Sounds so restful, that engineering term. The angle of repose: is the minimum angle made by an inclined plane with a horizontal surface such that the body lying on the inclined plane is just at the verge of sliding down along the inclined plane. So relaxed is that body, it's teetering on slippage. Just so long as it doesn't drop any stitches along the way:
I learned that concept while sailing through the Panama Canal. Never gave the canal much thought, just accepting its benefit in permitting ships the ability to avoid an eight day sail around South America. But it is really fascinating, not as you might imagine – a skinny concrete sea level passage from the Caribbean Sea to the Pacific. It's actually a series of locks at each end of a mountain range with a fresh water man made lake in the middle. It's 50 miles of sailing, 8-10 hours, with deep steamy jungle on either side. The toll for our ship was about $300,000, a considerable savings over the alternative roundabout route.
Entering the Panama Canal at sunrise:
In the locks, a foot of clearance on either side:
Beautiful scenery on Gatun Lake:
A neighbouring ship enters the end set of locks:
Pacific sunset:
Life's a Stitch 
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