How to Find Heat of Vaporization

Hobbies & Science 4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM

4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM 22 22

Heat (or enthalpy) of vaporization is the energy needed to transform one mole of substance into gas. The heat of vaporization can be found using the Clausius-Clapeyron equation if the vapor pressure over the liquid phase is known at several temperatures: ln(P1 / P2 ) = Hvap/R x (1/T2 - 1/T1). "P1

The Best Sources of Amber Fossils

Hobbies & Science 4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM

4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM 7 7

Amber has been known to wash up on U.K. shores.amber bead image by Eugene Tokarev from Fotolia.comAmber is the common name for fossilized tree resin---substances human beings have fancied since the Neolithic period and use in jewelry, traditional medicine and perfume making. Fossil resin...

How to Make a Rolling Cart

Hobbies & Science 4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM

4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM 5 5

If you need a rolling cart but don't want to break the bank buying one, you can make a simple rolling cart from an infant changing table. You can find a changing table at your local thrift store, yard sale or you may even have one lying around the house awaiting a project. Changing tables are built

Types of Erosional Landforms

Hobbies & Science 4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM

4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM 37 37

Erosional landforms result when a force of nature interacts with an existing land area. In the process, the force of nature removes material, usually rock, gravel or sand, from the land mass. The major forces of erosion include wind, water and glaciated ice. These forces can move debris across the l

How to Make a Wood Kiln from a Freezer

Hobbies & Science 4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM

4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM 44 44

Wood kilns are used to reduce the moisture content of newly milled wood. The moisture content of wood must be reduced so that the wood fibers are stable and won't change too drastically in density and size. This is especially necessary for wood used in interior construction or for artists' projects,

Green Substitutes for Aluminum Cans

Hobbies & Science 4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM

4/14/2024 12:14:00 PM 4/14/2024 12:14:00 PM 10 10

Aluminum cans are a common sight in refrigerators and on pantry shelves everywhere, and for good reason. Aluminum is cheap, strong, lightweight and highly recyclable, making it a good choice for food storage that is also good for the environment. However, there are some alternatives to...

How to Convert Gigahertz to Wavelengths

Hobbies & Science 4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM

4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM 231 231

Two fundamental properties of any regular, repeating signal are its wavelength and frequency. For a given medium, such as sound, light or radio waves, the two properties are intimately connected. To convert from one to another, you need to know the signal's propagation speed through a medium. Becaus

How to Make a Model of an Organelle

Hobbies & Science 4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM

4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM 20 20

Cells, despite their small size, contain a large number of organelle, which make them impressive subjects to model for science fair projects and classroom activities. The modeling process helps students remember the information, and in turn this provides a strong foundation for later life-science co

Importance of Scientific Research

Hobbies & Science 4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM

4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM 115 115

Scientific research helps us understand the world around us. Research helps people understand how things work and why certain things look or act the way they do. In addition to satisfying curiosity, research can also help save or prolong human life. Scientific research contributes to knowledge about

What Is Sulfide?

Hobbies & Science 4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM

4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM 154 154

Sulfur is the element in the periodic table just below oxygen, which means it has at least some properties similar to oxygen. Its atomic number is 16 and can readily receive two electrons from another source. If it does so, it then changes from sulfur to sulfide.

How to Tell the Difference Between a 1943 Zinc Coin & a 1943 Steel Penny

Hobbies & Science 4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM

4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM 5 5

The 1943 steel penny is composed of a steel core with a very thin outer layer of zinc. A very small handful of copper-based pennies were minted during 1943 as a result of an error at the mint. According to the U.S. Mint, about 40 of these coins are still in existence and have sold for as much as $82

Science Projects With Black Pepper

Hobbies & Science 4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM

4/15/2024 1:59:00 AM 4/15/2024 1:59:00 AM 56 56

Black pepper comes from ground peppercorns, a plant native to Asia and the Mediterranean. Ground black pepper is a favorite condiment among modern foodies and is almost always paired with salt on tables in restaurants. However, black pepper isn't just for seasoning food. You can also use it in scien

How to Play "SimEarth: The Living Planet"

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 19 19

"SimEarth: The Living Planet" was the direct sequel to the original "SimCity" computer game. It was released for the PC and multiple game consoles and has since been re-released on other platforms. The game expands the concept of "SimCity" so that you can build and develop an entire planet rather th

How to Disassemble a Llama 1911

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 54 54

The Llama 1911 is a Spanish-made clone of the Colt M1911 semi-automatic pistol. The pistol was produced for several years with varying levels of quality, fit and finish. These guns are found on the used market and are lower-priced than most M1911 clones. Regular maintenance is required to keep them

How to Glue Paper to Plastic

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 21 21

Many projects, such as school or craft projects, call for adhering one medium to another. Today's craft market offers a wide variety of tapes and glues to meet all of your project requirements. Gluing paper to plastic can be accomplished with ordinary school glue or rubber cement. Many specialized p

About Soil Conservation & Water Resources

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 17 17

Many of the ecological services and functions that society depends on directly affect the quality and quantity of soil and water. Conservation of soil and water are paramount to a sustainable environment and human population.

How to Clean Holograms

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 249 249

Do not worry if you have a hologram and are afraid of cleaning it. There are ways to clean the hologram without ruining its effects. Holograms are made of photographic film. Although the hologram's materials are sensitive, you can use photographic emulsion cleaner to wipe the hologram without damagi

Codename: Iceman FAQ

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 240 240

Codename: Iceman is a computer adventure/simulation game released by Sierra On-Line in 1989. Players assume the role of Lt. Commander Johnny B. Westland and embark on a secret submarine mission to rescue a kidnapped U.S. Ambassador. The game was created by Jim Walls, who also designed the Police Que

How to Tell if a Postage Stamp Is Rare or Not

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 142 142

The first country to introduce the adhesive postage stamp was Great Britain in 1840. From there, its use spread rapidly to both North and South America and to what is now the Commonwealth. Thanks to assiduous collectors, many stamps have survived in great numbers and most are worth pennies only. For

How to Flat Grind a Knife

Hobbies & Science 4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM

4/15/2024 2:00:00 AM 4/15/2024 2:00:00 AM 243 243

The grinding of a knife is what makes the blade sharp, and there are many different types of grinds. The flat grind is the best type of grind for relatively thick blades that also need to be versatile. Some flat-ground knives, especially on those that are especially thick, occasionally will require