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Also known as a dunking booth or dunking machine, a dunking tank is a fun activity for fundraisers, fairs or parties. Usually someone known to the participants sits in a seat suspended over the tank filled with water as they throw water-filled balloons at targeted lever with the goal of hitting the mark and making the seated person fall into the water. Dunking tanks are available as rentals from many party supply stores and catering companies and aren't difficult to set up.
Dunk tanks are a popular attraction at parties, carnivals and fundraisers. They consist of a seat suspended above a tank of water and a trigger to make the seat release. When the person on the seat falls into the water it creates a big splash and a lot of laughs. Dunk tanks can be fun but can also be dangerous if safety rules are not followed. If using a dunk tank, one should be sure to take all precautions necessary to ensure that everyone is kept safe.
A number of websites will convert cubic centimeters to liters for you, but doing the conversion yourself is relatively easy to learn for those situations where you don't have the Internet to help you. Say, for example, you have a container that only tells you its volume is 200 cubic centimeters, and you need to know how many liters the container can hold. To do this, all you need to know is this simple conversion process.
In laboratories and other settings that involve the use of harsh or dangerous chemicals, safety is of the utmost importance. However, even those who abide by safety procedures can fall victim to accidents. If you spill chemicals on your skin, eyes or clothing, it's imperative that you wash as quickly as possible. Washing with distilled water (from which all impurities and contaminants have been removed) is one way of handling such incidents.
A number expressed in grams per cubic centimeter (gr/cc) measures the density of a solid in metric units. A number expressed in grams per cubic inch (gr/cu in) also measures density, but in mixed metric (grams) and U.S. customary (cubic inch) units. Cubic centimeters and cubic inches are measures of volume. You can convert grams per cubic centimeter to grams per cubic inch by multiplying by the number of cubic centimeters in a cubic inch.
Dunk tanks are frequently found at carnivals, festivals and charity events, enticing passersby to test their throwing arm against a target that, when hit, drops a seated participant into a water-filled container. Maybe you know the person who has volunteered to sit on the dunk tank, or maybe you just want to showcase your abilities. Whatever your desires to compete at this game, it's more fun to win, and there are certain tricks you can employ to complete this objective.
A magician walks on stage and turns a ping pong ball into a pigeon. Scientists work a similar magic with unit analysis. Unit analysis is a way of changing one unit of measurement into another. For example, you have a measurement in cubic centimeters, a small metric unit of volume derived from length in three dimensions and you want to change that measurement into liters, a larger metric unit of fluid volume. Scientists have designed the metric system so that conversions like this are simple.
The Mixedwood Plains area is the smallest Canadian ecozone. Despite this, the area actually contains half the population of Canada. It runs down the Quebec City-Windsor corridor, which contains Toronto and Montreal, Canada's two largest cities. The Mixedwood Plains contains the St. Lawrence River, its tributaries and three of the Great Lakes. Species commonly found in the area include black bears, moose and cardinals. However, there are also several endangered species on the Mixedwood Plains.
Black powder, or gunpowder, was invented by the Chinese around A.D. 1000. Black powder is an ideal propellant because of its property of burning at subsonic speeds, a process known as deflagration. C-4, TNT and dynamite burn at supersonic speeds, or detonation -- making them ideal for destroying, not propelling. The components of black powder are potassium nitrate, sulfur and charcoal.
When embroidering on a fabric that has a nap, such as a towel, it is helpful to cover the top of the fabric with a wash-away stabilizer, also known as "topping." The technique creates a smooth surface for machine embroidery by giving support to the fabric. A fabric nap refers to the lay pile in the fabric, and means that the fabric has an extra texture on top of the fabric that is referred to as a "pile." When a wash-away stabilizer is used on top of the fabric, the stitching stays on top instead of sinking into the fabric,…
Water is made up of two hydrogen atoms bonded at a 105-degree angle to a larger oxygen atom. Because of the physics involved in the bond, the two hydrogen atoms have a positive electrical charge, and the oxygen atom has a negative charge. This triangular configuration of opposite charges makes water uniquely suited to support the chemistry of life.
In some ways, pure water is fairly boring. It doesn't decompose violently like 2,4,6-trinitrotoluene (TNT); it isn't poisonous like chlorine gas or strongly oxidizing like potassium permanganate; if it's absolutely pure, it's an extremely poor conductor of electricity; it has neither taste, color nor smell. But once we start to look at some of its other properties, we find it has some qualities we just can't do without. In fact, without water, life as we know it would be impossible.
Submarines are aquatic vehicles that operate both on the surface of water and below it. While they were originally designed for military applications, submarines have become increasingly useful in scientific research, as they allow scientists to explore the relatively unknown depths of the world's oceans. Students who are learning about submarines for school projects can create submarines at home using primarily inexpensive, everyday items.
Water's weight and its volume are intimately related through its density. Density is a measurement of a substance's mass divided by its volume. Since weight is simply a function of mass times the relatively constant effect of gravity, you can easily convert water weight into volume. However, impurities in the water and temperature can influence its density, which means that water's volume can fluctuate slightly even if the weight remains the same. For most purposes, you can assume relatively pure water at an average temperature, and your calculation will still be pretty close.
Doing your own embroidery on towels can make them unique and personable. Whether you are doing monogrammed initials or an intricate design, you want to be sure the result is flawless. To do this, you need to hoop your towel efficiently by using a sturdy embroidery hoop, stabilizer and a topper such as tulle. Embroidery hoops come in many sizes. The majority of hoops are round, however you can also find them in oval and square shapes. For towels, the best embroidery hoops will be made of wood or metal, as they are sturdy enough to hold the towel in…
The Archimedes' principle states that the volume of the displaced water is equal to the volume of an immersed object. It also follows from this principle that the weight of the immersed object reduces; this phenomenon is known as buoyancy. This reduction in weight is equal to the mass of the displaced water. To calculate the weight of the displaced water, you need to know the water density, which varies with temperature.
Towels can be personalized off the store rack just by the color and pattern chosen by the buyer. Towels complement existing interior design and express the personality and preferences of the purchaser. However, embroidering towels with your initials is something you can do to the towels you've purchased to customize them for your home and put a homemade touch on a common item you use every day.
A desiccator is a glass or plastic container that can be sealed in which a small amount of desiccant material is placed in the bottom. A level platform sits above the desiccant. Scientists store chemicals and allow items to cool in the desiccator.
Scientists use HPLC (high performance liquid chromatography) systems to identify solutions or determine the concentration of a molecule in a solution. Solvents are a key component to achieving good results.
The volume of a given weight of water changes with temperature. Water is at its most dense (smallest volume per unit mass) at 4 degrees Celsius or 39.2 degrees Fahrenheit. At this temperature, 1 cubic centimeter or milliliter of water weighs approximately 1 gram.
The Keystone Raptor Toy Hauler 3018 is a recreational vehicle that retails for about $37,000. Knowing the specifications for the 3018TT enables you to know whether this particular vehicle might suit your needs without the hassle of having to visit a dealership.
Alaska's Pacific waters are home to five different species of salmon. Of the five varieties, pink salmon are by far the most numerous, with 100 million fish caught commercially between 1990 and 2005. Four types of fishermen spend their days fishing for salmon in Alaska: sport fishermen, commercial fishermen, subsistence fishermen and fishermen tour guides.
Anodizing is a chemical process that involves running an electric current through a metal submerged in an electrolytic solution to produce a thin oxide layer on its surface. This oxide coating protects the metal inside the coating from further corrosion. This is commonly done with aluminum alloys, titanium, magnesium and zinc. The process is called anodizing because the metal is placed on the anode end of an electric current so that the electric current flows into the electrode through the metal to be anodized. Anodizing beryllium is less common and a fairly complicated process involving high density electric currents and…
The zone of saturation, also called the phreatic zone, is the layer of underground water below the water table. It can be anywhere from a few hundred to a few thousand feet below the surface of the ground.
Sphagnum moss is essential to the environments of bogs and marshes. In Ireland, sphagnum moss is responsible for the bogs, as their living surfaces provide habitat and nurture many species of plant life. It propagates from spores and grows in tightly packed bunches. Scientists have counted 50,000 sphagnum moss plants in 1 square meter of bog, according to Brandeis University.
The elevator represents a great invention, which stands at the very base of all modern construction. Most buildings in every city are multi-story, and without elevators, there would be a limit of only four or five floors. Since they appeared, engineers have constantly improved elevators to be faster and safer.
Water striders are common insects often seen on the surfaces of lakes and ponds. They have the remarkable ability, from which they take their name, to walk on the surface of water without sinking. Water striders use a combination of things to achieve their water-walking abilities, including water's surface tension, the structure of their legs, and the hydrophobic qualities of tiny hairs on their legs.
In the metric system, a liter is defined as a cubic decimeter and a kilogram is defined as the mass of liquid water in a liter. The standard density of liquid water is therefore 1.000 grams per cubic centimeter (g/cm^3) or 1,000 kilograms per cubic meter (kg/m^3). The accuracy of this statement varies slightly with temperature, but not significantly for most purposes. Therefore, if you know the volume of a body of water, then you know its mass. The water's weight is the force (F) it experiences due to gravity pulling on its mass (m). According to Newton's second law,…
Imperial units were first defined in Great Britain in the 19th century. They include pounds for weight, Fahrenheit for temperature, gallons for volume, and feet for length. You can convert metric units to Imperial units following simple formulas. Some quick conversions are to note that four liters is about a gallon and one meter is a little more than a yard.
Water is distilled by heating a water source, then collecting and cooling (condensing) the pure water vapor. When done correctly, only the H2O compound results. This water has no dissolved minerals or organic materials.
Mahi mahi (Coryphaena hippurus) means "strong strong" in Hawaiian, a reference to this fish's swiftness in the ocean. Mahi mahi's firm texture and slightly sweet taste makes it a popular seafood.
The density indicates the mass of the compound per a unit of volume and is computed as the ratio of the mass (m) to volume (V): m/V. The straightforward conversion of the molecular weight (denoted as M) is only possible for gaseous substances, and based on the ideal gas law PV = (m/M)RT; P stands for pressure, T for temperature and R is the molar gas constant. As an example, calculate the density of the carbon dioxide (CO2) gas having the molecular weight of 44 g/mole at the temperature 300 K (Kelvin) and the pressure of 2 atmosphere (atm).
Saccharomyces fungi is a one celled organism that is more commonly called baker's or brewer's yeast. It is widely used in the production of beer, wine, distilled alcohol and baked items.
Physicalgeography.net defines ground water as the water that occupies pore spaces in some types of bedrock. It also defines the water table as the top surface of the ground water. In many areas, ground water is the main source of fresh drinking water. Water resource managers and water scientists must keep track of the water table to know how much water they can pump out now and still have water available for use at a later date.
The volume of a cubic centimeter is a milliliter (mL). A milliliter is 1/1,000 of a liter (L). A gallon is 3.785 liters, so a cubic centimeter is 0.000264 gallons.
Submarines rise and sink in water by manipulating the vessel's buoyancy. The buoyant force that a body of liquid exerts upward on a vessel is equivalent to the weight of the liquid displaced by that vessel. If the density of the vessel is greater than the density of the water, the gravitational force pushing down on the vessel will be greater than the buoyant force pushing upward against it. As a result, the vessel will move deeper into the ocean until either it reaches the ocean floor or the density of water increases to a point where the buoyant force…
Besides bacteria, plankton organisms are the most abundant life forms in our planet, and they are an important part of ocean's food chain. They may be the smallest organisms in the world, but planktonic organisms are food for the biggest fish in the world, the whales and the whale sharks. Zooplankton is one of the two main plankton families, and knowing what organisms are considered being zooplankton species, helps you to separate the two different zooplankton categories.
Buoyancy is the tendency of objects to float in fluids. This occurs if the object is less dense than its fluid surroundings. The fluid weighs more per volume, and tries to drop below the lighter object, forcing it up, or buoying it. The object will keep rising until the surrounding fluid is less dense than the object. In the case of a liquid, the object keeps rising until enough of it is above the surface that it displaces only its own weight in liquid.
The Mixedwood Plains ecozone of southern Ontario and Quebec is a landscape of forest and grasslands in which about half of Canada's 33 million inhabitants resides, with 85 percent in urban areas. Until the end of the Pleistocene glaciation 11,000 years ago, the Mixedwood Plains were under a sheet of ice one mile thick. For another thousand years, the area was covered with a sea of glacial meltwater. The landscape is now flat plains that gently roll over glacial moraines in some locations.
Converting weight of water usually involves volume calculations. The volume of the water can be obtained as a ratio of the mass to density. However, such calculations are not straightforward since the water density significantly depends upon temperature. Fortunately, water densities at different temperatures are tabulated. As an example, we will convert 1,500 g of water to gallons if the the ambient temperature is 77 degrees F.
Machine embroidery is a great way to personalize towels for the kitchen, bath, or beach. Whether you're adding a monogram or a design, you can create professional looking embroidery by using the proper technique.
The gestation period of a female rabbit or doe lasts only 31 days, and some people do not realize that their rabbit is pregnant until she begins to give birth. There are, however, a few signs that, when viewed in combination, indicate a possible pregnancy, according to breeder Laurie Stroupe.
The upward-pushing force that keeps things afloat is called buoyancy. This was discovered and described by the Greek philosopher and mechanic Archimedes. An object is buoyant to the same degree that it's water displacement is greater than the weight of the water it displaces. Therefore, if a solid block weighs 2 lb., but it displaces 2.1 lb. worth of water, so long as it does not absorb water and become heavier, it will just barely stay afloat. Life jackets work by using designs or substances that are buoyant enough to support not just themselves, but the anticipated weight of a…
Want to catch crawfish but don't have a trap? No problem! Learn to catch crawfish the old-fashioned way, with the method my mother taught her two little tomboys.
Catfish are not live bearers. They lay their eggs in cavities. Look for places with lots of nooks and crannies in shallow water, and you'll find spawning catfish. That old Christmas tree? Toss it in your pond and you have an instant catfish nursery. Mature catfish can lay 4000 to 100,000 eggs, and breeding males can fertilize as many as nine spawns a season if the eggs are removed from the spawn site each time.
Black powder is easy to make, and all of the ingredients can be purchased at drug or hardware stores. Invented by alchemists or (historically) the Chinese many years ago, black powder has seen many uses. It has been used in weapons, in fireworks and as a powerful tool for blasting away rock for road construction. It is also used as the charge to propel rescue parachutes and escape hatches in airplanes and ships.
The basic design of a dunk tank is always the same--a seat or small platform that can hold the weight of one of more people is suspended over a large tank of water or some other liquid. On one side of the tank is a target that is directly connected via a mechanism to the seat or small platform.
The kids can be paleontologists for a day when you plan your own dinosaur dig.
