, and what are you to do with the information?

How To: Set a GIF as a Live Wallpaper for Your iPhone's Lock Screen Background

In iOS, Apple provides a few live wallpapers that you can use for the background on your iPhone's lock screen, but these animated options are just wavy color shifts and ink-in-water effects. To really customize your lock screen, you can use a Live Photo for your wallpaper. If you can't find the right Live Photo, GIFs are the next best thing, and experimenting with them feels like a game almost.

How To: Get a 'Select All' Button for Webpages in Safari on Your iPhone

It should be simple to select and copy all text on a webpage in Safari, but it won't work as it does in other apps. Usually, you can press-and-hold down anywhere on a page and choose "Select All" from the edit menu, but that functionality is disabled in Safari and WebKit-based browsers by default — including in the latest iOS 14 version. Luckily, there is a workaround to getting a "Select All" button back.

Android Basics: How to Root with CF Auto Root

The sheer variety of Android devices on the market is staggering—one report suggests there are well over 24,000 distinct phones and tablets floating around out there. When you consider that each manufacturer adds a few tweaks to the Android code base here and there, that makes for a lot of software variations, which in turn means there needs to be many different root methods to match this variety.

How To: Make Your Home Screen's Photo Widget Show Only One Image or Specific Albums in iOS 14 Instead of Random Pics Every Hour

Your iPhone's new home screen widgets are awesome — until they're not. Photos, in particular, is a big disappointment. It gives you a taste of having your favorite photos appear alongside your apps but ruins it by changing the photo randomly every hour without your input. While nothing can be done with the Photos widget, there is a way to get the pictures you want to see on your home screen.

How To: Play Hot and Cold

Looking for a fun, educational game to play with your children? How about a game of "Hot & Cold"? Played indoors or out, this game helps children refine their listening skills and learn the idea of opposites.

How To: You Need a DAC to Enjoy Apple Music's Hi-Res Lossless Audio — Here Are the Best Options

On May 17, Apple announced that Lossless Audio playback for Apple Music was finally coming to subscribers in June. The long-awaited option will let users stream songs at a much higher quality than ever before. Still, in the fine print, Apple noted that you wouldn't be able to listen to the best sound quality — Hi-Resolution Lossless — on your iPhone without a DAC.

How To: I Tried 5 Different Pomodoro Apps Over 5 Days — Here's Which Helped Me Get the Most Done

Procrastination is an ugly beast. At first, it seems so innocent to spend five minutes checking Reddit or Twitter. You'll get started on work right after. Next thing you know, it's 1 a.m. and that paper is due in seven hours. Before you start another YouTube video, know you don't have to be like Spongebob. You can be like me, taking control of your productivity with the right app.

How To: Pick a Brinks number lock easily and quickly

If you've forgotten your combination, or for some other reason want to get past a Brinks number lock, this tutorial shows you how to do it. All you need is a bobby pin. Slide the bobby pin down towards the lock wheels. Then spin the wheels slowly, from top to bottom. As you spin each wheel to the correct number, the bobby pin will slide down a little more. And once the bobby pin is all the way down, not only have you unlocked the lock, you've figured out the combination!

How To: Update Your iPhone's Lock Screen with an Attention-Grabbing Note, Reminder, Warning, or Other Custom Message

There's a lot you can customize on your iPhone's Lock Screen — wallpapers and photos, widgets, the display mode, notifications, and even the time's font and color. But there's another feature that lets you add custom text for whatever you want, whether it's an inspiring quote, a reminder, a warning to anyone who dares touch your iPhone, or even just your name.

How To: Identify Fake Ray-Ban Wayfarer Sunglasses

How can you tell if the pair of Ray-Ban Wayfarer sunglasses that you are about to buy online are not a fake? Follow these 9 simple steps to verify the authenticity of your purchase. Always ask the seller to use the youVerify app prior to purchase. It's Smarter Selling & Safer Shopping.

How To: Measure the volume of a balloon

Here we will demonstrate how to measure the volume of a balloon. A balloon is not a straight edged polygon shape, usually, so the mathematical equations get that much harder, on the flip side, it may be a spherical or ovalish shape, but measurements with math alone are detrimental due to the uneven sizes of the balloon. Here is how to do it properly. You will need a bucket, preferably, to hold water, a larger container than your original bucket, and a measuring container. Place the bucket ins...