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A spring vegetable native to most of Europe, northern Africa, and western Asia.

Bunch of Asparagus

A spring vegetable native to most of Europe, northern Africa, and western Asia.

There are several varieties of asparagus. The most popular varieties are Connover's Colossal and Giant. Asparagus season is in the spring.

Asparagus Crown for Lifting

There are several varieties of asparagus. The most popular varieties are Connover's Colossal and Giant.…

"A form of balance in which the weight of the body under examination is measured by the stretching (torsion) of an elastic wire in the form of a long spiral. A common use of the simple form of spiral balance is in determining the specific gravity of small fragments of minerals, which for this purpose are weighed first in the upper pan and then in that below, which is immersed in water." —Whitney, 1889

Spiral Balance

"A form of balance in which the weight of the body under examination is measured by the stretching (torsion)…

"Suspend two similar spring balances, A and B, from any convenient support, as shown. From the wooden rod carried by their hooks, suspend a known weight. Be sure that the dynamometers hang vertical, and therefore parallel. Record the reading of the dynamometers." -Avery 1895

Two Spring Balances

"Suspend two similar spring balances, A and B, from any convenient support, as shown. From the wooden…

A branch from the Capparis jamaicensis tree, native to Florida during the spring season.

Branch of Capparis Jamaicensis

A branch from the Capparis jamaicensis tree, native to Florida during the spring season.

"The Crocus is well known as one of our earliest spring flowers, producing dense masses of richly colored blossoms. The more thickly they are planted, the greater the effect produced."—Heinrich, 1887

Crocuses

"The Crocus is well known as one of our earliest spring flowers, producing dense masses of richly colored…

"The plate A is 46 inches in diameter, and is composed of gun metal. These were put on by original graduation, mainly on the plan of Edward Troughton. One very great improvement in this engine is that the axis B is tubular, as seen at C. The object of this hollow is to receive the axis of the circle to be divided, so that it can be fixed flat to the plate by the clamps E, without having first to be detached from the axis and other parts to which it has already been carefully fitted. This obviates the necessity for resetting, which can hardly be done without some error. D is the tangent screw, and F the flame carrying it, which turns on carefully polished steel pivots. The screw is pressed against the edge of the plate by a spiral spring acting under the lever G, and by screwing the lever down the screw can be altogether removed from contact with the plate." — Encyclopedia Britannica, 1893

Dividing Engine

"The plate A is 46 inches in diameter, and is composed of gun metal. These were put on by original graduation,…

"The simplest way of measuring a force is to use a dynamometer, of which the spring-balance is a familiar example. The dynamometer may be graduated in pounds, grams, poundals, or dynes." — Avery, 1895

Dynamometer

"The simplest way of measuring a force is to use a dynamometer, of which the spring-balance is a familiar…

F, fixed coil; D, movable coil; S, spiral spring; T, Torsion head; MM, Mercury cups; I, Index needle.

Siemens Electrodynamometer

F, fixed coil; D, movable coil; S, spiral spring; T, Torsion head; MM, Mercury cups; I, Index needle.

Silver Springs is a clear basin within the St. Johns River in Florida. It is famed for its depth and clarity of the water. This spring is seventy feet deep, as clear as crystal, and remarkably fresh and cool.

Silver Springs, Florida

Silver Springs is a clear basin within the St. Johns River in Florida. It is famed for its depth and…

"Nature, pervades the air, where grow the modest blue-eyed violets, the fragrant trailing arbutus, spicy and sweet, the funny Jack-in-the-pulpit, without which no collection of wild flowers would be complete, and there also maybe found the rare and beautiful bloodroot, whose stay is so short one can scarce catch a glimpse of its pure, white blossoms ere they vanish." -Beard, 1906

Bloodroot flower

"Nature, pervades the air, where grow the modest blue-eyed violets, the fragrant trailing arbutus, spicy…

A natural fountain of water springing out of a body of water.

Fountain

A natural fountain of water springing out of a body of water.

"A key is used to turn the cone, B. By doing so it wraps the chain around the cone and tightly coils the spring inside the barrel, A. The spring draws the chain off of the cone turning the barrel." —Quackenbos 1859

The Fusee

"A key is used to turn the cone, B. By doing so it wraps the chain around the cone and tightly coils…

A geyser is a hot spring characterized by intermittent discharge of water ejected turbulently and accomplished by a vapour phase.

Giantess Geyser, Yellowstone Park

A geyser is a hot spring characterized by intermittent discharge of water ejected turbulently and accomplished…

"The click barrel-ratchet R is set upon another larger ratchet-wheel, with its teeth pointing the opposite way, and its click rT is set in the clock-frame. That ratchet is connected with the great wheel by a spring ss' pressing against the two pins s in the ratchet and s' in the wheel. When you wind up the weight, the click Tr prevents the ratchet from turning back or to the right; and as the spring ss' is kept by the weight in a state of tension equivalent to the weight itself it will drive the wheel to the left for a short distance, when its end s is held fast, with the same force as if that end was pulled forward by the weight; and as the great wheel has to move very little during the short time the clock is winding, the spring will keep the clock going long enough." — Encyclopedia Britanica, 1893

Harrison's Going-Ratchet

"The click barrel-ratchet R is set upon another larger ratchet-wheel, with its teeth pointing the opposite…

Hulda, the Norse goddess of spring sits on the throne in her cave. A shepherd finds this cave and as a reward, Hulda gives him anything in the cave. He chooses the blue flowers she holds in her hand.

Hulda and the Shepherd

Hulda, the Norse goddess of spring sits on the throne in her cave. A shepherd finds this cave and as…

"Shot-pouches. A, pouch for one size of shot: a, pouch; b, charger with gates c, c'; d, spring which holds the gate c closed until the lever e, which shuts the gate c' and opens c, is depressed, when the charge filling the nozzle between the two gates is released. The charge can be lessened by placing the gate c in the slot f." -Whitney, 1911

Hunting Shot Pouch

"Shot-pouches. A, pouch for one size of shot: a, pouch; b, charger with gates c, c'; d, spring which…

"Shot-pouches. ... B, pouch (shot-belt) for two sizes of shot: a, a', pouches; b, strap for attachment to the person of the sportsman; c, c', nozzles, each with a single spring gate. The charge is measured in the detachable charger d." -Whitney, 1911

Hunting Shot Pouch

"Shot-pouches. ... B, pouch (shot-belt) for two sizes of shot: a, a', pouches; b, strap for attachment…

"On the top of a short pillar is placed a card, and on the card a brass ball. Beside the pillar is fixed a steel spring, with an apparatus for drawing it back. If the spring is drawn back and the suddenly released, it will drive the card from the top of the pillar, while the ball in consequence of its inertia will retain its place." —Quackenbos 1859

Inertia Demonstration

"On the top of a short pillar is placed a card, and on the card a brass ball. Beside the pillar is fixed…

"A mountain and spring, showing how the principle of the syphon operates to produce the effect described. Suppose there is a crevice, or hollow in the rock from a to b, and a narrow fissure leading from it, in the form of the syphon, b c. The water from the rill fe, filling the hollow, up to the line a d, it will then discharge itself through the syphon, and continue to run until the water is exhausted down to the l g of the syphon b, when it will cease. Then the water from the rills continuing to run until the hollow is again filled up to the same line, the syphon again begins to act, and again discharges the contents of the reservoir as before, and thus the spring p, at one moment flows with great violence and the next moment ceases entirely." —Comstock, 1850

Intermitting Spring

"A mountain and spring, showing how the principle of the syphon operates to produce the effect described.…

The pole lathe of 1800 is a wood turning tool that uses a pole as a return spring for the treadle (foot pedal).

Pole Lathe

The pole lathe of 1800 is a wood turning tool that uses a pole as a return spring for the treadle (foot…

May Day marks the end of the winter half of the year in the Northern hemisphere, and it has traditionally been an occasion for popular and often raucous celebrations, regardless of the locally prevalent political or religious establishment. Traditional English May Day rites and celebrations include Morris dancing, crowning a May Queen and celebrations involving a Maypole.

May Day Celebration

May Day marks the end of the winter half of the year in the Northern hemisphere, and it has traditionally…

An illustration of a female spring cankerworm moth.

Spring Cankerworm Moth (Female)

An illustration of a female spring cankerworm moth.

An illustration of a male spring cankerworm moth.

Spring Cankerworm Moth (Male)

An illustration of a male spring cankerworm moth.

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal herb, and the leaves are commonly eaten by caterpillars. They reach up to 1 foot in height.

Pulmonaris Officinalis

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal…

"A press or stamp bearing dies on its jaws, or a die and a bed, for imprinting or embossing any device upon paper or a plastic material, as lead. It is much used to form the seals of seal-locks, and may be a kind of heavy pincers. a and a1, dies; b (dotted outline), bar sliding in guide c; d (dotted outline), abutment for coiled spring e; f, lever with cam g at the bottom. The lever moved in the direction in dicated by the arrow forces a down upon a1; when it is released the spring reverses the motion." —Whitney, 1889

Seal Press

"A press or stamp bearing dies on its jaws, or a die and a bed, for imprinting or embossing any device…

Spring scales are used to weigh articles in which a high degree of exactness is not required. Spring scales measure weight only, not mass.

Spring Scales

Spring scales are used to weigh articles in which a high degree of exactness is not required. Spring…

A coiled wire spring, used for various purposes.

Spring

A coiled wire spring, used for various purposes.

A long, spiral spring.

Spring

A long, spiral spring.

A flow of water from the interior of the earth, caused by the water resulting from rain or snow.

Spring

A flow of water from the interior of the earth, caused by the water resulting from rain or snow.

A spring with a bird in front of it.

Spring

A spring with a bird in front of it.

A form of spring safety-valve, in which a series of bent springs h h h are placed alternately in opposite directions, their extremities sliding upon the rod i, and the springs being kept down by the crossbar k; a being the valve, c the valve-seat, and b b part of the boiler.

Lever Spring Safety-valve

A form of spring safety-valve, in which a series of bent springs h h h are placed alternately in opposite…

A spring made from runoff water in a mountain.

Intermittent Spring

A spring made from runoff water in a mountain.

A spring in the shape of a coil.

Multiple Purpose Spring

A spring in the shape of a coil.

Three spring-balances hooked together around a small ring.

Spring-balances

Three spring-balances hooked together around a small ring.

A man using a well to draw water from the ground.

Well

A man using a well to draw water from the ground.

This wood carving represents spring which is symbolized by forty-seven varieties of plants.

Wood Carving

This wood carving represents spring which is symbolized by forty-seven varieties of plants.