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How to Read a Pocket Periodic Table

The periodic table of elements, generally credited to the Russian chemist Dmitri Mendeleev, shows all the most basic elements, or material that can be broken down to a single atom while retaining its fundamental characteristics, on a chart. The table lists each element's type, from solid to gas to l...More...

How to Calculate the Resistance of DB Drives

A DB drive is short for a dynamic braking system associated with electric motors. This is where the energy of a DC electric motor is used as a braking source. DC electric motors generate a magnetic field and dynamic braking occurs when the energy in this magnetic field is routed through a resistor t...More...

How to Hand Roll Form a Steel Plate

A roll of steel can be hand rolled to form a steel plate with the use of only one tool. This tool is known as a hand-operated slip roll and while there is a great variety of these slip rolls, they all follow the same basic procedures. If you have a piece of steel that is slightly rolled up and you w...More...

How to Make Vellum?

Vellum is animal skin or hide that has been dried and stretched to be used for printing, writing or painting. It is thin, durable and manufactured in a manner similar to leather. Animal skin is cleaned, soaked, placed on a frame, stretched, scraped and dried. Originally, vellum was made from calf-sk...More...

How to Melt Silver Metals

Silver is a common precious metal that can be found in many homes. In some cases it may be desirable to melt the silver down. Scrap silver can be found in some old coins with no real numismatic value, old dental work, discarded jewelry, silverware and some consumer goods. It is also possible to have...More...

Diode Lab Analysis

Diodes allow electrical current to pass, or flow, in one direction only. Ordinary diodes can be divided into those that pass small currents -- typically of 100 milliamps (mA) or less -- known as signal diodes, and those that pass larger currents, known as rectifier diodes....More...

Pipe Notching Techniques

Pipe notching is a cutting technique designed to allow two ends of a smooth pipe or one end and one side of a pipe, to slot or match up together. This joint is then filled in with a weld or fitted with a connector....More...

How to Wire a MerCruiser Alternator

Mercury Marine, formed in 1939 and now a division of Brunswick Corporation, uses several brand names for its products. The brand synonymous with marine engines is MerCruiser. MerCruiser engines, fitted to vessels worldwide, use several types of alternators to produce electrical energy to charge batt...More...

Weather Tools Used by a Meteorologist

Older weather instruments such as weather vanes are still useful for meteorologists.weather vane image by Edsweb from Fotolia.comTraditional tools used by a meteorologist include the thermometer, barometer and hydrometer. These are necessary tools, used in devices such as climate stations......More...

DIY Drawer Organizer

Drawers are a fast place to tuck household items away. Just open up the drawer and throw something in. The problem is finding the items you put inside. Rummaging around in a drawer is time consuming and irritating. Making a drawer divider solves the problem. A divider gives the drawer an organized s...More...

How to Change the Wavelength of Light

White light, the normal, visible light like that we receive from the sun every day, is made up of light of different wavelengths, ranging from about 400 to 800 nanometers (nm). This means that, should we wish to change the wavelength of white light, we must isolate the various wavelengths within tha...More...

How do I Build a Coke & Mentos Car?

Many people have seen the eruptions that mixing Mentos mints and Coca-Cola can create. You can use the same principles to develop a rudimentary car that will be propelled using the force of the Coke and Mentos fountains....More...

Types of Iron Rust

Rust is a term used to describe the destructive formation of iron oxide on surfaces made of iron or iron alloys. Rust is a type of corrosion, and is caused by a chemical reaction between iron ions and ions of oxygen that are contained in air, water, and other compounds that may contact the iron. The...More...

How to Put on Pinewood Derby Wheels

Pinewood Derby is a hobby that combines the crafts in making a model racing car with the thrill of competing with it. The cars themselves are simple, fashioned from a block of pine with basic axles and wheels, and driven solely by gravity. Putting the wheels on is the most complicated part of the ba...More...

How to Polish Steel With a Dremel

Stainless steel can be polished to a bright, mirror-like sheen. Polishing stainless steel is a process of using coarse to fine polishing compounds in sequence to take the steel from a damaged surface to shiny. Polishing compounds are commonly in paste form, but in some cases they may come in a stick...More...

The Skeletal Structure of Humans

The skeletal structure of humans is comprised of bones supported by a number of connective tissues. These bones are made from a number of minerals and provide various different functions for the human body. The skeleton accounts for 14 percent of the total human body, much of which is water in the b...More...

Stainless Steel Gun Cleaning Tips

Cleaning your gun is an important part of gun maintenance.pistola lateral image by MelenaVerde from Fotolia.comA few minutes of effort taken to clean a handgun can make a world of difference. Cleaning a gun, especially a stainless steel gun, isn't as simple as wiping it with a rag. Ensure......More...