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2. Norah Head Light - Wikipedia

   en.wikipedia.org/wiki/Norah_Head_Light

   The light revolved every 10 seconds, and was floating in a mercury bath of more than 15,000 pounds (6,800 kg) to lessen the friction. The high speed of rotation made operating the light while it was active very difficult. [6] On 13 April 1923 the light source was upgraded to a Ford-Schmidt kerosene burner with an intensity of 700,000 candlepower.

3. Gas mantle - Wikipedia

   en.wikipedia.org/wiki/Gas_mantle

   Hot gas mantles. The lowest visible mantle has partially broken, reducing its light output An 85 mm Chance Brothers Incandescent Petroleum Vapour Installation. The mantle is a roughly pear-shaped fabric bag, made from silk, ramie-based artificial silk, or rayon. The fibers are impregnated with metallic salts; when the mantle is first heated in ...

4. Carbide lamp - Wikipedia

   en.wikipedia.org/wiki/Carbide_lamp

   This, in turn, controls the flow rate of the gas and the size of the flame at the burner, and thus the amount of light it produces. This type of lamp generally has a reflector behind the flame to help project the light forward. An acetylene gas powered lamp produces a bright, broad light.

5. Camphine - Wikipedia

   en.wikipedia.org/wiki/Camphine

   Generally prepared by distilling turpentine with quicklime, [1] it gave off a brilliant light. It was burned in chimney lamps that produced a strong draft to prevent smoking. [2] Invented in 1838, it was a popular domestic lamp fuel until the 1860s. Camphine was alternatively spelled camphene, especially in the United States.

6. Norah Head Lightstation Precinct - Wikipedia

   en.wikipedia.org/wiki/Norah_Head_Lightstation...

   The lamp gallery has a painted cast-iron floor grate with a cast-iron stair leading to the outdoor gallery. The lamp itself is encircled and protected by perspex and aluminium panels. [1] The lighthouse tower contains the original Chance Bros. 3,700-millimetre-diameter (150 in) cast-iron-and-copper-lantern house.

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