In the late 1980s, the parks service in the United States were concerned about the deterioration of the stonework on the Lincoln Memorial. So they asked the maintenance staff why the stone was decaying.
The crew explained that they used high-power sprays every fortnight to clean the masonry. The water penetrated cracks and joins, weakening the stone.
Already a subscriber? Log in
Get 10 issues
for $10
Subscribe to The Spectator Australia today for the next 10 magazine issues, plus full online access, for just $10.
- Delivery of the weekly magazine
- Unlimited access to spectator.com.au and app
- Spectator podcasts and newsletters
- Full access to spectator.co.uk
Or
Comments
Don't miss out
Join the conversation with other Spectator Australia readers. Subscribe to leave a comment.
SUBSCRIBEAlready a subscriber? Log in