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How To: Perform RV air conditioning maintenance

Jim Twamley teaches us how to perform RV air conditioning maintenance in this tutorial. It can be expensive to replace an air conditioner, cleaning it will help give it a longer life. First, remove the top of the unit by removing the screws from the front and back. After this, blow out the inside to make sure everything is nice and clean with air pressure. Next, clean the inside of the top of the unit with household cleaner and a clean rag. After this, replace the top to the unit and insert t...

How To: Change your air filter

Changing the air filter in your car sounds like something you'd like your friendly neighborhood garage do for you, but in reality it's quite easy to change all by your onesies at home. Don't believe us? Then check out this video to learn how to replace your air filter step by step.

How To: Do a cool coin flip switch magic trick

This video will show you how to perform a really cool, easy coin trick with only two different coins and your hands. The effect is that you throw one of the coins up in the air, catch it, and reveal the other coin, which the audience has not seen yet. You accomplish this by switching the second coin from one hand to the other while the first is in the air, then stashing the first coin in your pocket while showing your audience the second. Easy and impressive.

How To: Winterizing your boat engine block

In this Outdoor Recreation video tutorial you will learn how to winterizing your boat engine block. For this you will need some screwdrivers, compressed air and a flexible hose if you have a hot water heater system on the boat. First you got to drain out all the water inside the engine. Remove the two plugs from the block and one plug from the sea pot as shown in the video and drain out all the water. Be careful and don't drop the seals while removing the plugs from the engine. While the wate...

How To: Make a Powerful PVC Air Cannon with Coaxial Piston Valve

The video featured in this article demonstrates the function and design of a powerful form of air cannon that operates using a purpose made valve that opens very rapidly. This allows for a massive amount of pressurized air to be released at once to throw a projectile many hundreds of yards. The design of the cannon also allows the barrel and the air chamber to occupy the same space, and so it is very compact and manageable which makes for an enjoyable shooting experience.

How To: Use a Hydroponic Seed Starter to produce seedlings

Learn how to make and use a hydroponic seed starter to produce seedlings with this video tutorial. This is a very easy setup to make. Start with a basic metal shelving unit. Hang florescent lights above each of the shelves on the shelving unit. Make sure the lights are balanced for day time. Put a plastic container on each shelf that is about the size of the shelf and tall enough for the rim to sit just below the florescent light tubes. You will need some pecks tubing and some plastic clamps....

How To: Freeze water by boiling acetone

You can freeze water by boiling it. To do this you will need a Vacuum pump. Vacuum pump can be used to suck out air from a container and create vacuum in it. Take a bell jar. Now connect the vacuum pipe into it and suck out the air from it. Take a flash and add little bit of water to it. Now we want to freeze this water. Add some acetone to it. Acetone boils and evaporates very quickly. Add a few chips of marble to it. These will enable in boiling of the water. Now set this flask in the bell ...

How To: Clean an RC vehicle kit, engine and air filter

If you call yourself a hobbyist or a kid at heart, you know that remote-controlled vehicles are more than just fun. If you're a serious R/C man, you'll know all about doing everything to your model truck or car, like fixing wheels, vamping the pinion gears, waterproofing, troubleshooting, electronic diagnostics, setting up, programming and finally... racing. As much as you know about these remote-controlled vehicles, it will never be enough, you'll always be looking for more...

How To: Check an air-conditioner capacitor

As the efficiency and capacitance of a capacitor can decrease over time, it's important to check them from time to time. Make sure your air-conditioner is running optimally, and prevent larger malfunctions or repairs. Watch this video tutorial and learn how to bench check a single capacitor and a dual capacitor.

How To: Do the Coanda effect science experiment

Check out this simple experiment using running water from a tap, and air blown through a straw, as it flows over the back of a vertically hanging plastic teaspoon are used to demonstrate the Coanda effect. Here the attachment of the back of the teaspoon to the flowing stream of fluid (air or water in this case) is what is referred to as the Coanda effect. Watch this how to video and you will be able to create the Coanda effect with your kids at home.

How To: Prepare clay for wheel throwing

Georgia Tech resident pottery instructor, Trip, describes how to knead clay and get it ready for use on the wheel. First you need a piece of soft scrap or fresh clay. When kneading, or wedging the clay, try to force out all of the air bubbles. The kneading board should help to absorb excess moisture. Test the kneaded clay by slicing it with a wire cutter to check for air bubbles.