What Are the Tools Used Measure Blood Pressure

Magic Leap, the virtual-reality software group backed by Google, just released a teaser video on their YouTube channel. In a word, it's amazing. Video: . But then you think about it, and other words come to mind, like ridiculous and, well, bullshit. I mean, how can this VR tec ...more

While you may not have loads of secret files hiding on your computer, there might be one or two items that need a little extra security, like a file of website logins or a folder of risqué photos. Mac OS X does have FileVault as a good security option, which uses XTS-AES 128- ...more

Like most people who cook in a small kitchen, I'm very wary of adding anything to my drawers and cabinets unless I'm sure it's going to be essential to my cooking arsenal or that it can be used in multiple ways. Enter the potato ricer. Yes, it looks like a giant garlic press. ...more

Tagine is both the name of a cooking vessel and also the dish that is cooked within it. In fact, some might say tagines are the national dish of Morocco. These slow-cooked stews and braises, often combining meat, vegetables, spices, and dried fruits, have a character unlike an ...more

Believe it or not, you can put your money to use very efficiently in a new way: your credit or debit card can serve as a blade in desperate situations. (It might even be handier than dental floss as a brilliant substitution for specialized kitchen tools.) While I wouldn't take ...more

Before Apple jumped into the phablet game with their iPhone 6 Plus, there was the Samsung Galaxy Note series. Initially knocked for their size, the Notes slowly but surely gained popularity, thanks to powerful hardware, incredible displays, extensive features, great battery li ...more

How to make a stool from recycled wood. The rustic wooden stool l'm making in this video is dual purposed. Initially it's for a child but it can also be used as a step stool. I made this stool from hardwood fence palings but you could also use pallet wood. It's a very simple s ...more

Fifty-four percent of Americans 18 and older drink coffee every day, and why not? With 100 milligrams of caffeine per six ounces of drip coffee, it's just the morning beverage to wake you up and kickstart your day. You can feel the caffeine surge through your body like the Hol ...more

Many people drink green tea for health reasons, and it's no wonder. This beverage is a superstar when it comes to antioxidant levels, and is being studied for its potentially curative properties on multiple health concerns, whether it's staving off the aging process or fightin ...more

Airports are terrible germ-infested purgatories where people sit around for hours without Wi-Fi while they anxiously await to get wherever they really want to go. Unfortunately, there isn't much we can do about waiting, but this little Wi-Fi hack could help make the waiting a ...more

The older I get, the more my Friday nights involve watching Netflix at home with a bottle of Maker's Mark and a box of Oreos. Netflix is a big part of my life, and I'm not alone. YouTube and Netflix make up over 50% of all activity on the Internet, so it might be worth your ti ...more

About ten years ago, Western research figured out that green tea was a nutritional powerhouse. After all, in Asian countries where green tea is consumed throughout the day, cancer rates tend to be much lower, although there are probably other factors contributing to that fact, ...more

Welcome back, my novice hackers! We've done a number of tutorials using one of my favorite hacking tools, Metasploit. In each of them, we've used the msfconsole, which can be reached through either the menu system or through simply typing "msfconsole" from the terminal. This ...more

As was mentioned by the great OTW last week, TOR, aka The Onion Router, has had its integrity attacked by the NSA. In an attempt to reduce the anonymity granted by the service, the NSA has opened a great many nodes of their own. The purpose is presumably to trace the origin of ...more

How to easily build a raised garden bed out of wooden pallets for free! …Well almost free. Building a raised vegetable garden with pallets or reclaimed wood is a really rewarding experience. The garden bed idea out of pallets came about from the fact that l wanted to build a r ...more

I've never had a black eye, but I was in a car accident that turned my entire ear dark purple a few years ago. Believe me; it was enough to get more than a few funny looks. Walking around with bruises is never fun, and it's even worse when they're on your face or neck. A blac ...more

If you're going to build yourself a water gun to cool down this summer, or maybe just a useful water pump, you'll need some check valves. However, the most expensive parts of a water pump or DIY super soaker are usually the check valves. So, let's make some from scratch for as ...more

A spare key is one of those things that never seems like a huge deal until you need it. If you've ever lost your keys, had them stolen, or locked yourself out of your house or car, you know how difficult and embarrassing it can be trying to get your door open. So, how would y ...more

Welcome back, my hacker trainees! A score of my readers have been begging for tutorials on how to hack Wi-Fi, so with this article, I'm initiating a new series dedicated to Wi-Fi hacks. This will probably be around 6-9 articles, starting with the basics of the technologies. I ...more

With warm weather comes bugs, and with bugs come bites, and with bites come itches. From ticks and spiders to mosquitoes and bees, insect bites come in sundry shapes and sizes, but they all commonly pull an itchy, red reaction out of our bodies. Once a bite fires up our immun ...more

Many of us experience highly emotional "freakouts", so to speak, more often than we'd like. Weather you experience them personally, or via your loved ones, it can be very difficult to think rationally during an episode, and for some people it can take quite a while to calm dow ...more

The new Samsung Galaxy S4 may be the only phone to include temperature and humidity sensors, but your Galaxy Note 2 has a few weather-detecting features of its own. Firstly, it has a barometer, which measure atmospheric pressure that can help alert you to a possible nearby ra ...more

In a previous article, I demonstrated an Arc Welder made using parts from old microwave ovens. Video: . Here is part 1 of 2 on how that arc welding machine was made, and how you could make one too! This is the first of two parts on building it, focusing on the modification of ...more

Wondering how to get long hair naturally? How do you grow your hair? In this video Rachelle and Sam give you 10 tips to get those long locks naturally! Video: . Step 1: Practice Good Hair Habits Daily treatment to your hair; Don't brush it too hard; Harsh chemicals; and High ...more

Sherlock Holmes is one of the most famous characters in modern history, and has appeared in film more often than any other character. No less than 78 different actors have taken their turn at portraying the enigmatic deduction machine in various mediums, and each has brought t ...more

Here's how to make dry-ice at home, or wherever you feel like it! All you need is a pillow case, and a CO2 fire extinguisher. Video: . WARNING: Dry Ice is extremely cold! (-78C/-109F) and can cause instant frost-bite to exposed skin. This project should not be attempted withou ...more

Recently I was working outside forming a driveway in the rain. Working in and around the wet sand was not friendly on my tools, especially my tape measure. About halfway through the day my tape measure would need "encouragement" in order to retract to the closed postion. Not t ...more

The video featured in this article demonstrates the function and design of a powerful form of air cannon that operates using a purpose made valve that opens very rapidly. This allows for a massive amount of pressurized air to be released at once to throw a projectile many hund ...more

We see Steampunk props all the time and wonder where the maker found all their pieces. In fact, for some people it's almost like a game to examine each prop and see if they can name all of the original parts. However, for a newcomer (or a novice at prop-making), it may be rea ...more

A typical resistance spot welder can range in price from about $200-$800, but with a little resourcefulness and a bit of free time, you can make one like this for about $10 or less. Before starting on this project, there are a couple of videos you should check out, because yo ...more

In the first part of this two-part guide, I covered cutting, grooving, beveling, making holes, and stamping/tooling. I hope you enjoyed that part, because we're pushing the accelerator to the floor and moving ahead at full speed! Covered in this section will be: Burnishing D ...more

I chose to make this a Steampunk iPad case, but you can change the details and make it look as modern as you'd like. As I said earlier, Steampunks probably shouldn't buy iPhones or iPads, but if you're going to get one, you may as well make it look cool, right? The iPad pictur ...more

Say whatever you want, but Steampunk is primarily a maker culture. Consider that Steampunk has existed since the 1960s and yet more or less languished in obscurity until approximately 2005, which is when it made the leap to costuming. That costuming was what provided the leap ...more

At the recent DefCon conference in Las Vegas, researchers opened many of the top commercially available gun safes with simple tools like a straw or a paper clip, and in one case, just by shaking it a bit. The investigation began after the researchers, Toby Bluzmanis, Marc Tobi ...more