In order to make manganese dioxide electrodes, you're going to need cobalt nitrate and manganese nitrate to do it. Making cobalt nitrate is fairly easy, but making the manganese nitrate is a little more complicated. But not impossible.
Various electrochemical reactions requires that anodes do not degrade when used. Carbon is cheap, but degrades easily and platinum is extremely expensive. In a previous video, you learned "How to make cobalt and manganese nitrates", and you saw that titanium could be used as a cathode, but not as an anode due to an effect called passivation.
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?
In a previous video by NurdRage, he showed you how to make manganese sulfate ("How to make MnSO4 from MNO2 (two separate ways)"), but there can be situations where the iron in the precursor would carry over and contaminate the product. Recrystallization doesn't work for this high level of contamination, so a different approach is needed.
This video speaks to everyone who has ever bought anything online, or in fact, anyone who has ever bought anything period. How do you know what you're getting is genuine? Is it a fake product? Is it stolen goods? Is it impure?
Watch this science video tutorial from Nurd Rage on how to get zinc, carbon rods and MnO2 from lantern batteries. They show you how to get zinc, carbon electrodes and manganese dioxide from a lantern battery.
Watch this science video tutorial from Nurd Rage on how to make potassium permanganate with Dr. Lithium with potassium nitrate and manganese dioxide.
This video tutorial is in the Education category which will show you how to make manganese heptoxide (permanganic acid). This procedure is extremely dangerous. Manganese heptoxide is an extremely powerful oxidizing agent. It has the ability to set fuels on fire from mere contact. Get an old dish and put a spatula full of potassium permanganate on it. Add a few drops of concentrated sulphuric acid. A green liquid is formed which is the manganese heptoxide. Now you can add any fuel like butanol...
Watch this science video tutorial from Nurd Rage on how to make a test tube thunderstorm. They show you how to make the thunderstorm in a test tube using alcohol, sulfuric acid and potassium permanganate.
There are many health benefits when eating strawberries. They are an excellent source of Vitamin c, manganese, dietary fiber, and iodine. Learn the words of your favorite fruits & vegetables with help from these short Learn Polish videos. In this language instructional, learn how to pronounce & say the word "strawberry".
Belly casts are the new keepsake for pregnant women that last and display well; learn how to cast a pregnant belly in this free video series on body molding tips.
This medical how-to video demonstrates how to perform a cast removal with a cast saw. Follow along and learn how to remove a wrist and forearm cast. The cast saw may appear dangerous but it is actually pretty safe to use. A cast should only be removed when the attending doctor deems it safe to do so. Note that this casting procedure is intended for medical professionals.
Learn all about the recent Hollywood pregnancy trend of belly casting. The Pregnancy Show gives you an exclusive look at how to make your own belly cast.
Watch this instructional knitting video to knit a long tail cast on. Long tail cast ons are probably the most common knitting cast on that give your edge a nice, smooth finish. Make sure you have plenty of yarn for your cast on. Your knitting will be as wide as your cast on row if you do not apply any shaping, such as increasing or decreasing. The long tail cast on is probably the most common knitting cast on method.
This instructional video will show you how to cast on stitches for knitting using the "backwards loop" method. This is the easiest cast on to learn and master. Once you cast on, you can begin your knitting projects. This is also known as the "E wrap cast on" and "single cast on".
This is a 3 part series on the basics of fly casting. In this how-to Tim Landwehr of Tight Lines Fly Fishing Co. will help you better your casting. Casting is a very important part of fly fishing. When you learn to cast a fly, it can make or break your day with fly fishing. You need to learn to do this properly in order to catch any fish.
Chlorine gas is a very useful oxidant, which was first introduced as a toxic weapon by the German Army. Even today, it's still used as a weapon, most recently in the Iraq War by insurgents. But chlorine gas has more useful (and less lethal) applications, and if you want to learn how to make some at home, NurdRage has the answers.
Are you 90% done with your lace shawl but have no idea how to finish the edges so they look rounded, complete, and not raggedy? Then a tubular cast-on may be just what you need to finish up the hems of your project in a professional manner.
C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.
Watch this science video tutorial from Nurd Rage on how to make fire 4 ways without matches by using chemistry, without matches or lighters.
The long-tail cast on is one of the most common methods for casting on stitches. It is stable, neat and easy — once you get the hang of it. This knitter's guide walks you through the entire process. For detailed, step-by-step instructions, and to get started using the long-tail casting method yourself, watch this free video knitting lesson.
A Food Network chef gives the low down on seasoning a cast iron pan. Cast iron pans need to be seasoned before use because it will make your pan stick resistant and last a lifetime. Another plus of seasoning your cast iron pan is that you will not have to use any additional oil when you are cooking. The cast iron is a great heat conductor and the whole pan heats evenly instead of just in spots. To season a cast iron pan you will need to take a neutral oil, vegetable oil works fine, and rub it...
Check out this instructional fishing video with Dave "Nugget" Downie that demonstrates how to throw a cast net. Throwing a cast net may seem complicated, but with a bit of practice you'll be able to throw with ease. Just follow the instructions in this fishing tutorial video to learn the proper techniques for throwing a cast net. Start practicing and reel in the big fish!
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!
Forget expensive steadicams! Save money on your film budget and make a DIY steadicam that's almost as effective as the real deal. Chappy shows you how to make one for only 30 bucks! You can make this steadycam with parts from your local sporting goods or hardware store.
Pay attention to this knitting demonstration video and learn how to do the e wrap cast on. This is not a good knitting cast-on for long lengths because it is not possible to control the tension well when knitting the first row, resulting in a loopy, uneven edge.
In this video, you'll learn how to knit a picot cast off, or a picot bind off from expert knitter Judy. This sort of casting off is great for things like baby blankets, and you can expand your repertoire with the picot cast off to other projects.
Hard edged cast-ons in knitting are difficult to remove, so it's important to also know how to complete loose cast-ons that easily remove themselves from your knitting project. Loose cast-ons allow you to hold a knit in place so you can return to it later (so, for instance, you want to knit the sleeve of a sweater first and want the chest area, which you are currently knitting, to stay in place).
Need to know how to cast off? In this free video crafts lesson, Internet crocheting superstar Mikeyssmail offers advice on how to cast off of a loom when knitting a shawl or anything else. For more information, including detailed, step-by-step instructions, and to get started casting off in your own projects, take a look.
Cast-iron provides one of the best cooking surfaces for any cooking. Learn how to season it to perfection.
This instructional how-to video demonstrates how to apply a volar slab cast to a patients forearm. Volar slab casts are used for forearm and wrist injuries. Follow along and learn how it's done. All you need to apply a volar slab cast is: web roll, rolled gauze, a bucket of warm water, and plaster slabs.
This medical how-to video reviews the basics of casting and splinting procedures. Follow along and learn how to splint and cast the wrist and forearm in case of a broken or fractured bone. A splints and casts can be placed in many different positions and aid in stabilizing injuries. Note that this medical procedure is intended for medical professionals.
This instructional knitting video will teach you how to do a knitted cast on. The first step in all knitting projects is casting on. By knitting into each stitch and slipping the stitch from one needle to the other, you can knit a sturdy and even cast on. Knit as many loops as you need to begin knitting your scarf, hat, sock, sweater sleeve, mitten, etc.
Watch this instructional knitting video to knit a backward loop cast on. Your knitting will be as wide as your cast on row if you do not apply any shaping, such as increasing or decreasing. When knitting the backward loop cast on make sure to leave the stitches a little bit loose so it's easy to knit your first row.
Casting a fishing rod can be tricky, and we've all had knots in our spools. This fisherman will show you how to adjust your reel so that you never get knots again. Hopefully this how to video will help you cast a fishing rod like an expert.
Watch this knitting instructional video to learn how to do a knitting provisional cast-on. A provisional cast-on is usually worked in a contrasting waste yarn so the cast-on stitches can be easily removed later. The live stitches are then recovered so you can knit down from that point without the joining line you'd have if you picked up stitches along the edge. There are several provisional cast-ons; this is the one I like the best, because I find it to be the easiest to work. You'll need a c...
The Turkish cast on is a great technique for avoiding the bulk of traditional seams. This video knitting tutorial shows how to knit a Turkish cast on, specifically for rounded doll accessories. Learn how to knit a Turkish cast on with double point needles by watching this instructional video.
This video shows how to cast off in knitting. Casting off is also known as binding off. This video demonstrates the basic cast off method, which is fast and easy to work and produces a firm edge to the knitted fabric.
Float fishing is one of the most popular types of fishing, and the art of casting the pole properly as a part of it is much debated. This video features a professional fisherman demonstrating the techniques he using for casting properly while float fishing. Master these and you are sure to catch more fish and have much more enjoyable days on the water.
This excellent detailed video demonstrates how to create rigid molds with a fast cast urethane. Ideal for smaller models/molds with a flat side, fast-cast urethanes are widely used for their ease of use, low cost, and quick de-mold times. However, their use requires careful application of release agents. This process can be used in automotive, mechanical, fine art and film special effects uses.
