Photograph of laboratories at the Ballarat School of Mines. 1. A male person at the viewing window of a wind tunnel. The man is probably Zig Plavina 2. Three males at a glass-sides tilting flume apparatus.ballarat school of mines, laboratory, tilting flume, wind tunnel, zig plavina

Otto Lilienthal (1848-1896) from Berlin, Germany, is widely credited as being the first person to make repeated successful gliding flights. He was known for adopting a thorough scientific approach founded on observations of the flight of birds in relation to the problem of inventing a man carrying heavier than air machine that would fly. He developed and tested bird-like gliders controlled by weight shift by the pilot (a similar method to modern hang gliders). The pilot held on to the glider with his forearms resting in hoops mounted on the main structural beam connecting the wings. The weight shift was achieved by the pilot swinging his trunk and legs. In contrast, the pilot of a modern hang glider is suspended below the glider and, with the use of an A-frame, allows the whole body to be moved around to achieve control. The Lilienthal design apparently had a tendency to pitch down and a tailplane was added to mitigate this problem. Lilienthal flew from hills in the Rhinow region and from a conical hill he built near Berlin. He made over 2000 flights. Importantly, for others seeking to progress manned flight at the time and also for the historical record, reports of Lilienthal’s flights (some with photographs) were published and Lilienthal detailed his experiences and corresponded with other flight pioneers. Lilienthal’s work became well known and influenced Orville and Wilbur Wright in their initial experiments with gliders in 1899 (although in their quest to design and fly an aeroplane they relied on new data created by wind tunnel testing). The replica built by Bruce Hearn is of the 1893 Lilienthal glider. It is very similar to the “Normal-Segalapparat” (Normal Glider) for which patent protection was later granted a few years later. The Lilienthal replica glider is an important addition to the AGM collection as it represents the beginning of successful gliding flight. Hang glider made of wood with wire bracing – yet to be covered with authentic cotton fabric. The glider has a small plate with identification details including name of builder (Bruce Hearn) glider, hang glider, lilienthal, hearn, replica

This telescope was amongst various items collected from a sea dive in Port Phillip Bay. The diver was the caretaker of the Port Lonsdale Lighthouse, who dived on various wrecks in the bay during the 1960's. After the caretaker's death, his son sold off many of the shipwreck artefacts. The telescope was purchased from the caretaker's son in the 1990's by a previous owner of the Marine Shop, Queenscliff, Victoria. John Browning was particularly well known for his scientific advances in the fields of spectroscopy, astronomy, and optometry. Between 1856 and 1872, Browning acquired provisional patents for designs of numerous scientific instruments. He was also the recipient of an award at the 1862 International Exhibition held in London. Also recognised for his temperature-compensated aneroid barometer. Browning's scientific instruments were used in physics, chemistry, and biology. The products he designed and manufactured included spectroscopes, telescopes, microscopes, barometers, photometers, cameras, ophthalmologist, and electrical equipment such as electric lamps. John Browning was born around 1831 in Kent, England. His father, William Spencer Browning, was a maker of nautical instruments. John Browning's great-grandfather was also an instrument maker as well as John’s brother Samuel Browning of the firms Spencer & Browning and Spencer, Browning & Rust, who also manufactured navigational instruments. The latter firm was in operation in London from 1784 to 1840 and was succeeded by the firm of Spencer, Browning & Co. John Browning initially intended to follow the medical profession and entered Guy's Hospital, a teaching hospital and a school of medicine. Despite having passed the required examinations, however, he abandoned his plans. Instead, he apprenticed with his father, William Spencer Browning. At the same time, in the late 1840s, he was a student attending the Royal College of Chemistry several days per week. By the early 1870s, practical optics had become John Browning's primary interest, and he listed his occupation as an optician on the census records from 1871 to 1901. He was well known among London's ophthalmic surgeons for his various ophthalmic instruments. He had a large part in reforming the art of crafting spectacles. Other achievements were as an author of the book, How to Use Our Eyes and How to Preserve them by the Aid of Spectacles. Published in 1883, the book included thirty-seven illustrations, including a diagram demonstrating the anatomy of the eye. In 1895, he was one of the founders of the "British Ophthalmology" the first professional organisation for optometry. He was not only its first president but also registered as its first member so many considered him to be the first professional optometrist. Other professional organisations he belonged too was as a member of “The Aeronautical Society of Great Britain”. In 1871 constructing the first wind tunnel located at Greenwich Marine Engineering Works. He was also a member of other scientific organisations, such as the “Microscopical Society of London”, the “Meteorological Society”, and the “Royal”. Then in 1908 the company of W. Watson & Son, opticians and camera makers, took over John Browning's company since 1901 John Browning had been semi-retired but in 1908 he fully retired and moved to Bournemouth in Hampshire. He died in Cheltenham, Gloucestershire in 1925.The telescope is significant for its association with one of the world’s leading scientific instrument makers and inventor of the 19th and early 20th century. It is believed the donation came off a wreck either in Port Philip Bay or between Point Lonsdale and the Nepean Heads making it a significant maritime historical artefact. Its provenance is good given it was taken off a wreck in this area by the Point Lonsdale lighthouse caretaker. Examples of John Browning's telescopes because of their scientific and historical importance are highly valued by collectors.Marine style single draw brass telescope with a sunshade. The single draw has no split and the second cartridge is held in a long brass tube within the single draw, mounted from the objective end. The eyepiece is flat and at the end of the first draw in a very faded engraving that is believed to read "John Browning, 63 Strand, and should read London under the word strand but this is hard to establish given the engravings condition. This interpretation of the engraving has been arrived at by examination of other John Browning telescope engraving examples."John Browning, engraved to the first tube in copper plate style "63 STRAND" Engraved under in capital textflagstaff hill, flagstaff hill maritime museum and village, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, shipwreck artefact, port phillip bay, port lonsdale lighthouse, wreck, 1960’s diver, queenscliff marine shop, john browning, telescope, spectroscopy, optometry, scientific instruments, william spencer browning, optician, navigational instrument, microscopical society of london, aeronautical society, marine technology