Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-engineering-1c1984655c4a

What did John Smeaton pioneer in lighthouse building?

Hydraulic lime mortar.

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  1. Glass walls
  2. Hydraulic lime mortar ✔
  3. Wooden nails

Why: Smeaton used hydraulic lime, a mortar that sets under water, in the Eddystone Lighthouse.

Huh, didn't know that: Smeaton used hydraulic lime, a mortar that sets under water, in the Eddystone Lighthouse.

The dad joke
That mortar really sets the standard!
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References

Answer: Hydraulic lime mortar. Smeaton used hydraulic lime, a mortar that sets under water, in the Eddystone Lighthouse.

  1. Engineering en.wikipedia.org/wiki/Engineering
    pioneered the use of 'hydraulic lime'
    Checked 2026-11-07.

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