Dassen Island Lighthouse

Dassen Island Lighthouse
	Dassen Island and lighthouse, 9 km (6 mi) off the coast of Yzerfontein
	South Africa Western Cape
Location	Yzerfontein; Western Cape; South Africa
Coordinates	33°25′57.13″S 18°05′20.72″E
Year first constructed	1893
Construction	Cast-iron tower
Tower shape	Circular prism tower with balcony and lantern
Markings / pattern	White tower, red bands
Tower height	29 metres (95 ft)
Focal height	47 metres (154 ft)
Light source	mains power
Intensity	1,400,000 cd
Range	24 nautical miles (44 km; 28 mi)
Characteristic	Fl(2) W 30s
Admiralty number	D5860
NGA number	113-25956
ARLHS number	SAF-042

Dassen Island Lighthouse is a lighthouse situated on Dassen Island, west of Yzerfontein. It is a white circular cast-iron tower that has been in use since 1893.

History

The lighthouse is found on the southern point of Dassen Island, off the western coast of South Africa, 55 km north-west of Cape Town and 11 km west of Yzerfontein.[1] It was installed on 15 April 1893.[1] The lighthouse consists of a circular cast-iron tower that is painted in white and red bands and stands atop a brick base to height of 28 m.[1][2]

The light house signals two white flashes, separated by 10 s, every 30 s.[2] The fog horn blasts for five seconds every fifteen seconds.[2] The lighthouse is manned at all times. The island is closed to the general public, but can be visited by special permit.

gollark: You'd need rails or something all the way across the Atlantic.

gollark: Oh, and possible new transport thing for the ultrarich: suborbital rocket to a different continent.

gollark: That sounds very cool if quite possibly impractical.

gollark: There aren't that many alternatives.

gollark: Personally, my suggested climate-change-handling policies:- massively scale up nuclear fission power, it's just great in most ways- invest in better rail infrastructure - maglevs are extremely cool™ and fast™ and could maybe partly replace planes?- electric cars could be rented from a local "pool" for intra-city transport, which would save a lot of cost on batteries- increase grid interconnectivity so renewables might be less spotty- impose taxes on particularly badly polluting things- do research into geoengineering things which can keep the temperature from going up as much- increase standards for reparability; we lose so many resources to randomly throwing stuff away because they're designed with planned obsolecence- a very specific thing related to that bit above there - PoE/other low-voltage power grids in homes, since centralizing all the AC→DC conversion circuitry could improve efficiency, lower costs of end-user devices, and make LED lightbulbs less likely to fail (currently some of them include dirt-cheap PSUs which have all *kinds* of problems)

References

Raper, Peter E.; Moller, Lucie A.; du Plessis, Theodorus L. (2014). Dictionary of Southern African Place Names. Jonathan Ball Publishers. p. 1412. ISBN 9781868425501.
Rowlett, Russ (12 September 2016). "Lighthouses of Western South Africa". University of North Carolina at Chapel Hill. Retrieved 4 August 2017.

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[Dict01-1] Raper, Peter E.; Moller, Lucie A.; du Plessis, Theodorus L. (2014). Dictionary of Southern African Place Names. Jonathan Ball Publishers. p. 1412. ISBN 9781868425501.

[Light01-2] Rowlett, Russ (12 September 2016). "Lighthouses of Western South Africa". University of North Carolina at Chapel Hill. Retrieved 4 August 2017.