Scientific War Machine

The Owen Gun, which was known officially as the Owen Machine Carbine, was an Australian submachine gun designed by Evelyn (Evo) Owen in 1939. The Owen was the only Australian-designed service firearm of World War II and was the main submachine gun used by the Australian Army during the war.

Owen, an inventor from Wollongong, was 24 in July 1939 when he demonstrated his prototype .22 calibre “Machine Carbine” to Australian Army ordnance officers at Victoria Barracks in Sydney. The gun was rejected because the army, at the time, did not recognize the value of submachine guns. Following the outbreak of war, Owen joined the army as a private.
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The ‘Leopard 2′ is a German main battle tank built by the German company Krauss-Maffei-Wegmann, developed in the early 1970s and first entering service in 1979, replacing the earlier Leopard 1 as the foremost MBT in the Bundeswehr. Its different versions have served in the armed forces of Germany and ten other European countries, as well as non-European countries. More than 3,200 Leopard 2s have been manufactured.

There are two main development batches of the tank, the original models up to Leopard 2A4 which have vertically faced turret armour, and the “Improved” batch, namely Leopard 2A5 and newer, which have angled arrow-shaped turret add-on armour together with a number of other improvements. Read the story →

A ‘laser range-finder’ is a device which uses a laser beam in order to determine the distance to a reflective object. The most common form of laser range-finder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the target and returned to the sender. Due to the high speed of light, this technique is not appropriate for high precision sub-millimeter measurements, where triangulation and other techniques are often used.
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In 1947, the first FN FAL prototype was completed. It was designed to fire the intermediate 7.92×33mm Kurz cartridge developed and used by the forces of Nazi Germany during World War II (see StG44 assault rifle). After testing this prototype in 1948, the British Army urged FN to build additional prototypes, including one in bullpup configuration, chambered for their new .280 British calibre intermediate cartridge. After evaluating the single bullpup prototype, FN decided to return instead to their original, conventional design for future production.

In 1950, the United Kingdom presented the redesigned FN rifle and the British EM-2, both in .280 British calibre, to the United States for comparison testing against the favored United States Army design of the time – Earle Harvey’s T25. It was hoped that a common cartridge and rifle could be standardized for issue to the armies of all NATO member countries. After this testing was completed, U.S. Army officials suggested that FN should redesign their rifle to fire the U.S. prototype ‘.30 Light Rifle’ cartridge. FN decided to hedge their bets and cast their lot with the U.S., given that the UK appeared to be favoring their own EM-2.
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Ann Brown gripped the handle of a .50-caliber machine gun that appeared to be larger than her slight frame. Peering down the sights, she squeezed off a five-round burst in less than a second.

Taken aback by the sudden burst, Brown, president of a graphic design company in Colorado, looked up as if shocked and then laughed, almost embarrassed. She said she didn’t realize it would fire that many rounds so fast.
Her companions in the Joint Civilian Orientation Conference quickly, and jokingly, dubbed her “Machine Gun Annie.”
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“There’s a jolt from it, but more than that, I was amazed at how quickly I could shoot out five shots. That really shocked me. Plus, when I realized that each shot can go 3,000 feet, … that’s really scary,” Brown said.
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