Lead Acid Batteries Search Results

How To: Polymerize an alkenes with an acid in organic chemistry

In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to handle the polymerization of an alkene with an acid in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Hollow out a penny

In this video, we learn how to hollow out a penny. First, you need pennies that are dated after 1982, muriatic acid, a plastic container, and sandpaper. First, rub the edge of the penny on sandpaper until the silver color is exposed. Do this on two pennies, then place them in the plastic container. Now, while wearing gloves, pour the acid into the container so the pennies are completely covered. Now the pennies will start to bubble, leaves these in the acid for around six hours. Next, pour th...

How To: Do an acid grind on rollerblades

Kyle of Aggressivemall teaches you how to land an acid grind with aggressive skates.You should first go to your favorite curve to practice it as a stall. When doing an acid grind, your soul foot (or the one you use for balance) is placed along the grind bar and the other foot is placed like in a backslide. Once you get comfortable with the stall, you can start practicing the grind itself. For starters, you should approach the grind bar with a slight angle and moderate speed. While grinding, b...

How To: Use gravimetric analysis to analyze sulfuric acid

This video is based on a chemistry experiment. This video is going to explain to us how to use gravimetric analysis in order to analyze sulfuric acid. This experiment should not be done for those who do not have a fundamental knowledge of chemical compounds, reactions and chemical safety. He explains first what he is about to do before he does it. Sulfuric acid is acidic and can be toxic if ingested or in contact with the eyes. Take extreme care with this experiment.

How To: Mix a Captain Morgan on Acid

Here is a drink which contains one of the most tasty beverages on the planet: Spiced Rum. Add to that, some coconut rum and a bit of Blue Curacao and a splash of Pineapple juice and you've got a great after dinner beverage.

How To: Make flash paper the easy way

Want to show off using the fancy flames of magicians? This video will show you how to easily make flash paper. To normally make flash paper is a complicated process involving sulphuric acid and nitric acid.. here's an easy way using toilet paper, an old flare and a camping stove.

How To: Create an acid-base indicator using purple cabbage

Purple cabbage is a natural indicator and this video teaches you how to easily prepare purple cabbage in the comfort of your own home to be used as an acid and base indicator. Take one leaf of your purple cabbage, tear it into smaller pieces and place all the pieces into a beaker or bowl of boiling water for an hour. Collect the liquid from your mixture into a bottle. You’ll notice that the liquid is now dark blue or purple at which point is neutral. It is ready to be used as an indicator. ...

How To: Solve the acid cube Square One puzzle

Watch this video tutorial to see how to solve the acid cube Square One puzzle. There's a few things you should know before even trying to solve the Square-1 puzzle, which is knowing how to solve the Rubik's Cube. Then you need to know the notation for rotating the Square One, also known as Back to Square One and Cube 21. Next you need to know a few algorithms and you're halfway to solving the challenging puzzle.

How To: Make an LED light brick

This video by makemagazine demonstrates a weekend project on how to make a LED light brick. The materials required for this project are listed on the link to the make magazine page in the info box or it can be orders as a kit from the make magazine store. Take the PCB (printed circuit board) and first solder the Resisters and Capacitors as shown. Next test the LEDs and separate them using a button cell batteries. Solder the LED, PIC micro-controller, DC power connector and tilt switch followi...

How To: Make home made night vision goggles

OK master spy, it's time to get your lurk on. If you're going to be spying, you'll need to be able to spy at night. This video will show you how-to make your very own night vision goggles so you can keep up with your mark well after the sun goes down. You'll need a 9V battery, an infrared LED, some wire cutters, a small screw driver, and some wire with a battery clip. You can easily find your needed infrared LED in any old TV remote control. Try it, and make some home made spy gear today!

How To: Use inexpensive apple cider vinegar to cure acne

Acne sucks, and if you have it then you've probably spent hundreds of dollars on salicylic acid face washes, benzoyl peroxide moisturizers, and stinging alcohol toners. But to what end? Most of the products you buy at the drugstore dry out your skin too much, especially when used in conjunction with one another. This leads to oil overcompensation and even more acne.

How To: Take apart an iPod Nano 3rd generation for repair

In this tutorial, we learn how to take apart an iPod Nano 3rd generation for repair. First remove the back casing using a guitar pick. Next, use a flat tool to lift up the battery carefully and remove it from the casing. You will see three wires that lead to the launch board, which are soldered into place. Now, use the flat tool to remove the back of the battery casing from the device. Now, remove the logic board by removing the 6 small screws inside of it. Next you will remove the LCD by lif...

How To: Use the SD-8A battery pack for the Nikon SB-800

This video demonstrates how to use a Nikon SD-80 Battery Pack with a Nikon SB-800 Speedlight. The first step is to identify the different power adaptors on the ends of the cable leading to the battery pack. This pack is powered with AA batteries. Remove the outlet plate on the SD-80 and insert the power cable into the SB-800 Speedlight. Then attach the communication cord to the Speedlight. Now place the Speedlight in the hotshoe of the Nikon camera and let the battery pack dangle or attach it...

News: Wine Research Study Reveals How to Make Better Booze by Dosing Yeast with Nitrogen

Ah, wine. The bouquet fills your nose. The rich finish fills your mouth with soft flavors of oak and raspberries. The wine warms your belly and soothes your mind. Yeast and their biochemical factory help create this feast for your senses. Thanks to a research group from France, we now have a little more information on how that process works and a little more appreciation for yeast's contribution.

How To: Install LED gauge lighting in a Volkswagen MKIV

This detailed video series shows you everything you need to do to install an LED lighting gauge cluster in your Volkswagen MK4 (Jetta, Gulf, or GTI). Part 1 starts with disconnecting the battery, Part 2 has you remove the interior cluster, Part 3 you disassemble the instrument cluster, Part 4 covers LED ring installations, Part 5 goes over the interface removal, Part 6 covers the gauge face installation, Part 7 is 6 videos long (video 7 to 12) covering preparation for installing the cluster, ...