Monday, April 28, 2014

Oh Block, why interlock?

If a block in an arch can budge
then it just needs a nudge
for the arch to get weak
you’ll not hear a creak
or some warning snaps
before the collapse.
So what’s to be done?
How safe’s anyone?
If the blocks in an arch interlock
they can’t move, anchored block
no unnerving fragility
the arch itself is stability.

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