Concentrated Search Results

How To: Do a concentrated hip extension

In this video, you are shown, you are shown how to properly do a concentrated hip extension. You are instructed to lay on the floor, supported on your elbows. With one knee on the floor, you are then told to life the opposite leg off the floor, completely extended, to form a horizontal line from the floor. While lifting the leg to about 40 degrees, you are to contract the muscles of the same glutes at the same time. After, return to the starting position, bringing your leg to form the horizon...

How To: Do a concentrated bicep curl exercise with dumbbells

In this free video exercise lesson, you'll learn how to do a seated concentrated bicep curl weight lifting routine with free weights. With weight lifting, as with any physical fitness system, a basic mastery of proper technique is essential for both maximizing the effectiveness of your workouts and avoiding accidental injury. For more information, and to get started using this weight lifting exercise yourself, watch this handy home-fitness how-to.

How To: Cook with concentrated orange juice

Using frozen concentrated orange juice to cook with is a great way to add vitamin C to your meal and you can marinate your meat with it. By using the frozen juice it helps you save money and space in your freezer. Not only can you use it for meats, you can make desserts and use them with your veggies.

How To: Create a Miniature Fireworks Show by Burning Steel Wool & Potassium Chlorate

We've all seen some the awesome fireworks that steel wool can produce, either in person or on video— and as simple as it is, we just can't get enough of it! It's really basic chemistry, but sometimes simplicity can amaze more than complexity. And in this video, our favorite web scientist, NurdRage, battles the burning flame of one of the world's most common household item, i.e. the Brillo Pad. Plus, there's an even bigger reaction towards the end with an added chemical compound).

How To: Make hydrazine sulfate with the hypochlorite and the Ketazine process

Hydrazine sulfate has many uses, but most notably, it's been used under the trade name of Sehydrin, a treatment for anorexia, cachexia and some even think cancer. But for we DIY chemists, it's useful for something entirely different— as a substitute for the more dangerous pure liquid hydrazine in chemical reactions. NurdRage shows you how to make it via some hypochlorite and the Ketazine process.

How To: Make manganese dioxide electrodes

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.

How To: Make aluminum nitrate nonahydrate

Aluminum nitrate nonahydrate is a crystalline hydrate - a salt of aluminum and nitric acid - Al(NO3)3·9H2O. It's used for a variety of things such as antiperspirants, corrosion inhibitors, and petroleum refining, or… glow-in-the-dark powder. Watch this science video tutorial from Nurd Rage on how to make aluminum nitrate nonahydrate with Dr. Lithium.

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.

How To: Create a Neytiri Avatar makeup look

The Na'vi don't have eyebrows. While you could just paint your makeup on over your brows if you don't have prosthetic appliances to cover them, a neat trick is to take a giant glue stick (or the spirit gum) and go over your eyebrows with it, rubbing the stick in the opposite direction of eyebrow growth. Let it dry and then do it one or two more times (depending on how thick your brows are). With your brows flat against your skin with a layer of "glue skin" over them, you can have a nice, flat...

How To: Analyze cheap sulfuric acid for concentration & purity

In this home scientist video the instructor Robert Bruce talks about cheap sulfuric acid. He says that sulfuric acid is very important in any lab both as a reagent and a precursor for preparing other chemicals. He points to the battery acid saying that it is a good source of sulfuric acid which is 35% concentrated. Now he shows various methods to obtained sulfuric acid and shows how to test one of the thus obtained sulfuric acid for its concentration. In this video the author talks about sulf...

How To: Make potassium trichromate

In this how-to video, you will learn how to make potassium trichromate. You will need potassium chromate and dichromate. It is easy to go between the two. You can add a base to the dichromate to make the chromate. It will go from orange to yellow. The trichromate can be produced. You will need nitric acid, potassium dichromate, and sodium disulphate. First, make a solution of sodium sulphate. Take a long test tube and the potassium dichromate to it. Add double the volume of concentrated nitri...

How To: Make a homemade moisturizing yogurt facial mask

How to make a home-made moisturizing face-pack with yogurt:Chanelbluesatin shows us how to make a simple moisturizing face-pack with yogurt. All you need is plain yogurt, a tea-spoon, some honey and a few drops of lemon juice. Now let’s start off. Take a one or two tea-spoon of yogurt in the bowl. Mix well before putting the yogurt into the bowl. Add one or two drops of concentrated lemon juice to it. Then, take one tea-spoon of honey and add it to the mixture. Mix it well. Now, before you ap...

How To: Dye and marble Easter eggs

During Easter, everybody stocks up on the eggs because dying eggs is a great Easter activity. But there's something else you can try… dying and marbling. Watch this video recipe to learn how to dye and marble Easter eggs. A new twist to Easter eggs.

How To: Make sodium bromate & potassium meta-periodate

This video tutorial is in the Education category which will show you how to make sodium bromate and potassium meta-periodate. This experiment uses toxic chemicals and releases harmful gases. First you have to make a saturated sodium bromide. To this solution then add a small amount of potassium dichromate. The solution now becomes concentrated. Then make the circuit as shown in the video. You need a 3 - 5 ohm resistor in order to reduce the current. Then let the cell run for around 6 hours. S...

How To: Understand how metals react in hydrochloric acid

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...

How To: Create a seductive Valentine's Day eye makeup look

This video will show its viewers how to get nice seductive eyes for the Valentine Day. The video will show step by step, the use of different colors and different brushes in addition to the brand and line of makeup to be used, including the use of colors on different parts of the eye lids. The video also explains the effects of colors and brushes on your eyes. For example some brushes give you more of a smoky or concentrated look. It also shows how to highlight your eyes with the use of other...

How To: Properly cut a cigar

This video will show you how to properly cut a cigar. The demonstration cigar is a Hoyo de Monterrey Excalibur 1066. The video makes the point that there are lots of ways to cut a cigar, and people can do it how they like (some like to simply bite the end off with their teeth!). First we're shown various kinds of cigar cutters. For example, a simple, cheap cutter, a nicer double cutter, and a more old fashioned cutter. Next we get to how to actually cut the cigar. There are lots of different ...

Prev Page