Category : Hobbies & Science : Society & Culture & Entertainment

Felt Crafts Ideas

Hobbies & Science
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Felt can be used in a variety of crafts and a variety of way. It is versatile because it is available in either thick or thin sheets as well as in different colors and textures. Use it to embellish existing items or to create new pieces for the home or toys for children.

How to Make a Simple Hydrometer

Hobbies & Science
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A hydrometer is a type of instrument that measures the density of liquids. Making a simple hydrometer to measure the density of several types of liquids is a good science project for elementary or middle school students. Building a hydrometer takes only a few common materials that you probably have

How to Make Lathe Tools

Hobbies & Science
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One of the expenses when working with a lathe is the need for lathe tools. These cutting implements come in many shapes and sizes, providing the different cuts for operations such as turning wood, shaping wood, parting off a finished wooden piece, as well as similar operations for metal stock in a m

How to Make a Lime Clock

Hobbies & Science
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A battery needs three elements to produce an electric current: a positive electrode, a negative electrode and a conductive solution called an electrolyte, which allows electrons to flow from one electrode to the other. In a lime battery, a copper strip is the positive electrode, or cathode; a zinc-c

Steam Table Uses

Hobbies & Science
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Steam tables are used as a quick reference regarding the properties of steam. They can be used to determine pressure/temperature relationships and to figure British Thermal Unit output. If you study engineering, thermodynamics or physics academically, you'll probably study steam tables.

How to Remove Shotgun Rust

Hobbies & Science
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Removing rust from a shotgun often can be done at home with simple household items, depending on the severity of oxidation, of course. If after cleaning your gun with a few simple steps, you still see traces of rust, you should take it to a professional. Left ignored, oxidation will deteriorate the

How to Glue Lexan to PVC

Hobbies & Science
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Since Lexan, a polycarbonate polymer, and PVC are different types of plastics, special bonding agents must be used to glue the two together. The majority of plastic adhesives are meant to bond like types of plastics and therefore you need to use an adhesive that will soften and bond unlike plastics.

History of the Folding Knife

Hobbies & Science
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A folding knife has at least one blade that fits inside its handle, allowing the knife to be carried easily and safely in a pocket and giving it the moniker “pocket knife.” The typical blade length of a folding knife is to 2 to 6 inches. Two main varieties of folding knife exist: the sli

Heat Capacity Components

Hobbies & Science
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Water has a high heat capacity due to strong intermolecular bonding and high-energy vibration modes.ocean image by Yulia Volodina from Fotolia.comHeat capacity relates to several concepts. Thermal energy and entropy change allow for direct calculation of heat capacity. Degrees of freedom...