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<i>Nymphaea flavo-virens</i> has white flowers that are six to eight inches across. It is native to Mexico.

Nymphaea Flavo-Virens

Nymphaea flavo-virens has white flowers that are six to eight inches across. It is native to Mexico.

<i>Nymphaea tetragona</i> is a free bloomer and the smallest nymphaea in cultivation. The flowers open for three or four days from noon until about 5 P.M.

Nymphaea Tetragona

Nymphaea tetragona is a free bloomer and the smallest nymphaea in cultivation. The flowers open for…

The flowers of <i>nymphaea tuberosa</i> are pure white, four to nine inches across, and open for three or four days, from 8 A.M. to 1 P.M. It is native to the northern, central United States.

Nymphaea Tuberosa

The flowers of nymphaea tuberosa are pure white, four to nine inches across, and open for three or four…

A liquid agitator. Liquid agitators are used with water that has small particles of a substance suspended within. The agitator makes said particles clump and settle faster than the individual particles would have on their own.

Liquid Agitator

A liquid agitator. Liquid agitators are used with water that has small particles of a substance suspended…

A strainer that is typically used to strain solids from a liquid, like sand from water. A common example of a strainer is a coffee filter, in which water comes in, mixes with the coffee grains and proceeds to fall below into the pot, with the solid grounds strained out/left behind.

Strainer

A strainer that is typically used to strain solids from a liquid, like sand from water. A common example…

A lima bean at different stages of soaking. This is an experiment to show how seeds get water from the soil.

Lima Bean

A lima bean at different stages of soaking. This is an experiment to show how seeds get water from the…

Seeds that are placed in hot water to see where their openings are by the air coming out of them.

Hot Water

Seeds that are placed in hot water to see where their openings are by the air coming out of them.

A method of finding the swelling capacity of seeds. Dry beans are placed in a clay cup with holes to let in water. The cup is placed on a pan of water. On top of the seeds is a cup with a piece of wood. On top of this is a three-corned file or iron piece that the iron bar will rest on. The bar is held at eyebolt a at one end. At the other end are iron weights. A ruler is placed at f and is marked where the bar crosses it. (Part of the outer cup is cut away to show the seeds.) When the seeds swell, the bar will rise, resulting in more weights being needed on the bar. At the end, a person ties rope to point b and lifts it to see if he/she can lift as much weight as the seeds.

Seed Swelling

A method of finding the swelling capacity of seeds. Dry beans are placed in a clay cup with holes to…

To show how strong the swelling force of seeds is, this bottle was filled with seeds and water and placed under water until it broke.

Seed Swelling

To show how strong the swelling force of seeds is, this bottle was filled with seeds and water and placed…

Seed covers placed on water and on a piece of glass. Both sets have sugar crystals placed in them. The covers on the water had water in them, which shows that the sugar in the seed helps to draw in water through the cover when placed in moist soil

Seed Covers

Seed covers placed on water and on a piece of glass. Both sets have sugar crystals placed in them. The…

A cutting of a wandering Jew plant in a glass of water. Wandering Jews are common houseplants with multicolored, heart-shaped leaves

Wandering Jew

A cutting of a wandering Jew plant in a glass of water. Wandering Jews are common houseplants with multicolored,…

Hydrostatics is a branch of hydrodynamics that deals with the statics of fluids that are usually combined to an equilibrium and pressure of liquids. Image a is a vessel with a wooden block of the same size and image b, which has the same dimensions as image a, is filled with water and has a depth the same length as the wooden block. The pressure per square inch would be 100/10 = 10

Hydromechanics

Hydrostatics is a branch of hydrodynamics that deals with the statics of fluids that are usually combined…

Water that is placed in an apparatus will have equal pressure if the pistons pushing on it push at the same time with the same frequency.

Hydromechanics

Water that is placed in an apparatus will have equal pressure if the pistons pushing on it push at the…

No upward pressure is present on surface c because of because of the weight of the water in part c d. Upward pressure is present on c because of the weight of the water in part b c.

Upward Pressure

No upward pressure is present on surface c because of because of the weight of the water in part c d.…

The pressure at the bottom of an apparatus due to the weight of the liquid is dependent of the height of the liquid, not its shape. So, if an apparatus has a number of tubes, then the water in each tube will be the same height regardless of shape

Water Level

The pressure at the bottom of an apparatus due to the weight of the liquid is dependent of the height…

A hydraulic press which uses a hydraulic cylinder to generate force. The inventor of the device, Joseph Bramah, had also developed the flush toilet and studied the motion of the fluids in the toilet and developed the press to test it. O is a lever, which forces down piston a upon the water in cylinder A. The water goes through tube d into the cylinder where piston C works, causing it to rise which lifts platform K and compresses bales.

Hydraulic Press

A hydraulic press which uses a hydraulic cylinder to generate force. The inventor of the device, Joseph…

A hydrometer of constant weight. This device measures the specific gravity of liquids. The specific gravity is the ratio of the density of the liquid to the density of the water

Hydrometer

A hydrometer of constant weight. This device measures the specific gravity of liquids. The specific…

A hollow cylinder carrying a basket at its lower end, which is heavy enough to keep the apparatus upright when placed in water. At the top of the apparatus is a pan for holding weights.

Nicholson's Hydrometer

A hollow cylinder carrying a basket at its lower end, which is heavy enough to keep the apparatus upright…

All liquids that wet solids that are placed in them will be lifted, while those that don't will be pushed down. This is an example using mercury and water. b is a glass tube in water, c is a glass tube in mercury. The surface of the water in b is concave, while the surface of the mercury is convex.

Capillary Attraction

All liquids that wet solids that are placed in them will be lifted, while those that don't will be pushed…

Velocity of Efflux. When an apparatus has holes tubes in them, the water that comes out will be the same height as the apparatus

Velocity of Efflux

Velocity of Efflux. When an apparatus has holes tubes in them, the water that comes out will be the…

The water in this example is subjected to the same laws as a projectile. The range can be calculated by taking the initial velocity of the projectile (aka velocity of efflux).

Hydromechanics

The water in this example is subjected to the same laws as a projectile. The range can be calculated…

water is issued from a hole in both vessels, one with a thin wall and one with a thick wall, the stream contracts a short distance from the vessel, and then expands again. This contraction is called a contracted vein, which was named by Sir Isaac Newton.

Contracted Vein

water is issued from a hole in both vessels, one with a thin wall and one with a thick wall, the stream…

If water is discharged through a tube whose length is 1.5 to 3 times larger than the orifice, then the discharge is increased.

Contracted Vein

If water is discharged through a tube whose length is 1.5 to 3 times larger than the orifice, then the…

If water is to be discharged and the inside edges are rounded and the tube is conical, then no contraction will take place.

Contracted Vein

If water is to be discharged and the inside edges are rounded and the tube is conical, then no contraction…

A weir is a rectangular orifice that is used to measure water discharge. In this example, the top of the weir is level with the top of the top of the box it is on.

Weir

A weir is a rectangular orifice that is used to measure water discharge. In this example, the top of…

When pipes are bent at ninety degree angles, a rounded bend is best as shown along with a radius as large as possible to increase discharge.

Pipe Diameter

When pipes are bent at ninety degree angles, a rounded bend is best as shown along with a radius as…

A Cartesian diver. At the top of the jar is a rubber bulb filled with air. The figure inside the jar is made of glass and weighs less than an equal volume of water, so it will float. This image serves to illustrate the elasticity of air and the transference of pressure in all directions of the water.

Cartesian Diver

A Cartesian diver. At the top of the jar is a rubber bulb filled with air. The figure inside the jar…

A spring made from runoff water in a mountain.

Intermittent Spring

A spring made from runoff water in a mountain.

A section of a suction pump. If the piston in the pump were to be lowered, the water level would also lower, and the water would no longer leave pipe A.

Suction Pump

A section of a suction pump. If the piston in the pump were to be lowered, the water level would also…

A lifting pump is used when water needs to be raised to a greater height than what can be done with an ordinary suction pump.

Lifting Pump

A lifting pump is used when water needs to be raised to a greater height than what can be done with…

This image is a centrifugal pump with one half of the casing removed. S is a hollow hub, a is a curved arm, also called a vane or wing, and are revolved with a high velocity of the arrow. The air between them is driven out by the discharge and pipe D. A centrifugal pump is a valuable instrument for raising water to enormous heights.

Centrifugal Pump

This image is a centrifugal pump with one half of the casing removed. S is a hollow hub, a is a curved…

A hydraulic ram. It is used to raise the level of water from a point below water level of a spring to a point that is higher and has no power other than that of that caused by the inertia of the moving water.

Hydraulic Ram

A hydraulic ram. It is used to raise the level of water from a point below water level of a spring to…

A Hancock Coach cross-sectioned in order to display the engine and driving connections. (A) is the exhaust pipe that leads steam to screen (C) and up the flue (D) along with other exhaust from grate (B). (E) is the boiler, (H) is the out-take pipe, (K) is the engine cylinder, (J) is the water-feed pump, (G) is a rotary fan that creates forced drought, and (F) is the flue leading to the grate.

Hancock Coaches

A Hancock Coach cross-sectioned in order to display the engine and driving connections. (A) is the exhaust…

Method of drying out a generator by short-circuiting the armature through a water rheostat.

Drying out generator

Method of drying out a generator by short-circuiting the armature through a water rheostat.

One middle eastern man sits on a divan while another pours water over his hands.

Eastern Divan

One middle eastern man sits on a divan while another pours water over his hands.

Woman carrying a goat-skin water bottle. Such bottles were made by stripping the skin off an animal, preparing it, and closing up the holes where the legs had been. The neck was left open for receiving and discharging the contents of the bottle.

Woman Carrying a Goat-Skin Water Bottle

Woman carrying a goat-skin water bottle. Such bottles were made by stripping the skin off an animal,…

A man carrying a goat-skin water bottle. Such bottles were made by stripping the skin off an animal, preparing it, and closing up the holes where the legs had been. The neck was left open for receiving and discharging the contents of the bottle.

Water Bottle

A man carrying a goat-skin water bottle. Such bottles were made by stripping the skin off an animal,…

A 'purse' seine is a form of fishing net that is paid out around a school of fish, like a cylinder with no top or bottom. When drawn in, the bottom closes, forming a bag from which the fish cannot escape. Figure 1 in this illustration shows the separate parts of the purse seine: A and J, arms of the net; B and I, wings; C, D, K, and L, border of stout twine; F, bailing piece (or bunt); E and G, sides; H, under. Figure 2 shows a diagram of the form a a purse seine spread in the water.

Purse-seine

A 'purse' seine is a form of fishing net that is paid out around a school of fish, like a cylinder with…

A European plant which grows in stagnant or nearly stagnant water. It has long, sword-shaped leaves, and bears an umbel of large reddish flowers at the end of its long stalk. This illustration shows 1) a cross-section of a flower, and 2) the fruit of the flowering rush.

Flowering Rush

A European plant which grows in stagnant or nearly stagnant water. It has long, sword-shaped leaves,…

This illustration shows a six cylinder motor and its many parts: Intake Manifold, Centrifugal Pump, Magneto, Carburetor, Spark Plug, Tractor Screw Shaft, Intake Valve, Exhaust, Exhaust Valve, Water Outlet.

Vertical Type Motor, Six Cylinder

This illustration shows a six cylinder motor and its many parts: Intake Manifold, Centrifugal Pump,…

This illustration shows a V type motor with eight cylinders, fans, and many other parts: Gasoline Supply Pipe, Carburetor, Water Supply Connection, Centrifugal Pump, Intake Manifold Connection, Water Jacket Connection, Cylinder, Valve Rocker Arm, Manifold, Radiator Connection, and Magneto.

V Type Motor, with Eight Cylinders

This illustration shows a V type motor with eight cylinders, fans, and many other parts: Gasoline Supply…

This illustration shows the baptismal font at Lydbury North in England.

Baptismal Font at Lydbury North

This illustration shows the baptismal font at Lydbury North in England.

This illustration shows the baptismal font at Claverly in England.

Baptismal Font at Claverly

This illustration shows the baptismal font at Claverly in England.

This illustration shows the baptismal font at Tidenham, near Chepstow, in England.

Baptismal Font at Tidenham

This illustration shows the baptismal font at Tidenham, near Chepstow, in England.

This illustration shows the baptismal font at Eastdown in England. It is made of stone and wood.

Baptismal Font at Eastdown

This illustration shows the baptismal font at Eastdown in England. It is made of stone and wood.

This illustration shows the baptismal font at Keysoe, c. 1200.

Baptismal Font at Keysoe

This illustration shows the baptismal font at Keysoe, c. 1200.

This illustration shows the baptismal font at Wistanstow in England.

Baptismal Font at Wistanstow

This illustration shows the baptismal font at Wistanstow in England.

This illustration shows the baptismal font at Smithfield, London, England.

Baptismal Font at Smithfield

This illustration shows the baptismal font at Smithfield, London, England.

The Gadwall (Chaulelasmus streperus) is a widely distributed duck, appearing throughout Europe and N. America, as well as in Asia and the north of Africa. It is a freshwater species, remarkable for the great development of the comb-like 'teeth' at the margin of the bill. It is 19-20 inches long, generally grayish, finely mottled, with chestnut wing coverts. The underside of the wing pure white, while the speculum of the drake is blue.

Gadwall Duck

The Gadwall (Chaulelasmus streperus) is a widely distributed duck, appearing throughout Europe and N.…

The bill of the Gadwall Duck, showing the comb-like 'teeth' that they are known for.

Bill of Gadwall

The bill of the Gadwall Duck, showing the comb-like 'teeth' that they are known for.

A Galley is a low, flat-built vessel furnished with one deck.It was primarily employed by the Romans, Genoese, Pisans, and Venetians. The Venetian galley was generally three-masted, and was usually around 160 feet long, 32 feet broad, and supplied with sixty-four oars, to each of which were chained six or seven slaves. Such galleys were equipped with powerful rams used for boarding and sinking enemy ships. Criminals in France and elsewhere were frequently condemned to serve at the oars in these craft. In modern speech, the term "galley" refers the common kitchen of a ship.

Galley (ship)

A Galley is a low, flat-built vessel furnished with one deck.It was primarily employed by the Romans,…

Also known as a Solan Goose (Sula bassana), the Gannet is a large marine bird which nests in scattered localities in most parts of the world. Its specific name refers to the fact that it has long been a denizen of Bass Rock -- a famous craggy islet on the coast of England. This bird also nests on Bird Rock in the gulf of St. Lawrence, and other species exist in the tropics. It belongs to the same sub-order as the cormorant, and may be recognized by the fact that, as in the latter, all four toes are united by a web. Its bill is long, strong, and compressed to a point. In adult life, the plumage is white, save for the black primaries and a buff patch on the head or neck; the young are dusky, and do not acquire the white plumage until their sixth year. Their nests contain only one egg.

Gannet

Also known as a Solan Goose (Sula bassana), the Gannet is a large marine bird which nests in scattered…

A type of Ganoid fish. Ganoid is an order of fishes included seven living genera, whose members are all found in fresh water. The members of these genera are distinguished from their nearest allies, the teleosteans, or bony fish, by the presence of a spiral valve in the intestine, the fact that the tail is frequently heterocercal or unequally lobed, the skeleton often, at least in part, cartilaginous, and the skin furnished with bony scales or scutes (ganoid scales). This particular type (Acipenser) is a Sturgeon.

Acipenser Sturio

A type of Ganoid fish. Ganoid is an order of fishes included seven living genera, whose members are…

A type of Ganoid fish. Ganoid is an order of fishes included seven living genera, whose members are all found in fresh water. The members of these genera are distinguished from their nearest allies, the teleosteans, or bony fish, by the presence of a spiral valve in the intestine, the fact that the tail is frequently heterocercal or unequally lobed, the skeleton often, at least in part, cartilaginous, and the skin furnished with bony scales or scutes (ganoid scales). This particular species is a Bow-fin.

Amia Occidentalis

A type of Ganoid fish. Ganoid is an order of fishes included seven living genera, whose members are…

A type of Ganoid fish. This particular species is a gar-pike.

Lepidosteus Occeus

A type of Ganoid fish. This particular species is a gar-pike.

A type of Ganoid fish. This particular species is a Spoonbill.

Polyodon Osseus

A type of Ganoid fish. This particular species is a Spoonbill.

A type of Ganoid fish. This particular species is a Reed fish.

Polypterus Bichir

A type of Ganoid fish. This particular species is a Reed fish.

A type of Ganoid fish. This particular species is a Reed fish.

Calamoichthys Calabaricus

A type of Ganoid fish. This particular species is a Reed fish.

A type of Ganoid fish.This particular species is a Shovel-beak.

Scaphirhynchus Platyrhynchus

A type of Ganoid fish.This particular species is a Shovel-beak.

This illustration shows a Clermont Gargoyle in France. Gargoyles, in Gothic architecture, are spouts projecting from the gutters of a building which carry the rain-water clear of the walls. Gargoyles are usually carved into different forms (animal, human, demonic, grotesque) and serve as a distinguishing feature of ecclesiastical architecture.

Clermont Gargoyle

This illustration shows a Clermont Gargoyle in France. Gargoyles, in Gothic architecture, are spouts…