How To: Make nitric acid
Watch this science video tutorial from Nurd Rage on how to make nitric acid. They show three ways to make nitric acid based on two different chemical approaches, both of which can be done using easily accessible materials.
Watch this science video tutorial from Nurd Rage on how to make nitric acid. They show three ways to make nitric acid based on two different chemical approaches, both of which can be done using easily accessible materials.
The ready position is the position you want to be in when you're waiting for your opponent to hit you the tennis ball. It's the foundation for tennis movement in general. From this position you can employ the various footwork patterns that let you move around the tennis court correctly. The ready position is very similar to an athletic stance in basketball. Your feet are a little bit wider than shoulder-width apart, your knees are slightly bent and the weight should be on the balls of your feet.
Footwork is probably the most important part of tennis. Unfortunately, it is also one of the most underrated areas of the sport. Learning to move around the tennis court correctly is EXTREMELY important. Correct footwork lets you use correct stroke mechanics when you hit. Correct footwork is what typically sets advanced tennis players apart from everyone else.
Bringing your back foot up after you hit the tennis ball puts you in position to recover back to the middle of the tennis court. The key, as we explain in this video, is to get your body facing the net after you hit (similar to the ready position). This will let you side shuffle back to the middle of the tennis court.
Air conditioning systems are cold and wet and make great breeding grounds for bacteria and mold, and adding a nasty odor to the air coming out of the vents.
Master Gardener Rosamarie Maddox asks John White, Doña Ana County Extension Agent, about problems facing her pecans, grapevines, and native shrubs. An unidentified insect found on her pecan tree is identified by John White as a Twice Stabbed Ladybug. This ladybug is a useful insect that often over-winters on the tree and helps takes care of the aphid problems faced by pecans. Pink fuzzy coating on pecan nuts is also brought up. The coating is normal for pecan and contains bitter tannin. Too m...
The best way to fish is with live bait, but buying bait can be expensive and it isn't always guaranteed fresh. Once you learn how to cast your own bait you will be able to catch large amounts of bait fish on your own, and cut out the middle man. Happy fishing!
Systm is the Do It Yourself show designed for the common geek who wants to quickly and easily learn how to dive into the latest and hottest tech projects. We will help you avoid pitfalls and get your project up and running fast. Search Systm on WonderHowTo for more DIY episodes from this Revision3 show.
Solid-state LiDAR is cheap, robust, and compact in size — this is why the device is seen as the LiDAR of choice for future high-volume production of level 3 and level 4 cars.
The problem with HIV is that it attacks and kills the very cells of the immune system that are supposed to protect us from infections — white blood cells. But a new technique, developed by scientists at The Scripps Research Institute (TSRI) in La Jolla, California, offers a distinct HIV-killing advantage.
Welcome back, my greenhorn hackers! My preference for Linux as a hacking platform is well documented, and I have even created a series of tutorials to train new hackers. Without being proficient in Linux, you can't really call yourself a hacker.
Babbabooey begins his master piece by introducing the ingredients that are required to make St.Louis style BBQ ribs. He starts with two packages of ribs that contain 6 ribs in each package. He then goes on to describe the special BBQ sauce he uses, and includes the ingredients used to make that sauce. Utensils are needed such as a machete, and two types of probe thermometers. After chopping an onion he mixes it with the BBQ sauce and pours the mixture into a small bread tin.
How to change the outdrive gear fluid on your boat.
Are you ready for the last boss fight in the Xbox 360 game Darksiders? Once you fight Abaddon in the Destroyer, you win, unless you lose. You'll now have to face Abaddon in his "normal" form. He is a powerful swordsman so you'll want to take the defensive route as he can block most of your basic attacks. Instead of attacking him, be patient and stand near him. You'll need to perform a Block Counter but simple tapping the Dash button (without hitting the directional stick) the moment before Ab...
Not every enemy is critical in this mission in The Saboteur for the Xbox 360, just the ones with red markers over their heads. The third mission in Act 3: Déjà Boom is when Skylar is waiting for you in the northeast. When you land, grab the Tommy gun, the ammo, and then get in the flatbed nearby. Drive and just swerve around everything you can until you smash through the gate. For more info, watch the whole gameplay.
K'NEX is one of the most popular construction toys on the market, right next to Lincoln Logs and LEGOs, but what makes K'NEX stand out is the fact that children can build mechanically derived toys. Instead of blocks or little logs, kids use interconnecting plastic rods and connectors, which give them tons of contraptions to build and play with. Today, K NEX has even more possibilities with wheels, pulleys, panels and flexi-rods to make amusement park roller coasters, airplanes, animals, bikes...
Radio communication is one of the oldest and most effective means of communication via technology, so it's no wonder it's still a popular way to send and receiver signals, especially on the water. Having a Marine radio can be critical when operating a boat on any type of water. There are many uses for a Marine radio, but the most important is to send a distress signal — here’s how to do it.
In this how to video, you will learn how to make your own compost heap. Compost is nature's own living fertilizer. It can be purchased at stores, but you can also make it yourself. This can be started in any weather and at any time of the year. Tree trimmings, grass clippings, food scraps, coffee grounds, saw dust, and even dryer lint can be used for compost. Any mix can be used. The critical ingredient is oxygen. Coarse and soft mixes should be used. Water is also important. You want living ...
This wrap is intended to support and stabilize the ankle joint. Supplies needed include a 1 - ½'' – 2'' adhesive tape, pre-wrap, and heel and lace pads. Apply heel and lace pads at high friction areas, including the distal aspect of the Achilles tendon, and the dorsal aspect of the ankle joint. Apply under-wrap to secure them in place. It is critical that the foot remains at a ninety degree angle for this portion of the procedure. Apply an adhesive tape anchor strip at the lower leg, approxim...
Wearing a seat belt while in a car can save your life. Do you know how to adjust and properly use it? Learn how to drive safe and use seat belts properly (Ford DSFL). A professional driver explains how to fasten your seat belt properly.
What do you know about braking in an emergency situation? If you're not even sure what kind of brakes you have on your car or truck, then you need to do some research. Learn how to drive safe and deal with emergency stops (Ford DSFL). A professional driver explains the differences between braking with Antilock Braking Systems (ABS) and standard braking systems.
Driving a vehicle is a big responsibility and road safety is paramount. Improve your driving skills by using your most important tool -- your EYES! Learn how to drive safe and always look ahead (Ford DSFL). A professional driver explains why it's important to look where you want to go, not at an obstacle, when you're driving.
When you're on the road, you want to be in control of your vehicle. The only way to be in control and improve your driving skills is by having good hand positions and correct and comfortable seating position. Learn how to drive safe with a good hand and seat position (Ford DSFL). A professional driver gives this important tip about seating position.
New windshield wiper blades can be tough to install, but maintaining them is critical for safe driving in bad weather.
Learn how to write a grant proposal. If your organization has come up with a great idea that needs money to get off the ground, you'll need a great proposal. Here's how to write one.
Make the most of your YouTube videos! Watch this video tutorial to see how to make the most out of the YouTube player by uploading widescreen video. Here's how to prepare your videos for widescreen viewing:
A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.
If all things go well, you'll only have to take your road test once. That's the goal: to ace your test on the first try and then start driving on your own. Granted, it's a nerve-racking experience, but keep in mind that the California Department of Motor Vehicles wants you to pass. So much so, they give you the examination answers ahead of time! All you have to do is study.
Apple found itself in serious trouble last week when a teenager discovered a critical FaceTime bug that threatened the security of nearly every iPhone user. The bug enabled a user using Group FaceTime to access either the microphone or the camera of a recipient before they answered the call. According to Apple, the issues have been fixed in an iOS 12.1.4 update released Thursday, Feb. 7.
Though not as flashy as Face ID and other features, Low Power Mode has become one of the unsung heroes of iOS. When you're away from a charger, enabling this feature will dial back performance and networking to help you eke out up to three extra hours of battery life. If your device is jailbroken, you can even automate Low Power Mode to ensure your battery never dips to critical levels while out and about.
In a leaked company memo, Snap CEO (and NR30 member) Evan Spiegel has made it clear that the future of the company lies not only augmented reality but also hardware that enables those AR experiences.
Buying an unlocked phone is usually the correct move. By doing so, you bypass a lot of bloat that carriers put on your phone, and you can also use that phone with another carrier should you decide to switch to a new one. However, a lot of carriers won't give unlocked devices access to their visual voicemail apps. For that, there's Google Voice.
How can bacteria that lives in the throat of 10%–35% of people—without causing an infection—cause life-threatening meningitis and sepsis in others?
If you ever need to make calls and/or send texts to the U.S. or Canada from abroad, or even just receive them from those locations, there's an easy way to do so without breaking the bank. In fact, it's free, and all you need is a smartphone, computer, and some free tools.
Welcome back, my budding hackers! People often ask me, "Why are you training hackers? Isn't that illegal?" Although I usually give them a short version of this post, there are MANY reasons why YOU should be studying hacking.
Welcome back, my greenhorn hackers!
Welcome back, my aspiring hackers!
Learn how to save money n clothes with these fantastic tips! 1. Before you go shopping, you must get to know your body shape, colors that suit you, and be aware of your style of life. 2. To determine your body shape, and which things actually suit you and make you look good, try on as many clothes from your friends or in the shops as you can, and be critical of your look. 3. To determine which colors suit you, find a book on the internet or in the library. (shades should complement your skin ...
The great thing about burritos is that you can make them to your personal taste and fill them with whatever you like. Today, we are going to fill the burrito with a few of my favorites. We have a base of black beans, rice, some sautéed green pepper and red onion, grated Monterey jack cheese, a little bit of sour cream and some salsa. But again, the fillings are versatile, it is the assembly of the burrito itself that we are going to concentrate on. he first key to making a great burrito, and ...
If you're a beta tester, you know Apple released iOS 13.3 this week, bringing with it stability for multitasking as well as minor changes throughout the OS. It seems Apple doesn't want the rest of us to go without this critical patch, as the company releases iOS 13.2.2 today, Thursday, Nov. 7.