A ship's rudder indicator is used for measuring the angle of slope or pitch of the vessel. The information can be used to adjust the steering of the ship to give safe navigation. The rudder indicator transmitter once contained in this box was battery operated, according to the label inside this box. Box, wooden, used to store a battery operated Siemen's ship's rudder indicator. Made in the United Kingdom. Descriptive leaflet glued inside hinged lid. Lid secured by hooked catch. Brass latch. Metal mounting plate. Hole drilled in back. Dovetail joints. flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, siemen's brothers london, siemen's rudder indicator box, nautical instrument for measuring pitch or slope, scientific instrument box, navigational instrument box

Balancing resistances in a varnished timber box. Black-painted metal lid holds four decade selector switches and three terminal posts. Lid attached with 6 knirled knobs. Instrument type 1370.Serial Number 142.scientific instrument, decade resistance box

D.C. Volt ratio box. 100 OHMS per volt. Black terminal post pane;, inside a polished box with hinged lid and leather carry handle. Serial Number: 3021scientific instrument, volt ratio box, physics, laboratory, electrical instrument, electrical engineering

This hospital / medical instrument was used in the Tawonga District General Hospital which was built in the 1950s specifically for the increase in population due to the Kiewa Hydro Scheme. The kit may have been used by the doctor when on home visits.Historical: Shows the development of scientific medical equipment. Provenance: Used in the Tawonga District General Hospital which was remote and therefore required good equipment.Red cardboard box with slide out tray holding 10cc syringe and 9 needles and stillett. The syringe has a glass cylinder with measurements marked and a plunger attached to a steel rod with 2 rings for the fingers on the side and 1 ring at the end. It is held in the box by two cardboard flaps. The steel needles vary in shape and size. On the syringe lines and numbers up to 10 cc Top of box in hand writing using pencil: Aspiration Syringe 10 ml and H/0/ and 41/6medical equipment. hospital equipment. mt beauty. tawonga. syringe. needles.

This medical instrument was used in the Tawonga District General Hospital which was built in the 1950s specifically for the increase in population due to the Kiewa Hydro Scheme.Historical: Shows the development of scientific hospital equipment. Provenance: Used in the Tawonga District General Hospital which was remote and therefore required good equipment. In a white cardboard box 2 metal instruments. One is a pair of scissors with 'teeth' at the handle end and a bow at the instrument end when the ends meet The scissors are bent before the pivot. The other instrument is a long rod with a screw at one end that turns the other end around. This other end has a funnel that comes to a point. A holding instrument used during the operation.On box, in pencil "Mrytleford Clinic' / Pile Drivermedical instrument. hospital equipment. tawonga. mt beauty. haemorrhoid, myrtleford

This medical instrument was used in the Tawonga District General Hospital which was built in the 1950s specifically for the increase in population due to the Kiewa Hydro Scheme.Historial: Shows the development of scientific hospital equipment. Provenance: Used in the Tawonga District General Hospital which was remote and therefore required good equipment.In wooden box with a sliding lid. Silver knife held by 2 wooden pieces with slots for knife to fit. Knife is surrounded by cotton wool. Knife is flat with wavy sides. Blade is flat with point.medical instrument. hospital equipment. tawonga. mt beauty. skin graft., knife. doctor

This medical / hospital equipment was used in the Tawonga District General Hospital which was built in the 1950s specifically for the increase in population due to the Kiewa Hydro Scheme.Historical: Shows the development of scientific hospital equipment. Provenance: Used in the Tawonga District General Hospital which was remote and therefore required good equipment.In yellow cardboard box with black writing. Hollow (loop) handle. Pivot is a screw so that the blade can be taken out. Blade has a hole for the screw. Has a shorter straight side and a longer side with teeth like a saw. It fits in a cavity shaped for the knife. Another cavity is next to it but is empty.Box: Eschmann Skin Graft Knife / Including ten sterile disposable blades. Followed by 3 other languages. Made in England hospital equipment. medical instrument. tawonga. mt beauty. knife. skin graft

This medical / hospital instrument was used in the Tawonga District General Hospital which was built in the 1950's specifically for the increase in population due to the Kiewa Hydro Scheme.Historical: Shows the development of scientific hospital equipment. Provenance: Used in the Tawonga District General Hospital which was remote and therefore required good equipment. Good condition and good interpretation capacity.Cardboard cream coloured box with brown label on front and sides. Inside the box is a stainless steel syringe with stainless steel needles and mounts. These items are packed in the appropriate sections inside the box.Label: 40 minim. / Ash Hypodermic Syringe / (Made in England) sic / Complete with Needles and Mounts / Chromium Plated / Sole Wholesale Distributors / The Amalgamated Dental Company, Limited, / 7 Swallow Street Piccadilly, London, W.1 On side of box in hand writing 'Dental Syringe' dental syringe, medical, hospital, ash hypodermic syringe

This medical / hospital instrument was used in the Tawonga District General Hospital which was built in the 1950's specifically for the increase in population due to the Kiewa Hydro Scheme. Previous UKV 325Historical: Shows the development of scientific hospital equipment. Provenance: Used in the Tawonga District General Hospital which was remote and therefore required good equipment. Good condition and good interpretation capacity.Brown cardboard box containing 3 clear glass instruments. Two have a sphere in the middle with a long thin hollow cylinder at one end and a similar one at the other end except this one continues into the sphere and ends in a hook. The other instrument consists of a hollow cylinder that curves at the bottom and goes into a hollow ball. The ball has one small hollow appendage coming out at an angle and another short wide round hollow cylinder at its top. Label at end of box hand written: "Used for croupette"Box label: 'Nebulizer for Croupette"nebulizer, medical, hospital, croupette, tawonga district hospital

The stereoscope was an interpretation device used to interpret aerial photography and the landscape. It was used by National Parks Victoria located at Mt Beauty to look at aerial photos so that they showed up the relief of the topography and therefore looked 3D.Used by National Parks Victoria staff located at the Mt Beauty office during the 1970's and early 1980's.Dark green wooden box with padded protection around the perimeter and on lid where 2 rectangular pieces of wood touch the stereoscope. The box is fitted with wooden dividers that fit around the stereoscope. The stereoscope is green metal with folding legs and sides attached to allow the stereoscope to sit on a surface. The instrument has 2 round glass ('mirrored viewing lens') cylinders eye distance apart, that allow light in from the side swinging doors. The amount of light is constricted by a rectangular piece of metal at the top of each leg. The box has swing clips used to close it and a metal swing handle all on the front side.The hinges are reinforced (and offer protection) by additional rubber pieces at each end. Inside the box is a brush made of bristle with a wooden handle - used for cleaning.Outside and top of box: written in black: No. 1026. On blue tape beneath: Mirror stereoscope 1026. written in black centre top of box: W10/WKA.0233. On front edge of box written in black: W10/WKA 0233. Inside box lid on silver plaque: Stereoscope Universal/ Made in / Australia / Die Casters Ltd. Victorianational parks victoria. stereoscope. aerial photographs. scientific instrument. mt beauty. 3d

A pocket magnifying glass was a versatile scientific tool. It was ideal for situations in which the specimen was too small to be observed under a magnifying glass and access to a larger microscope would have been impossible.It could be taken on field expeditions and used to examine botanical, zoological and mineralogical specimens. This small magnifying glass could be used for examining specimens of plants or rocks or jewellery.Simple,pocket microscopes had a significant impact on the the general public’s appreciation of both science and the natural world by making the microscopic world accessible and exciting.A small brass pocket magnifying glass with resting arm. The cardboard box is blue / black in colour.magnifying-glass scientific-instrument

Collected from the chemistry laboratory at School of Mines. The was being dismantled due to the cutbacks in funding to TAFE and science was no longer being taught. The Quickfit Chemistry Set was the most popular set for schools, colleges and universities. There are nine basic items. It allows the construction of at least eight combinations by adding sections together. A labelled diagram included in the box. Included in the box is a BRANNAN 76mm Immersion Glass Thermometer. These are also used in beer and wine making.Solid cardboard box with molded insert for glass instruments.Model No. 27BU/Mchemistry, ballarat school of minestafe, quickfit chemistry set, schools, colleges, universities, thermometer, brannan, immersion thermometer, scientific instrument

Used in Physics Laboratory at Ballarat School of Mines for calculating/confirming relative density (or the specific gravity) of given metal samples. This would have been in Elementary physics experiments.A set of seven 2-cm cubes, individually numbered 1 - 7, in a hinged-lid storage box with black surface finish.Number and metal of cubes: 1) Brass; 2) Lead; 3) Steel; 4) Copper; 5) Aluminium; 6) ? a ferrous alloy; 7) ? a ferrous alloy.physics, laboratory, ballarat school of mines, relative density, specific gravity, metal, elementary physics, brass, lead, steel, copper, aluminium, ferrous alloy

Sextant used by J P Larken, Government Marine SurveyorThe sextant has been the primary position fixing tool of the marine surveyor for 200 years used to measure angles between beacons or points for hydrographic surveys. A sextant in its own wooden box.On inside box lid; 'A. E. Parson surveying and scientific instrument maker, Queen Street, Melbournesextant, jp larken, marine surveyor

This pH meter was made in 1946 by Cambridge Scientific Instrument Co. Ltd. in London. The company was founded in 1881 and the owner eventually became Horace Darwin, the youngest son of the famous scientist Charles Darwin. It is a portable version that can be used on-site in many different situations. A similar instrument was used by the Chemistry Department of what is now the University of Cambridge. The science of pH measurement began in the 1910s and was further developed in 1926. The pH meter is an electronic scientific instrument used to determine the pH measurements of a solution accurately; the amount of acid and alkaline in it This measurement can have many other applications helping to maintain the appropriate balance for a particular result. For example, it can measure the pH of pharmaceutical medications, soil, swimming pool water and hair shampoos. This Cambridge portable electronic pH instrument was made in 1946 by a company specialising in scientific instruments. It is an early example of much smaller devices used today in many different fields including medicine, and the preservation and conservation of shipwreck artefacts. Flagstaff Hill Maritime Museum and Village's Curator uses a pH meter today in the conservation process of a historic cannon that was recovered from the 1839 wreck of the vessel 'Children'.Scientific instrument, electric Cambridge Portable pH Meter in a polished wooden box with compartments, fold-out doors, and leather carry handle. Includes blue covered Instruction manual with a 'Certificate of Test' inside, and chemicals. Electrodes mounted in compartment. The lid is separate from the base, attached by pins and hinges. A plate inside the lid gives instructions for 'Preparation for Use'. Made by the Cambridge Instrument Company, London, in 1946.Printed on plate: "Cambridge Instrument Co. Ltd, 13 Grosvenor Place, London, S.W.1' Certificate dated: "6-3- 46" (1946)flagstaff hill, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, ph meter, cambridge scientific instrument co. ltd, horace darwin, cambridge university, ph balance, scientific instrument, ph measurement

Negretti and Zambra 1850-1980s were optical instrument makers and mathematical instrument makers based in London, England. The firm of Negretti and Zambra was established in 1850 by Henry Negretti and Joseph Zambra who had formed a partnership. Their skill was immediately apparent when exhibiting at the 1851 Great Exhibition at Hyde Park, they were the only English instrument makers to receive a prize medal for meteorological instruments, resulting in their appointment as instrument makers to the queen, Greenwich observatory, and the British Meteorological Society. In 1853, when the Crystal Palace was re-erected in Sydenham, Negretti and Zambra became the official photographers of the Crystal Palace Company, which allowed them to photograph the interior and grounds of the new building. The firm made use of this access to produce a number of stereographs. Between 1855 and 1857 Negretti and Zambra commissioned photographer Pierre Rossier to travel to China to document the Second Opium War. Although Rossier subsequently was unable to accompany to Anglo-French forces in that campaign, he nevertheless produced a number of stereographs and other photographs of China, Japan, the Philippines and Siam (now Thailand), which Negretti and Zambra published and that represented the first commercial photographs of those countries. In 1856 Negretti and Zambra sponsored a photographic expedition to Egypt, Nubia and Ethiopia conducted by Francis Firth. In 1864 Negretti and Zambra (themselves) photographed Shakespeare's House at Stratford on Avon. A sepia photograph was then pasted onto card 4" × 2.5". This was then presented to visitors to the Crystal Palace to enable them to compare it with the model erected by Mr E. T. Parr in the Centre Transept. The card itself is headed "Crystal Palace April 23rd 1864." That year they also published a book, titled A Treatise on Meteorological Instruments, (which was reprinted in 1995). Throughout World War One Negretti and Zambra were entirely engaged in the production of various instruments for the Ministry of Munitions. They developed many instruments for the Air Ministry including a mercury-in-steel distance thermometer for taking the oil and air temperatures in aircraft which was patented in 1920. In 1946 the company went private and in 1948 the company was made public, and by 1950 Negretti and Zambra had 821 employees in Britain. In order to increase production and to safeguard future development in 1964, they purchased a modern factory at Aylesbury for all their production. In 1981 Negretti and Zambra were taken over by a group of financial institutions in the form of Western Scientific Instruments and in 1985 the company was acquired by Meggitt Holdings.The subject compass is just one type of the many marine and scientific, optical items this company produced over it’s life time. Negretti and Zambra were prolific manufactures of types of items as well as being very prominent in photography pioneering new innervation's and sponsoring expeditions to little known countries to document peoples daily lives and culture through photography.Azimuth compass on tripod in a fitted wooden box with a round spirit level included, lid of box has three indented circles where the legs of the compass fit when it is set up for use. Stamped "C.M.O. 9" on with Maker Negretti & Zambra London.flagstaff hill, warrnambool, flagstaff-hill, flagstaff-hill-maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, azimuth compass, nautical instrument, negretti & zambra london, navigational instrument, compass

This Sikes brass hydrometer was manufactured by the optical and scientific instrument makers Kasner & Moss of 17 Collins Street West, Melbourne, in the latter part of the nineteenth century. The firm adverted hydrometers, as well as optical instruments, as early as August 13th, 1864, in The Age, Melbourne. This hydrometer set was donated to Flagstaff Hill in 1979 by local wine and spirits merchants Lynch Bros of Fairy Street, Warrnambool. Giffen Russell had established the business in 1878, and Harry Lynch took it over in the 1930s, and after he passed away in 1953 Kevin Matthew Lynch became proprietor of K M Lynch Food and Liquor. The business closed in the 2010s. The hydrometer may date back to the establishment of the business in 1878, as Kasner & Moss were selling hydrometers in Melbourne from 1864. Hydrometers were used to measure the density, or relative density, of liquids from the late 1600s. In 1816 Bartholomew Sikes won the competition for the most useful accurate hydrometer. Hydrometers were commonly used by distillers, vintners, and brewers to establish accurate measures of alcohol concentration in their beverages. Following this manufacturing process, government inspectors and excise officers used them to check that the labelled indications of alcohol-proof were correct and that the right amounts of duty were being paid. This hydrometer and its fitted and hinged wooden container show signs of heavy and protracted use in a working environment. Although the instrument has some parts missing and has been recently repaired, the original quality of the inlaid box and the fine engraving on the instrument and the attachable weights, are indications of the hydrometer’s very real value when new. This Sikes hydrometer, bearing the maker's mark of “Kasner & Moss Melbourne” and the registered number “20373”, was presented to the purchasing public as a precision-made instrument designed for professional use. The Sikes hydrometer is of local significance because of its implied association with the alcohol trade in the southwest region of Victoria. It was donated by a family member of Lynch Bros, a local licensed outlet for wines and spirits in the period before the general relaxation of liquor licensing laws in the State of Victoria. It may have belonged to Griffin Russell who established the liquor store in 1878.Hydrometer; original Sikes brass hydrometer in a polished wooden case with an inlaid plaque on the lid. The brass float is a sphere with a thin flat upper stem and a short, lower stem with a bulb-shaped end. The upper stem is engraved scale on both sides with the numbers 1 to 10, and five divisions between each number. There are ten fixed pegs in the base to secure the thick brass horseshoe-shaped, numbered, various-sized weights (20, 30, 40, 80, 90); the free pegs would have originally stored another five weights (10, 50, 60, 70, and 100). The empty compartment in the box suggests another part in the initial set, probably a thermometer. The fitted, fabric-lined box has two brass closures and two brass hinges. The scientific instrument shows signs of heavy use and repairs. The Serial Number on the float matches the Serial Numbers on the weights. The plaque on the lid, the float and the weights have inscriptions. Made by Kasner & Moss, Melbourne. Plaque: “SIKES HYDROMETER / KASNER & MOSS / MELBOURNE” On float's lower stem: “SIKES 20373” On one thin edge of the float's scale, engraved in script “Kasner & Moss” and stamped “MELBOURNE”, and symbol“P” rotated 90 degrees. On the opposite thin edge of the float: “N20.373”, “SIKES”, “I P % II O” (in ornate capitals). Each weight has s unique number, and the same serial number “20373”.flagstaff hill, flagstaff hill maritime museum and village, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, sikes hydrometer, scientific instrument, pressure measurement, measuring instrument, ullage tool, customs, excise duty, tax, alcohol content, proof, calibrate, standard weights and measures, tariff, kasner & moss, scientific instrument makers, specific gravity, liquid density, alcohol testing, technology, alcohol measurement, proof spirit, wine and spirits merchants, local business, brass measuring instrument, k m lynch, giffen russell, harry lynch

Navigators use parallel rule with maps and charts for plotting a specific course on a chart. One long edge is used with the compass rose on the chart, aligning the centre of the rose with the desired direction around the edge of the rose. The compass bars are then ‘walked’ in and out across the map to the desired location so that lines can be plotted to represent the direction to be travelled. Kelvin Company History: The origins of the company lie in the highly successful and strictly informal relationship between William Thomson (1824-1907), Professor of Natural Philosophy at Glasgow University from 1846-1899 and James White, a Glasgow optical maker. James White (1824-1884) founded the firm of James White, an optical instrument maker in Glasgow in 1850 and was involved in supplying and mending apparatus for Thomson university laboratory and working with him on experimental constructions. White was declared bankrupt in August 1861 and released several months later. In 1870, White was largely responsible for equipping William Thomson laboratory in the new University premises at Gilmore hill. From 1876, he was producing accurate compasses for metal ships to Thomson design during this period and this became an important part of his business in the last years of his life. He was also involved in the production of sophisticated sounding machinery that Thomson had designed to address problems encountered laying cables at sea, helping to make possible the first transatlantic cable connection. At the same time, he continued to make a whole range of more conventional instruments such as telescopes, microscopes and surveying equipment. White's association with Thomson continued until he died. After his death, his business continued under the same name, being administered by Matthew Edwards until 1891 when he left to set up his own company. Thomson who became Sir William Thomson and then Baron Kelvin of Largs in 1892, continued to maintain his interest in the business after James White's death in 1884, raising most of the capital needed to construct and equip new workshops in Cambridge Street, Glasgow. At these premises, the company continued to make the compass Thomson had designed during the 1870s and to supply it in some quantity, especially to the Admiralty. At the same time, the firm became increasingly involved in the design, production and sale of electrical apparatus. In 1899, Lord Kelvin resigned from his University chair and became, in 1900, a director in the newly formed limited liability company Kelvin & James White Ltd which had acquired the business of James White. At the same time Kelvin's nephew, James Thomson Bottomley (1845-1926), joined the firm. In 1904, a London branch office was opened which by 1915 had become known as Kelvin, White & Hutton Ltd. Kelvin & James White Ltd underwent a further change of name in 1913, becoming Kelvin Bottomley & Baird Ltd. Hughes Company History: Henry Hughes & Sons were founded in 1838 in London as a maker of chronographic and scientific instruments. The firm was incorporated as “Henry Hughes & Sons Ltd” in 1903. In 1923, the company produced its first recording echo sounder and in 1935 a controlling interest in the company was acquired by S Smith & Son Ltd resulting in the development and production of marine and aircraft instruments. Following the London office's destruction in the Blitz of 1941, a collaboration was entered into with Kelvin, Bottomley & Baird Ltd resulting in the establishing “Marine Instruments Ltd”. Following the formal amalgamation of Kelvin, Bottomley & Baird Ltd and Henry Hughes & Sons Ltd in 1947 to form Kelvin & Hughes Ltd. Marine Instruments Ltd then acted as regional agents in the UK for Kelvin & Hughes Ltd who were essentially now a part of Smith's Industries Ltd founded in 1944 and the successors of S Smith & Son Ltd. Kelvin & Hughes Ltd went on to develop various marine radar and echo sounders supplying the Ministry of Transport, and later the Ministry of Defence. The firm was liquidated in 1966 but the name was continued as Kelvin Hughes, a division of the Smiths Group. In 2002, Kelvin Hughes continues to produce and develop marine instruments for commercial and military. This model parallel map ruler is a good example of the commercial diversity of navigational instruments made by Kelvin & Hughes after World War II. It was made in numbers for use by shipping after the second world war and is not particularly rare or significant for it's type. Also it was made no earlier than 1947 as the firms of Kelvin, Bottomley & Baird Ltd and Henry Hughes & Sons Ltd who took over from Smith & Sons were not amalgamated until 1947. It can therefor be assumed that this ruler was made during the company's transitional period to Kelvin & Hughes from Smith Industries Ltd.Brass parallel rule in wooden box with blue felt lining.Rule inscribed on front "Kelvin & Hughes Ltd" " Made in Great Britain"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, parallel rule, kelvin & hughes ltd, map ruler, plot direction, navigation, maps, echo sounder, kelvin & james white, lord kelvin, baron kelvin of largs, scientific instrument

A sextant is an astronomical instrument used to determine latitude and longitude at sea by measuring angular distances, especially the altitudes of the sun, moon, and stars. It is a doubly reflecting navigation instrument and used mainly by sailors to measure the angular distance between two visible objects. The name comes from the Latin sextans, or “sixth part of a unit,” because the sextant’s arc can be 60° or 120° of a circle depending on the model used. The primary use was to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation. The estimation of this angle is known as sighting or shooting the object, or taking a sight. This angle and the time when it was measured is used in order to determine Greenwich Mean Time and hence longitude. Sighting the height of a landmark on land can also give a measure of distance from that object. History: The development of the sextant was as an improvement over the octant, an instrument designed to measure one's latitude. The octant was first implemented around 1731-present but can only measure angles up to 45°. As larger angles were needed to allow the measurement of lunar objects - moon, stars and the sun - at higher angles, the octant was superseded by the sextant. The sextant is a similar instrument but better made and allows larger angles from 60° to 120°. This improvement allows distances to be accurately calculated thereby giving longitude when used with a chronometer. The sextant was derived from the octant in 1757, eventually making all previous instruments used for navigational positioning obsolete. The sextant had been attributed to by John Hadley (1682–1744) and Thomas Godfrey (1704–1749), but reference to the sextant was also found later in the unpublished writings of Isaac Newton (1643–1727). Earlier links can be found to Bartholomew Gosnold (1571–1607) indicating that the use of a sextant for nautical navigation predates Hadley's implementation. In 1922, the sextant was modified for aeronautical navigation by Portuguese navigator and naval officer Gago Coutinho. It should be noted that the octant and quadrant are in the same family as they were, and all are, regarded as sextants. The sextant is representative of it's type and although not fully complete it demonstrates how 18th,19th and 20th century mariners determined their latitude and longitudinal to determine their position on a chart, allowing them to navigate there way across the world's oceans. It also demonstrates the skill and workmanship of the early instrument makers that operated scientific instrument businesses from London and other areas of England to provide most of the navigational instrumentation used by commercial and military navies of the time.Sextant with square, fitted box of polished wood, "Hezzanith" brand. Box contains many parts for the sextants use. On certificate "Heath & Co, London. Sextant Number Y 822". Catch on lid "DEFIANT LEVER" and "PATENT NUMBER 187.10". Maker's certificate is attached to the inside of the box.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, sextant box, sextant, hezzanith, heath & co, navigational instrument, george wilson heath, astronomical instrument, instrument manufacturers, scientific instrument, navigation, celestial navigation, octant, quadrant, lunar navigation

This sextant is very similar to a 1915 Sextant design. A sextant is an astronomical instrument used in measuring angular distances especially the altitudes of sun, moon and starts at sea determining latitude and longitude.This sextant is an example of a 19th-century marine instrument used for finding location at sea. It was made by London scientific instrument maker Troughton and Simms, which originated in 1826 and continued until 1922.Sextant and its fitted square wooden box. The handle of the sextant is carved with a cross-hatched pattern. Made by Troughton and Simms, London.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, sextant, navigational instrument, marine navigation, marine equipment, instrument, navigation, troughton and simms, london, scientific instrument

A miner's dial was used by surveyors to determine the direction of underground tunnels and roadways. The inclinometer allowed measurement of the angles at which mine tunnels descend into the ground.A rare miner's dial in a hinged timber box.This surveying instrument consists of a theodolite monsblr on a magnetic compass, which sits on the vertical tapered spigot of a base plate. Fits tripod catalogued item 4133. Inside the box lid is the supplier's label - W. Travill (successor to D. Esdale) of 146 Little Collins Street, Melbournemining, ballarat school of mines, surverying, scientific instruments, scientific objects

Nobel Industries Limited was founded in 1870 by Swedish chemist and industrialist Alfred Nobel for the production of the new explosive dynamite in the United Kingdom. Ardeer, on the coast at Ayrshire, was chosen for the company's first factory. Between 1877 amd 1926 it was known as Nobel’s Explosives Company Limited. The business later diversified into the production of blasting gelatine, gelignite, ballistite, guncotton, and cordite. At its peak, the factory employed nearly 13,000 men and women. In 1926, the firm merged with Brunner, Mond & Company, the United Alkali Company, and the British Dyestuffs Corporation, creating a new group, Imperial Chemical Industries, then one of Britain's largest firms. Nobel Industries continued as the ICI Nobel division of the company. Small black timber box with small screw holding back on, and leather handle on top. A pivoted needle remains vertical as box angle changes. Graded scale behing top end of needle. Two adjusting points at top.No 10070nobel, ballarat school of mines, scientific instruments, galvanometer

Grey metal rectangular box with 3 large dials down centre and 3 terminals at one end Dials show different levels - capacitiesMaker's plate: Techtron - Techtron Appliances - Melbourne - Australia Type: R3D1 Serial: 101resistance control box, terminals, ohms dials, techtron appliances, scientific instruments

A self-contained demountable balance scale set mounted and housed in a timber box. Complete with balance weights - scales, balance, scientific instrument

This item was purchased by Geoff Biddington, and donated after his death. It is believed to have been used at the Woomera Rocket Range.Cylindrical timber spiral slide rule with timber box. 808 L.R.W. 36fuller calculator, calculator, scientific instrument, biddington, woomera, woomera rocket range, slide rule, scientific objects, scientific instruments

Galvanometers are an instrument used for detecting and measuring electric current. They had a magnetic needle moved by the magnetic field produced by coils carrying the current to be measured, and the earth's field had to be taken into consideration. They were used to detect current in either direction in telegraphy systems, and to test equipment.Post Office Galvonometer. A hinged polished timber case with three brass terminals at the top, and ring (handle) and a dial (0 to 70) with an indictor needle. The opened box reveals wires leading to the terminals with two compartments covered in blue woven material (possibly silk).telegraph works, galvonometer, scientific instruments

Boxed optical microscope, equipped with the following accessories: 1. Two ocular lenses, one with crosschain graticule 2. 6 objective lenses; AA, aa, a, 1/4 inch, 1/16 inch, 1 inch - cartridge only, 3/5 - lens without cartridges, Jictable frameScratched on top of right side front leg 'CM'. microscope, j. swift and son, scientific instruments

DEFINITION microfarad Posted by: Margaret Rouse WhatIs.com Contributor(s): Kenda, Jack Clements The microfarad (symbolized µF) is a unit of capacitance, equivalent to 0.000001 (10 to the -6th power) farad. The microfarad is a moderate unit of capacitance. In utility alternating-current (AC) and audio-frequency (AF) circuits, capacitors with values on the order of 1 µF or more are common. At radio frequencies (RF), a smaller unit, the picofarad (pF), is often used. This unit is equal to .000000000001 (10^-12) µF. In RF scenarios, capacitances range from about 1 pF to 1,000 pF in tuned circuits, and from about 0.001 µF to 0.1 µF for blocking and bypassing. At audio frequencies (AF), capacitances range from about 0.1 µF to 100 µF. In power-supply filters, capacitances can be as high as 10,000 µF. Capacitor, 1/3 M.F.D. (microfarad) within wooden insulating box. Two terminal posts set in an insulating box. Maker's name and place 1/3 M.F.D No. 34402scientific instrument, capacitor, electrical engineering, laboratory

A spherometer is an instrument for the precise measurement of the radius of curvature of a sphere or a curved surface. Originally, these instruments were primarily used by opticians to measure the curvature of the surface of a lens. A fixed-frame tripod with adjustable central contact screw, equipped with micrometer scale. Brass construction with steel contact points. Designed for measuring curvature of lenses. Stored in a polished timber box. Made specially for Silberberg and Co. Ltd. Melbournescientific instrument, spherometer, h.b. silberberg & co ltd

Resistors 5 decade set, Type ^85. Black top panel eith elector knobs and terminal posts mpunted on polished wood box. scientific instruments, j.l. williams instruments, resistance box, decade box