In this tutorial, we learn how to test paint for the presence toxic lead. You will first need to make up two solutions. One will need sodium sulfide and water mixed together in a small container. Then, add acidic acid and water into another container. Drop small amounts of the mixtures into containers, then add in the paint to the containers. Watch and see how the reaction of the paint is with the mixture. If you start to see a black reaction occur in the container, you will know that your pa...
This video topic was changed. It is now converting muriatic acid to reagent grade hydrochloric acid, HCL).
In this home-science tutorial from WonderHowTo favorite Nurdrage, you'll learn how to create hydrochloric acid using 140 grams of sodium bisulfate, a pH lowering compound available in most pool stores, and 60 grams of sodium chloride salt and an external heat source. Watch for a full demonstration of the process and complete, step-by-step instructions.
Watch this science video tutorial from Nurd Rage on how to make iodine from an alkali metal iodide, hydrochloric acid (HCI), and hydroxide peroxide (H2O2).
Sugar (a carbohydrate) is dehydrated with concentrated sulfuric acid. Since a carbohydrate was once considered just hydrated carbon, if you remove the water, carbon would be left over. The acid rips the water out of the sugar and the heat generated by this reaction causes the water to turn to steam. A black mass of carbon is produced.
In this video, we learn how to clean your espresso machine with citric acid. First, mix the acid up with some water in a pouring cup. Then, pour this into the machine and run water through the machine to get the boiler filled up with the acid solution. Run it out the steam wand as well so it has a chance to get into all the pipes and valves. After you have done all the steps, run it out once more with just plain water to clean it out of the citric acid taste. Then, you will be able to run the...
In this video tutorial the instructor talks about Hydrochloric acid (HCL) and how it reacts to a few metals. To try this out take 30 ml of concentrated hydrochloric acid in a beaker. You need to employ caution while handling acids, especially if you use strong ones. Now you can throw small pieces of different metals into it carefully to see how it reacts with different metals. For instance when this HCL comes in contact with metals various reaction take place depending up on the metal. Like i...
Sick of that burning, persistent, acid sensation? With a couple of easy steps, you can put your stomach at ease and boost digestive health.
Sony Corp. is working on new battery technology that the company says would have a 40% longer life than a lithium-ion battery of the same size. Sony is planning to have the higher-capacity batteries on the market around 2020.
This free video science lesson from YouTube's mrhomescientist demonstrates a simple technique for doing acid-base titration. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
Want to put some electronics into your terrain piece or diorama? LED lights are great. You can use tiny watch batteries, which are small and efficient. LED lights are cheap, they come in colours, and you can find them in all kinds of broken gadgets. Watch this instructional video to illuminate your miniature dioramas, doll houses, and miniature war game terrain.
A basic instruction for electronic enthusiasts. I use an RGB LED and a 510 ohm resistor as I may change from 6 to 9 volts later, but with my LEDs i could go as low as 330 ohms. I sacrifice some brightness for the sake of longer life. To choose your resistor, the value in ohms = voltage of your batteries or power supply / (as in divided by) the amperage that your LED needs to run.
This video shows the viewer how to correctly use acid stain to stain a floor. In the video the acid stain is applied to a floor using in a spray. This is done using a device similar to one used to apply weed killer to plants; another suggestion would be with a watering can that has an adjustable nozzle. Basically the acid stain can be applied with any device that can be used to apply the acid in a thin and even layer. This stops the acid from staining the floor in an uneven manner and helps t...
Using acid stains on concrete floors can be cheaper and easier to maintain than laying down tile on your floor. Here, Gaye Goodman shows you how to make acid stains on your concrete floor, a nice, economical way to make beautiful floors. First, you should test on samples of your floor in order to decide which color to use and to determine how the acid stain will look. After covering the bottom of your walls with painter's tape to avoid splashing, mix about 1 cup of TSP to 4 gallons of water. ...
In this Electronics video tutorial you will learn how to build and use a tinyCylon kit. The kit contains a battery pack, a PCB, LEDs, resistor, a momentary switch and a screw. The long end of the LEDs will go into the square shaped contacts. Don’t push the LEDs right up to the board. Instead, use some poster putty to hold the LEDs standing upright so that they can be bent later on. Fix all the LEDs in this manner and solder them on the other side. Then solder the leads of the battery pack. ...
In this clip, learn how to make super powerful 9 volt LED flashlights using things you most likely already have around the house. You will make these mini-lights out of things like batteries and scrap wires. So, dig around in your garage and see what you can find to get started building these useful, bright lights.
In this tutorial we learn how to take an acid and base to make salt. To start, you will first need to take an acid of your choice, this can be something like vinegar. After this, you will combine the acid with a base and then wait for it to react. Once it starts to react, gases will release from them and you will end up with some salt! Be sure to put a cap on the container while the reaction is happening. This will allow the reactions to come together and the gases to react. Have fun and do t...
Boric Acid is often used to treat or eradicate bedbugs. However, it doesn't work particularly well. It has to be ingested to kill them, but they don't necessarily consume it. There would need to be a bait that they can ingest that contains boric acid. Unfortunately, people are the bait that they respond to. Cockroaches, on the other hand, ingest it, because they clean themselves. Therefore, it gets ingested in that way.
Jagermeister, malibu coconut rum and pineapple juice will flash you back to the tropics. If you've not been, we urge you to go. But first, try a Surfer on Acid.
Biotin is a water soluble B-complex vitamin important for synthesizing fatty and amino acids and maintaining blood sugar. It's important for the synthesis of fatty acids and amino acids. Try these tips for buying biotin enriched foods in this diet and health how-to video.
Process of making Hydrochloric acid using table salt and concentrated sulfuric acid. Consentration of the syntethised acid was 2.7M or 10%. Music: 1200 Mics - Rock into the future.
For most people, the battery life on a DSLR is more than sufficient, but if you want to do a really long exposure or time-lapse, one charge might not last long enough to get the shot you want. You can always connect it to an extension cord to charge while you shoot, but that can be really annoying to work around.
Obviously, millionaires like me don't really have to worry about an empty wallet, but for the rest of you out there, having no cash when it comes time to paying a bill can be excruciatingly embarrassing.
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. They will help you avoid pitfalls and get your project up and running fast. In this DIY episode, see how to etch a printed circuit board (PCB) with acid.
A step-by-step how-to video from grooveshark.com explaining how to make your own circuit board or PCB. It's a simple, but long process for copper etching a printed circuit board, so pay attention and pause when needed.
Stop bemoaning your blotchy complexion and start evening it out instead, no matter your specific skin complaint.
This demonstrates how to wire a 555 timer chip for Pulse Width Modulation. Items used: solderless breadboard, 555 chip, 510 ohm resistor, 100k ohm variable resistor, 1 RGB LED at 20-25ma, wires, and 9v battery. And those vertical lines are what i mean in terms of what you can see only on the camera. You can see the led light of course without the camera.
To make a glowing ice bulb, like the one in this how-to video, you need LEDs, batteries, wire, a balloon, and electrical tape. First, you connect the led to the wires. Then, you put the LED in the balloon, fill the balloon with water and freeze it. Once frozen, remove the balloon and attach batteries. Watch this video tutorial and learn how to make a glowing ice bulb from a balloon.
What is MnSO4 and MNO2, anyway? They are they molecular formula for Manganese Sulfate and Manganese Dioxide. And you can make one from the other. But how?
Watch this science video tutorial from Nurd Rage on how to make fire 4 ways without matches by using chemistry, without matches or lighters.
You've probably seen the classic fruit battery science experiment a thousand times, but I doubt you've ever seen it turned into an art project! Photographer Caleb Charland uses everyday objects like apples, coins and vinegar to create makeshift batteries, then takes these gorgeous long exposure photos. For the apple tree photo, Charland got about 5 volts for every 10 apples, so he had to wire 300 apples to power the lamp for several hours. He used a zinc-coated galvanized nail and copper wire...
What a unique bow. Your gifts will be beautiful under the Christmas tree. Materials you will need are: plastic wrap, hot glue, LEDs, scissors, pliers duct tape, glue gun and glue, toothpicks and 3 volt batteries. First you take the plastic wrap and cut it about 5 times the size your bow is going to be. Take the end and push it together. Now make one side of the bow, push together, and make the other side of the bow. Keep going back and forth until the plastic wrap is at the end. The left over...
We've all heard of the power that red wine holds. It can help lower risks of heart disease, boost your brain power, and can even recharge your car battery. But last year, a group of Japanese physicists made headlines when they announced that they could induce superconductivity by soaking metals in red wine. But why red wine?
This is a great video to learn how to acid stain a concrete floor.
It is a tutorial that explains the basic guidelines of Nikon D40 and D40x cameras. This enables everyone to take photographs successfully and prepare the camera for use. Attach the lens of the camera by rotating towards the right; make sure that no dust gets into the camera. Then remove the protective cap from lens and align the white dot on the lens with the white dot on the camera's body. Turn to the left until it clicks in to place. First, we must charge the camera's battery; when the LED ...
It’s just a few steps to make a toy motor. Take a battery of any brand, then take two safety pins. Attach them to both the sides of battery as they act as positive and negative. Then take a magnet, keep it on the battery. Now take a strip, which is rolled into a circle, and take two leading wires from it. Then keep this strip in between the safety pins and just start it up by rotating to one side. Then leave it aside, it rotates continuously.
If you ride your bike at night frequently, you've probably had at least one close call with a car, pedestrian, or some other moving obstacle because of reduced visibility. Not only is it dangerous to ride at night without lights, it's illegal in a lot of places. Make sure no one can miss you with these DIY handlebar lights from Becky Stern at Adafruit. What You'll Need
American Bartenders School shows how to make a Surfer on Acid mixed drink cocktail recipe. You will need Jagermeister, coconut rum, and pineapple juice. Learn how to mix a surfer on acid cocktail by watching this video beverage-making tutorial.
Is the battery on your Motorola Droid 3 getting drained fast? If you're tired of running out of battery life when using the Verizon Wireless smartphone, try out the Battery Manager located in the settings menu on the Android device. The utility features several different profiles including "maximum battery saver" and "nighttime saver." By changing a few options on your smartphone, you can drastically increase and improve the battery life of the device.
This tutorial shows you how you can use two features of Sony Acid - loops and beatmapping. These can give you a good deal more versatility, especially when you are working on a remix. This tutorial shows you how to use both.
