"Muscles of a bird (accipiter nisus), after Carus, Tab. Anat. Comp., 1828, pl. 4.   a, pharynx; b, trachea; e, hyoid bone; d, ear; e, humerous; f, radius; g, ulna; h, radial finger; i, tibia; k, metatarsus; l, hind toe; m, inner toe; n, middle toe; o, outer toe. 1, biventer cervicis, with central tendon 1 a, and upper 1 b, and lower 1 c, belly. 2, complexus. 3, flexor capitis lateralis. 4, flexor longus capitis. 5, extensor magnus cervicis. 6, descendens cervicis. 7, 7, semispinales. 8, flexorsuperior capitis. 9, flexor inferior or longus capitis. 10, 10, intertransversales. 11, levator coccygis. 12, depressor coccygis. 13, cruro-coccygeus (ilio-coccygeus?). 14, pubo-coccygeus. 15 ischio-coccygeus. 16, lateralis quartus (quadratus coccygis, to tail-feathers). 17, obliquus externus abdominis. 18, cucullaris (trapezius). 19, serratus magnus. 20, pectoralis major. 21, a, b, latissimus dorsi. 22, deltoid. 23, suprascapular. 24, coraco-brachialis. 25, biceps brachii. 26, supinatpr longus. 27, anconeus longus (part of "triceps"). 28, anconeus brevis. 29, anconeus brevissimus. 30 a, 30 b, tensor patagii, carpal and radial parts. 31, tensor patagii posterior. 32, extensormetacarpi longus. 33, extensor metacarpi brevis. 34 a, flexor digitorum sublimis. 34 b, flexor digitorum profundus. 34 c, flexor metacarpi radialis. 36, flexor (meta-) carpi ulnaris. 37, glutaeus maximus. 38, adductor femoris primus. 39, sartorius. 40, latissimus femoris. 41, gracilis = ambiens: only its tendon in sight. 42, vastus; 43, iceps cruris. 44, semimembranosus. 46,46,47, gastrocnemius. 48 digastricus (chief opener of the mouth). 49, temporal. 50, long ligament. 51, cutaneous muscle of scalp. 52, masseter. 53, a muscle of the hyoid bone. 54, tibialis anticus. 55, tibialis posticus. 56, extensor hallucis. 57, flexor hallucis. 58, flaxor digitorum profundus or perforans, seen in various places: long and short head, and several tendons. 59, extensor longus digitorum, tendons seen in various places 60, abductor digiti interni. 61,61,61, flexores digitorum perforati. 62, peronaeus. 63, abductor minimi digiti. 64, abductor hallucis." Elliot Coues, 1884

Eurasian Sparrowhawk Muscles

"Muscles of a bird (accipiter nisus), after Carus, Tab. Anat. Comp., 1828, pl. 4. a, pharynx; b, trachea;…

"But perhaps the most effective and suitable employment of iron is shown in connection with glass, as has been exemplified in the temporary buildings for exhibitions, for which the Great Exhibition in London, in the year 1851, furnished the model which has so often been followed subsequently. This building was afterwards removed to Sydenham, and is now known as the Crystal Palace. In this structure the walls as well as the vaulted roof consist of glass inserted between iron girders, after the pattern of large conservatories and winter-gardens, especially of that in the Champs Élydées at Paris, which is no longer in existence. Although this building scarcely seems like an architectural construction, but appears to form a peculiar specialty, still an impression is produced, which is hitherto unparalleled by its transparent termination in all directions, and by its dimensions, which have never been before attained in enclosed spaces. The distinguishing height of the main body of the building, which is divided into several naves and galleries , and if the loftier transept, which is 174 English feet high, is too considerable to recall the conservatory, which first suggested the idea to Paxton of constructing such a building on a large scale for the Great Exhibition. The visible stability of the system of construction gives a certain feeling of security as a counterpoise to the astonishment which the enormous size creates. On the other hand it is not to be denied that artistic execution in the forms of the constructive parts is wanting, though many difficulties would perhaps have had to be overcome to attain this without the structure suffering as regards solidity. These constructive elements, moreover, are not used as leading to further æsthetic development, so that a real artistic value can only be attributed to the novel impression of the whole, which is produced by the large dimensions and transparent walls."

Crystal Palace at Sydenham

"But perhaps the most effective and suitable employment of iron is shown in connection with glass, as…

George Washington, born in Virginia, February 22nd, 1732 was the eldest of five children. He was inquisitive, docile and diligent with a talent for leadership. His first surveying job established his reputation in that field. At nineteen, he was appointed military inspector with the rank of major. He continued for many years of service in his military career finally retiring to private life in 1758. On January 6th, 1759, he married Mrs. Martha Custis, a widow. With the revolution approaching he was commissioned to take command of the army. He leadership skills were to carry him though the years of difficulty ahead. The succesful siege of Yorktown was a victory that put a finish to the war. On the 25th of November, 1783, a peace treaty with Britain was ratified. Once again he retired to private life, spending the next several years devoted to his family and farm. In 1787 he was chosen as president of the convention to revise the federal system held at Philadelphia. With the new constitution about to go into operation, Washington was unanimously chosen as the first president of the United States.

George Washington

George Washington, born in Virginia, February 22nd, 1732 was the eldest of five children. He was inquisitive,…

John F. Oberlin was a Alsatian pastor and philanthropist. Oberlin College, an American liberal arts college in Ohio, was named for him upon its founding in 1833. In 1766, after studing theology in his hometown, he became pastor of Waldersbach, a remote and barren region in Steintal, a valley in the Vosges on the borders of Alsace and Lorraine. He set himself to better the material, and spiritual, condition of the inhabitants. He began by constructing roads through the valley and erecting bridges, inciting the peasantry to the enterprise by his personal example. He introduced an improved system of agriculture. Substantial cottages were erected, and various industrial arts were introduced. He founded an itinerant library, originated infant schools, and established an ordinary school at each of the five villages in the parish. In the work of education he received great assistance from his housekeeper, Louisa Scheppler. He died in 1826, and was interred with great manifestations of honor and affection at the village of Urbach.

John Frederick Oberlin

John F. Oberlin was a Alsatian pastor and philanthropist. Oberlin College, an American liberal arts…

This railroad car is a vehicle that is used for the carrying of cargo or passengers. These cars can be coupled together into a train and hauled by a locomotive.

Union Park Railway Car on a Rail Transport System

This railroad car is a vehicle that is used for the carrying of cargo or passengers. These cars can…

This portable wagon is a loading machine that brings together a swinging table arranged to be lowered flat on the ground. Horses can pass over it with ease, holding a lower hopper onto which the table dumps its load, and a conveyer which elevates to receive the contents of the conveyer.

Portable Wagon Loading Machine

This portable wagon is a loading machine that brings together a swinging table arranged to be lowered…

This vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. This basic system, used a brake lever, and road wheel brakes. The heat energy is then dissipated into the atmosphere.

Running Gear Vehicular Brake

This vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. This basic…

A fire door is a type of door or movable barrier used as part of a passive fire protection system within buildings to prevent the spread of fire or smoke between separate sections. It is usually the only means of allowing people to pass through a fire resistant wall.

Fire Door

A fire door is a type of door or movable barrier used as part of a passive fire protection system within…

An automatic lubrication system often referred to as a centralized lubricator comprises a controller, pump, reservoir, metering valves, fittings and feed lines. It typically delivers a controlled amount of lubricant in the forms of grease or oil to multiple, specific locations on a machine while the machine is operating at specific times from a central location.

Automatic Feeder for Lubricating Materials

An automatic lubrication system often referred to as a centralized lubricator comprises a controller,…

This sugar cane car transport is the conveyance of sugar can by means of wheeled vehicles running on steel rails. Tracks consist of steel rails running on sleepers and ballast. Sometimes there is also a signaling system.

Sugar Cane Car

This sugar cane car transport is the conveyance of sugar can by means of wheeled vehicles running on…

A steam generator is the term used to describe a type of boiler used to produce steam for climate control and potable water heating in railroad passenger cars. The output of a railroad steam generator is low pressure, saturated steam that is passed through a system of pipes and conduits.

Steam Generator

A steam generator is the term used to describe a type of boiler used to produce steam for climate control…

A railway electrification system supplies electrical energy to railway locomotives and multiple units so that they can operate without having an on board prime mover. There are several different electrification systems in use throughout the world. Railway electrification has many advantages but requires heavy capital expenditure for installation.

Closed Conduit Electric Railway

A railway electrification system supplies electrical energy to railway locomotives and multiple units…

The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing ethylene glycol, to transfer pressure from the controlling unit, which is usually near the operator of the vehicle, to the actual brake mechanism, which is usually at or near the wheel of the vehicle. Within a hydraulic brake system, as the brake pedal is pressed/ brake lever is squeezed, a push rod exerts force on the piston(s) in the master cylinder causing fluid from the brake fluid reservoir to flow into a pressure chamber through a compensating port which results in an increase in the pressure of the entire hydraulic system. This forces fluid through the hydraulic lines toward one or more calipers where it acts upon one or two additional caliper pistons secured by one or more seated O-rings which prevent the escape of any fluid from around the piston.

Fluid Pressure Brake Apparatus

The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing…

This chair features a mechanical system that spins an idler gear while the user is rocking back and forth to propel a fan located above the users headrest

Automatic Fan for Rocking Chair

This chair features a mechanical system that spins an idler gear while the user is rocking back and…

An index is a system used to make finding information easier. In a traditional back-of-the-book index the headings will include names of people, places and events, and concepts selected by a person as being relevant and of interest to a possible reader of the book.

File Index

An index is a system used to make finding information easier. In a traditional back-of-the-book index…

A pulley, also called a sheave or a drum, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion. Two or more pulleys together are called a block and tackle.

Pulley

A pulley, also called a sheave or a drum, is a mechanism composed of a wheel on an axle or shaft that…

A system for manual delivery of mail to a series of recipients includes a stack of mail holders each comprising a front flap, a back flap and a central fold.

Mail Bag Delivering Machine

A system for manual delivery of mail to a series of recipients includes a stack of mail holders each…

In electrical grids, a power system network integrates transmission grids, distribution grids, distributed generators and loads that have connection points called busses.

System of Electrical Distribution

In electrical grids, a power system network integrates transmission grids, distribution grids, distributed…

Turnbuckle is a screw device to adjust the tension or length of ropes, cables, tie rods, and other tension system.

Turnbuckles

Turnbuckle is a screw device to adjust the tension or length of ropes, cables, tie rods, and other tension…

The waste water from the various appliances, fixtures, and taps is transferred to the waste and sewage removal system via the sewage drain system. This system consists of larger diameter piping, water traps, and is well vented to prevent toxic gases from entering the living space. The plumbing drains and vents article discusses the topic further, and introduces sewage treatment.

Waste Water Trap Pipe

The waste water from the various appliances, fixtures, and taps is transferred to the waste and sewage…

This is the fastening for a shoe, A shoe is an item of footwear evolved at first to protect the human foot and later, additionally, as an item of decoration in itself.

Shoe Fastener Device

This is the fastening for a shoe, A shoe is an item of footwear evolved at first to protect the human…

Bicycle brake systems are used to slow down or brake a bicycle. There have been various types through history, and several are still in use today.

Bicycle Chain Brake System

Bicycle brake systems are used to slow down or brake a bicycle. There have been various types through…

The valve closet has a valve or flap at the exit of the bowl with a water-tight seal to retain a pool of water in the pan. When the toilet is flushed, the valve is opened and the water in the pan flows rapidly out of the bowl into the drains, carrying the waste with it.

Water Valve Closet

The valve closet has a valve or flap at the exit of the bowl with a water-tight seal to retain a pool…

The hardening process for drop hammer dies is done by containing the hardening liquid, usually water, is contained in a containment vessel. The liquid is pumped into the container to cool the metal.

Hardening Dies for Drop Hammers

The hardening process for drop hammer dies is done by containing the hardening liquid, usually water,…

The air enters the sand blast through the pipe, at the same time, the sand enters the chamber by lifting the second stop. At the very top of the chamber, sand is fed into the system. The lever is pulled to make the air and sand mixture go through the flexible hose. Sand blasting is used to clean metal.

Metal Cleaning using Sand Blast

The air enters the sand blast through the pipe, at the same time, the sand enters the chamber by lifting…

A cable system telegraph repeater device. The telegraph repeater device is used to send and receive telegrams in Morse code.

Cable System Telegraph Repeater

A cable system telegraph repeater device. The telegraph repeater device is used to send and receive…

Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have many uses.

Rotary Water Heater

Water heating is a thermodynamic process using an energy source to heat water above its initial temperature.…

The present invention relates to a printing machine for printing price tickets, in which is combined the mechanism of a conventional ticket printing machine and that for magnetic recording which can be linked directly with a POS system.

Ticket Printing Machine

The present invention relates to a printing machine for printing price tickets, in which is combined…

"The micrometer box, and of course with it the whole system of spider webs, is moved by the screw s, whilst the measuring web is independently moved by the screw S." —Encyclopaedia Brittannica, 1910

Repsolds Micrometer Box for Telescope Cape Observatory

"The micrometer box, and of course with it the whole system of spider webs, is moved by the screw s,…

"If y be the object the image appears to a normal eye situated behind the system L with passive accommodation at a very great distance under the angle w'. Since H' P= F O, = y, from the focal length of the simple microscope is the image side focal length." —Encyclopaedia Britannica, 1910

Optical Position and Size of Image Through Magnifying Glasses

"If y be the object the image appears to a normal eye situated behind the system L with passive accommodation…

This is the illustration of the speaker implement to a burglar alarm equivalent, designed to alert the user to a specific danger.

Alarm Signal Device

This is the illustration of the speaker implement to a burglar alarm equivalent, designed to alert the…

"Showing a system with chromatic difference of spherical aberration. O" ₌ image of O for red light; O'" for blue. The system is under—corrected for red, and over—corrected for blue rays." —Encyclopaedia Britannica, 1910

Light Correction of Blue and Red Lights using Spherical Lens

"Showing a system with chromatic difference of spherical aberration. O" ₌ image of O for red light;…

A low power steam engine. The piston inside cylinder A moves the wheel, generating power at 100 horsepower or less. The steam from the system escapes the from the piston, moving the wheel.

Low Power Simple Steam Engine Diagram

A low power steam engine. The piston inside cylinder A moves the wheel, generating power at 100 horsepower…

An illustration of the water entering and exiting the condenser through pump. The cooling water enters the circulating pump R, exiting at pipe M. The steam enters at pipe S, and is cooled, or condensed. The condensed steam enters pump B, removing the air in the system.

Steam Engine Condenser with Pumps

An illustration of the water entering and exiting the condenser through pump. The cooling water enters…

A sliced view of a jet condenser with pump. The steam enters at D, while cold water enters at A. The steam and water mixes in E, then enters the pump chamber F. The water mixture is pumped out of the system through pipe G.

Steam Engine Jet Condenser with Pump

A sliced view of a jet condenser with pump. The steam enters at D, while cold water enters at A. The…

A circulatory and nervous system of Sphaerotherium obtusum, a South African millipede.

Diagram of Nerovous and Circulatory System of Sphaerotherium Obtusum Millipede

A circulatory and nervous system of Sphaerotherium obtusum, a South African millipede.

A light steel mining cage and car used to raise and lower cars in gold and silver mines. The car is loaded with the minerals from the mined and raised to the surface by a hoist.

Light Steel Safety Mining Cage and Car for Gold and Silver Mines

A light steel mining cage and car used to raise and lower cars in gold and silver mines. The car is…

A diagram illustrating cooling steam exhaust of steam engine using a water tower. The water is pumped out of the water tower using a motor into the condenser. The steam enters the condenser to be cooled by the water flowing by the adjacent pipe.

Water Tower Condenser Steam Cooling System in Engine Room

A diagram illustrating cooling steam exhaust of steam engine using a water tower. The water is pumped…

An illustration of Butler's motor tricycle. The tricycle operated by a throttle valve lever and a foot controlled lever to lower or raising the rear driving wheel. The vehicle was not fitted with a braking system, and operated at 3 to 10 mph.

Butler's Gas Operated Motor Tricycle

An illustration of Butler's motor tricycle. The tricycle operated by a throttle valve lever and a foot…

This is a plumbing fixture, with disposing system, intended for the disposal of bodily wastes.

Bathing Device

This is a plumbing fixture, with disposing system, intended for the disposal of bodily wastes.

A device for slowing or stopping motion, as of a vehicle, especially by contact friction.

Brake Mechanism

A device for slowing or stopping motion, as of a vehicle, especially by contact friction.

A device, such as a siren, used in announcing the outbreak of a fire.

Fire Alarm

A device, such as a siren, used in announcing the outbreak of a fire.

An instrument, usually resembling a pair of dividers or compasses with curved legs, for measuring the diameter or thickness of bodies, as of work shaped in a lathe or planer, timber, masts, shot, etc.

Micrometer Calipers

An instrument, usually resembling a pair of dividers or compasses with curved legs, for measuring the…

A vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. The basic hydraulic system, most commonly used, usually has six main stages. The brake pedal, the brake boost (vacuum servo), the master cylinder, the apportioning valves and finally the brakes themselves.

Automobile Brake

A vehicle brake is used to slow down a vehicle by converting its kinetic energy into heat. The basic…

An apparatus used to oil the crank pin of the belt drive system. The oil cup is filled with lubricant and travels through the small pipe, making the belt drive system to run smoothly.

Belt Drive Oiling Apparatus

An apparatus used to oil the crank pin of the belt drive system. The oil cup is filled with lubricant…

An illustration of a rotary steam engine. The steam turbine system was invented by Branca in 1629. Steam spins the turbine to turn a series of gears, generating power.

Steam Rotary Engine

An illustration of a rotary steam engine. The steam turbine system was invented by Branca in 1629. Steam…

An illustration of thermodynamic vaporization of water in a cylinder with piston. The cylinder filled with water is heated, and gradually turns into the vapor. As the water is heated, the piston moves up the cylinder. Cylinder B is saturated vapor, system with vapor and liquid, while the cylinder C is superheated vapor, containing only gas.

Thermodynamic Vaporization Diagram using Water in Cylinder with Piston

An illustration of thermodynamic vaporization of water in a cylinder with piston. The cylinder filled…

A piston system from a quadruple expansion engine showing the movement of steam. Steam first enters the first piston, then expanded into the first intermediate piston. This pushes the piston down, then the steam enters the second intermediate to push the piston up. The steam then enters the low piston, where the steam exits the system.

Quadruple Expansion Engine Piston

A piston system from a quadruple expansion engine showing the movement of steam. Steam first enters…

A pulley system used to reduce motion between the piston and the indicator of the steam engine. The indicator is attached by a string on the curved bottom triangle. As the piston moves, the string is pulled to record the pressure of the steam.

Reducing Motion of Piston and Indicator using Brumbo Pulley

A pulley system used to reduce motion between the piston and the indicator of the steam engine. The…

An illustration of the steam engine with Walschaert gear system on rail tracks. The piston moves the long shaft connected to the wheel. The lever adjusts the rods on top up and the lower ones down to rotate the wheels opposite from the arrows.

Steam Engine with Walschaert Gear on Railroad

An illustration of the steam engine with Walschaert gear system on rail tracks. The piston moves the…

An illustration of a Corliss steam engine to generate 5000 kW of electricity. The turbines to create electricity is located on the right hand side and the large circular casing in the left. The steam enters the system at a high pressure to turn the turbines.

5000 kW Corliss and Curtis Steam Engine for Electric Generation

An illustration of a Corliss steam engine to generate 5000 kW of electricity. The turbines to create…

A system of ordered marks at fixed intervals used as a reference standard in measurement

Scientific Scale

A system of ordered marks at fixed intervals used as a reference standard in measurement

A smoothbore gun that fires shot over short ranges. Also called scattergun.

Military Shotgun

A smoothbore gun that fires shot over short ranges. Also called scattergun.

An instrument for measuring or testing.

Instrument Panel Gauge

An instrument for measuring or testing.

A shout or bell to warn that fire has broken out.

Fire Alarm

A shout or bell to warn that fire has broken out.

Firearm is a device which projects either single or multiple projectiles at high velocity through a controlled explosion. The firing is achieved by the gases produced through rapid, confined burning of a propellant.0

Military Firearm

Firearm is a device which projects either single or multiple projectiles at high velocity through a…

A metallic cartridge used in small arms and small artillery pieces.

Military Shell

A metallic cartridge used in small arms and small artillery pieces.

A conveyor system is a common piece of mechanical handling equipment that moves materials from one location to another. Conveyors are especially useful in applications involving the transportation of heavy or bulky materials.

Four Drum Conveyor

A conveyor system is a common piece of mechanical handling equipment that moves materials from one location…

This receptacle consists of the metal box designed for connections to a wiring system.

Outlet Box

This receptacle consists of the metal box designed for connections to a wiring system.

A shaft in a building which serves as an air passage in a building.

Ventilation Shaft

A shaft in a building which serves as an air passage in a building.