Allergic Reaction Search Results

How To: Do a sodium and water experiment

In this video tutorial, viewers learn how to do a sodium and water experiment. Sodium is a silver metal that is very reactive. When exposed oxygen in the air, an outer coding of sodium oxide will form. Simply drop a piece of sodium into a cup of water. When dropped in water, sodium reacts to form sodium hydroxide and hydrogen gas. The sodium will constant move around in the water. Sometimes the heated reaction will cause the nitrogen gas to ignite. Under the right condition, it may even cause...

How To: Survive an attack in the street

The video describes an easy way to survive an attack from someone in the street. When the assailant grabs your, your first reaction should be to guard against their initial blow. Then, punch them in the groin, grab them around there neck in a sleeper hold type move using your arm to wrap around the back of their head and/or neck. Proceed to knee them hard either in the stomach or groin, and then simply push them off of you presumably giving you enough time to run and escape.

How To: Melt Styrofoam with nail polish remover

This short video is about melting a styro cup without fire. It's magical. Anyone watching it would wonder what had happened to the Styrofoam cup which was dipped in Acetone, nothing but common nail polish remover. This is a short and cute video and watching this could be fun for kids. The fun element comes at the later part of the video. This would kindle the interest of kids in trying out the reaction of different substances in various solvents.

How To: Make an Assassin's Creed hidden blade prop

Adam from Chemical Reaction wants to show you a little movie magic. This video tutorial will show you how to make an Assassin's Creed hidden blade prop for your homemade film. If you're a fan of the Assassin's Creed video game, then you can't not make this hidden blade. This is a great prop for anybody wanting to recreate it for a fan film. It's cheap and quite easy and works pretty well.

How To: Block Unwanted Calls or Text Messages on Your iPhone

Trying to get rid of an ex or clingy friend? Just want to keep telemarketers from calling you all the time? You can use the iPhone app iBlacklist (for jailbroken iPhones) to create a list of blocked calls for your iPhone. Blacklisted phone numbers will not be able to send you either phone calls or SMS text messages, so you can continue to use your iPhone in peace. Customize your phone's reaction to blacklisted numbers and adjust the filters for your blacklist, as well.

How To: Make sure your game is really dead

In this tutorial, we learn how to make sure your game is really dead. One of the best things is to stay away from the feet, then touch the eyes with the end of your rifle. If there is no reaction at all, then the animal is dead for sure. After this, you will need to attach a validated elk tag to the animal, making sure it's secured. Glue it to the ear using your hands and pressing it down for several seconds. In different states, there are rules and regulations as to where you have to apply t...

How To: Seduce women

in this video we learn how to seduce women. Seducing women comes down to being confident, interacting with them, and knowing what their reactions are. First, you will need to talk to a girl and get a feel for her. Be confident in yourself and don't care what anyone else thinks about you. Enjoy and love yourself but don't come off as arrogant to the girl. Talk to her and interact by touching her and teasing her. Once you do this, the girl will start to approach you and become far more interest...

How To: Balance chemical equations properly

In this video, we learn how to easily balance chemical equations. There are two sides of a chemical equation, both must be equal to get the proper reaction. To balance these out, first write out the number of atoms that is on each element on each side of the equation. After this, you will need to find the multiple between the matching elements. Once you find this, you will be able to balance out the equation for each of the elements. When you do this, you will have the same mass and atoms on ...

How To: Balance chemical equations properly

In this video we learn how to balance chemical equations properly. What is a chemical equation? It's a statement that uses a chemical formula to show identities and relative amounts of the substances involved in a chemical reaction. To balance an equation out you must have the same number of atoms on both sides of the chemical equation. Or, you must have the same amount of mass or matter on both of the sides. Once you have these balanced out so they are the same then you will have it complete...

How To: Make elemental sulfur (sulphur)

This video tutorial is in the Education category which will show you how to make elemental sulfur (sulphur). The chemicals you need are nitric acid and sodium thiosulphate. The reaction produces toxic SO2 gas so keep it coved with a watch glass. Put 12.9 grams of sodium thiosulphate in a beaker and dissolve it in minimum amount of water. Pour about 15ml of nitric acid in to the beaker. Let it sit in a warm place for a couple of hours and the sulphur will settle at the bottom of the beaker. Th...

How To: Use & understand chemical equilibrium in chemistry

This is a video tutorial in the Education category where you are going to learn how to use and understand chemical equilibrium in Chemistry. This video answers a question about the contact process. This is a process by which sulphuric acid is made where they take sulphur, react it with oxygen to make sulphur dioxide and react it with more oxygen to make sulphur trioxide. The equation here is 2SO2 + O2 will give us 2SO3. This reaction is exothermic, that means it will give out energy in the fo...

How To: Understand rheumatoid arthritis

In this tutorial, we learn how to understand rheumatoid arthritis. This concentrates by attacking the joint spaces and causing a reaction. This doesn't happen for an exact reason, but it usually occurs in older individuals between 40-60 years old. This also occurs in young children rarely. The symptoms are when the joints become inflamed and painful. This happens around the knees, ankles, neck, and more. This attacks both sides of the body and the same body parts at once. Fatigue, fevers, mor...

How To: Perform a crossover dribble

In this video, we learn how to perform a crossover dribble. This is an effective move to allow the opposite player to get by the defender. All professional players use this move so they can score or set their teammates up for a shot. To set this up, come full speed at the defender and look right into their eyes. After this, you will scare the opponent and be able to go make your shot. Make sure you move your body quickly and lean forward while you are doing this, so you get the most effective...

How To: Answer the "What is your biggest failure?" question

In this video tutorial, viewers learn how to answer the question, "What is your biggest failure?" When answering this question, be honest and don't lie. Sharing your feelings will show that you care about work. Your reaction may indicate your response to any future problems. Always indicate if you turned that failure into a success. A strong ending to your answer should express that you learned from your mistake. This video will benefit those viewers who are looking for a job, and would like ...

How To: Break up on your girlfriend or boyfriend

In this how to video, you will learn how to break up with your boyfriend or girlfriend. There are plenty of good and bad ways to do this. A bad way of doing this is breaking up with your partner over the phone. Breaking up over instant messages is also bad. Texting can also be considered a bad way of breaking up. Also, never fake your death in order to break up. The best way to do this includes doing this in person. Make sure to tell the truth when you are doing this. Make sure to be careful ...

How To: Understand the basics of matrices

In this video you learn how to understand the basics of matrices. The video includes how to do matrices with addition, subtraction and multiplication. The teacher explains in this exercise that you will need to know the number of rows and columns. He breaks down all of the steps required to solve these problems. Not only does he show how to understand the basics of matrices, but he does it dressed up like a king and with a little reggae music. You can hear the class's reactions to his jokes i...

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: Make a big ribbon bow

Have you run out of ideas to decorate your Christmas tree? Well, here is a fantastic video on how to make big ribbon bows. The video shows how to make bow ribbons in a single color and in a double color. It is quite interesting to see a strip of ribbon change into a wonderful bow. This can be used to decorate homes for Christmas, birthday party or any festive function. Attach one onto a gift packet and see the reaction on the faces of the recipient. This sure is one easy and simple idea to tr...

How To: Make an easy and inexpensive DIY frame for your art

Framing and matting your favorite posters or art can get expensive! In this Curbly video tutorial, you'll learn how to make a quick and inexpensive frame. All you need are some basic supplies available at almost any arts and crafts supply store including: A sheet of plywood, a plexiglass cut to the size of the plywood, archival paper cut to the size of the plywood, frameless corner clips, and a bracket.

How To: Create, shoot and edit a time freeze effect

Adam from Chemical Reaction wants to show you a little movie magic. This video tutorial will show you how to create, shoot and edit a time freeze effect for your homemade film. Stopping time is no joke, but doing it with a little camera skills and a little editing skills makes it easy. You just need to know when to freeze the frame and then layer it with another.

How To: Create the Matrix stop bullet effect

Adam from Chemical Reaction wants to show you a little movie magic. This video tutorial will show you how to create the Matrix stop bullet effect for your homemade film. To recreate the bullet stop effect from the Matrix without a lot of money, this is how you're going to do it. Make sure you get a real looking toy handgun and a bullet to match. Then all it comes down to is a little camera work and a little editing.

How To: Fake shooting a person with a gun for film

Adam from Chemical Reaction wants to show you a little movie magic. This video tutorial will show you how to fake shooting a person with a gun for your homemade film. If you really want to make it look real, get the most real prop gun you can get, but don't use a real handgun. Fake blood is a good thing to get from a Halloween store. Acting skill is the most needed part here... because you can't look like you're being shot unless you can act properly.

How To: Make silly putty at home, just like NASA

NASA has invented the T-RAD Device, a.k.a. Goo Gun. Astronauts aboard the STS-120 will test the effectiveness of the pre-ceramic polymer in its ability to repair damaged shuttle tiles. To make connections to the mission, in this video tutorial, Dr. Diana teaches you how to make your own silly putty, also a polymer, at home.

How To: Change the physical properties of yellow sulfur

In this tutorial, we learn how to change the physical properties of yellow sulfur. First, take a heat proof water glass and add in 1 teaspoon of sulfur powder. After this, heat the glass on a low flame for a few minutes. After this, the sulfur will start to melt and turn a reddish color. Now, pour the sulfur into some cold water after it's all the way melted and watch the reaction that is occurring. Once cool, you will be able to pick up the sulfur from the water and play with it, although it...