Chemical Contaminants Search Results

How To: Use the Callicrate Bander

Reduce the stress and complications of castration on both farmers and cattle. The Callicrate Bander is a non-surgical and non-chemical way to castrate. This instructional video shows the simple steps for how to castrate livestock with Callicrate Bander, and how to keep the animals healthy and free from tetanus.

How To: Experiment with carbon dioxide gas

Mr. G plays with chemicals and fire (what a surprise), for a really cool demonstration. An experiment you'll want to try, and probably can try immediately, as all materials (vinegar and baking soda) are likely in your house already. Exothermic reaction and gas displacement at its best!

How To: Get rid of head lice with Dr. Su Laurent

Head lice can be a nasty, unwelcome visitor in your life. And if you have children, you're likely to be confronted with an infestation sooner or later. Dr. Su Laurent explains that getting rid of head lice can be a tricky undertaking, but the most important thing is to be persistent. You'll need to wash the hair with the latest lice treatment available, as the lice may adapt to chemicals from year to year. It's very important to follow up this treatment at least one more time, seven days late...

How To: Keep Garlic from Sticking to Your Hands & Knife

It's a shame that one of the world's tastiest foods can be such a pain to prep. Most cooks are familiar with this conundrum: chopping or crushing garlic releases a pungent liquid that causes bits of garlic to stick your knife and hands, creating a messy affair. So what is going on here? The common assumption is that the garlic is releasing some kind of oil, but the truth is that this liquid rinses away easily in water. Yet one of the basic precepts of chemistry is that oil and water don't mix.

News: The Vatican's Hidden Steampunk Treasure Inside the Sistine Chapel

While the pope himself may not be Steampunk, you might be amazed at what is: the coronation stove. For those who don't know, it's been a tradition for a very long time to signal the election of a new pope (or the lack of a new pope) via colored smoke. More specifically, once the cardinals have all voted for the new pope during the conclave, the ballots are burned in a special stove in the Sistine Chapel, and the smoke is visible in St. Peter's square.

How To: Safely care for your kitten with Dr. Gaspar

In this Pets & Animals video tutorial you will learn how to safely care for your kitten with Dr. Gaspar. Your kitten's first year life is critically important. First make sure your home is safe for your kitten. Remove anything that you wouldn't leave about in the presence of a child. Get your kitten home over the weekend so that you have plenty of time to get acquainted with the kitten. Introduce your kitten to the litter box. The box should be roomy and uncovered. Place the box in a quiet lo...

How To: Put out a candle with an empty glass

Amaze and amuse your friends with this fun magic trick! Using only vinegar and baking soda, which you may remember from some of the bottle-bomb-making videos elsewhere on the site, you can create carbon dioxide which, since it's heavier than air, can be used to invisibly fill a glass and then be poured onto a candle, extinguishing it without looking like it's done anything at all! No word on how long the gas will stay in the glass, so set this one up right before you want to do it and then hi...

How To: Identify and control garden pests on grapes and roses

This video illustrates the quick and easy method to Identify and control garden pests on grapes and roses . The process is comprised of the following steps:Step 1:Garden pests are quite common in grapes and roses.Step 2: To identify these gardener needs to keep a very sharp eyes on the plants every day. Negligence may lead to disaster of the entire crop.Step 3:Garden pests can be commonly seen on the leaves on inner side or on the shoots of the plant.Step 4:Randomly select the plant and check...

How To: Clean your septum piercing

First of all you need to have some warm water in glass. Now take an ear bud and dip into the warm water. Now apply some soap over it. You can use the hand soap also for this purpose. Insert the bud in your nostril and then rub it around the pierced skin. Remove all kinds of particles accumulated at this portion. Now clean the other nostril as well. Now hold your pierce ring with your two fingers and give it shake. This shall remove all solid pieces from the area. Otherwise these may go down i...

How To: Power wash your boat

This video is led by Eddie from Long Island Boaters Club. As the boating season ends, Eddie explains, it is very important to clean and prepare your boat for storage for the winter. An important part of this process is to power wash the algae growth and barnacle debris that can cover the hull very quickly. After taking the boat out of the water and placing on blocks, he lets it sit for one day. Then using a pressure washer, he removes the algae growth. A scraper is used to remove the actual b...

How To: Identify problems with the peach tree borer

This video explains how to identify problems with the peach tree borer. The video begins with a peach tree shown with bore issues below the dirt line on the trunk. The instructor then explains that most of the pesticides used for this problem are no longer available and that most people have turned to more organic pesticides to solve the problem. The video then explains that you must first clean all the bore and dirt away before trying to apply pesticides to the tree. After the bore holes hav...

How To: Understand organic molecules in chemistry

In this video, we learn how to understand organic molecules in Chemistry. First, you will need to take a look at the chemicals that are inside of each of the different molecules. See how the molecules are made out and then see what number of different acids are inside of them. Once you learn this, you can see what the difference between this and other molecules are. This can all help you understand the beginning and end of what's inside of the molecules. If you aren't good at chemistry, you w...

How To: Understand the hemoglobin & its role in the body

An in-depth explanation of the structure of the hemoglobin molecule, the process by which it binds with the oxygen in the lungs, how it dumps the same oxygen molecule at the appropriate location in the body and how carbon-dioxide gets attached to the hemoglobin molecule are the topics which the narrator in this video explains with diagrams and a few equations.

How To: Treat bed bugs with inspections & follow-up

In this video, we learn how to treat bed bugs with inspections and follow-up. First, you want to take off all your bedding and sheets, then place it into a bag. After this, you need to clean it in burning hot water to make sure the bugs are all killed. After you have removed this, you need to search the mattress to find where the rest of the bed bugs are at. Check around the headboard to see if the bugs are hiding there. Once you find these, you need to use either professional chemicals or a ...

How To: Develop black and white film in the dark room

Developing black-and-white film is an arcane, but very rewarding and useful process if you want to make really good-looking prints from your film. This two-part video goes over the entire process, from chemical measurement and selection to the actual process of developing the film. A must-watch for any would-be film photographer.