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How To: 5 Must-Know Tips for Not Getting Scammed on Craigslist When Buying or Selling

Craigslist is probably the greatest site ever created, and I'm just talking about it's classified section, both awesome and amazingly creepy. Seriously, spend 20 minutes scrolling through the personals and you'll never want to take your eyes off the screen. But I digress—Craigslist is also one of the most convenient places to buy and sell pretty much anything you can think of. I've used it to buy my bed, my old bike (which was stolen!), and my couch. And while Craigslist is great in many ways...

How To: Do pushups on your coffee table

Rick Pitts takes us through how to do a push up using a coffee table. First, he starts by doing a push up for shoulders and triceps. You do this by placing your hands slightly wider than shoulders with fingers pointing forward. Keep your elbows near body as you lower yourself towards the table.

How To: Land a Nitro RC plane

First of all you have to loose the altitude by taking a circle or two around in the air. On the final turn make a good straight approach to runaway and don't use too much ‘ailerons’ then. Just use the controls ‘rudder’, ‘elevator’ and ‘throttle’. Also watch for the cars or the traffic where you are going to land. Keep constant low ‘throttle’. You have to maintain good ‘idles speed’. You might want to adjust and remember the trim settings. After touch down, don’t pull on elevator. Just cut the...

How To: Find the antiderivative of a function

This video shows you how to find the antiderivative of a function. By definition, the F(x) is an antiderivative of f(x) means F’(x) = f(x). The small f is a derivative of the capital F, and the capital F is an antiderivative of the small f.

How To: Change the oil on a Vespa scooter

Saving money during this tough economic period is more important than ever, especially when it comes to servicing your vehicle. So in this 2 part video tutorial, you'll find out one way you can keep your wallet fat, by learning how to change the oil to your Vespa scooter.

How To: Calculate variance and standard deviation using Excel

This video shows the method to find the variance and standard deviation using Excel. The variance shows the variability of the data points from the median. We find the difference of the median and the mean. We write the formula using '=' sign. The median and data points are put in it by selecting the appropriate cell. The median is made an absolute constant by pressing the F4 key. This is squared by using '^2'. This is multiplied to the frequency using '*'. The result is found for all the dat...

How To: Tie a single-strand ringbolt hitch

JD of Tying it all together, is the instructor. He has many instructional knot tying videos. This particular video is focused on tying a single strand ringbolt hitch, A.K.A. Coxcombing. This was a common knot used by sailors to decorate items and parts of their ship. However, actually creating this tie is much easier said than done.

How To: Detect the symptoms of postpartum depression

It's not unusual to feel a little down after giving birth. You've been through a major life event, and your mind and body are recovering. Postpartum depression is more serious than the typical “baby blues” that can occur after childbirth. Learn how to identify this condition so you can treat it and spend more time enjoying your baby.

How To: 11 Tips for Preordering an iPhone XR, XS, or XS Max Before They Sell Out

Apple's new iPhone XR, XS, and XS Max are sure to be hits this year. Of course, that means plenty of hungry customers are looking to sign up for a model once preorders begin on Friday, Sept. 14, for the XS models, and Oct. 19 for the XR. Luckily, there are preemptive actions you can take right now to avoid waiting outside an Apple Store overnight or getting kicked out of the preorder queue online.

How To: Demonstrate Newton's law of inertia

This short video clip shows seven demonstrations of Isaac Newton’s first law of motion– the law of inertia. Newton’s law of inertia states that objects moving at constant velocity will continue moving at constant velocity, unless acted upon by an outside unbalanced force. Six of these demonstrations (excluding number six) are from Tik Liem’s book Invitations to Science Inquiry.

How To: Permanently Disable the 'Software Update' Notification on Your Samsung Galaxy — No Root Needed

Updating your Galaxy to the latest software version is optional, but you wouldn't know that from the persistent notification and status bar icon that are constantly reminding you to. Thankfully, you're just an app away from hiding these eyesores without the need to update your phone.

How To: See if Your Phone Has A/B Partitions for Seamless Updates

If your phone has an A/B partition layout, there are two virtual hard drives that each contain a copy of Android. After every restart, it picks a partition to boot from, then the other lays idle. The idle partition can be overwritten with a new copy of the OS and it won't affect the active one. So the next time you reboot, it just switches partitions and it's as if you updated instantly.

How To: Open Your iPhone Camera to Portrait Mode Every Time

Every iPhone Apple currently sells, including the brand new iPhone SE, ships with Portrait mode, injecting DSLR-like depth effects into your Camera app. If that's the shooting mode you use more than any other, it may feel tedious having to switch to "Portrait" from "Photo" every time you open the app. But you can fix that, and there are a few different ways to go about it.