20090107

Skerryvore Lighthouse

1822
August Fresnel invents the dioptric lens
1824
Stevenson renovates Kinnaird Head
1844
Alan Stevenson completes Skerryvore off Mull
1850
Robert Louis Stevenson born
1868
Work begins on Dubh Artach lighthouse off Mull
1635 - 1814 1815 - 1868 1869 - 1998

1844 Alan Stevenson, son of Robert completes the Skerryvore lighthouse twenty-five miles off the coast of Mull. It is considered a feat of engineering genius with a tower 48 metres high.

Robert's son, Alan, also became a famous engineer by designing a lighthouse, which is probably one of the wonders of Victorian engineering. On the west coast he constructed a light tower on a reef that was 48 metres high. He calculated that if the weight of the stone was enough, there was no requirement for dovetailing the stones. The lighthouse was constructed of over 4000 tons of stone and relied on weight alone to keep it in position. Needless to say the light is still there guiding mariners away from the reef.


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