Bombproof -A hold or anchor that is thought to offer the utmost security; for example, a top-rope anchor around a large, stable tree trunk or immovable boulder.
And so I may as well do some stretches while doing so or try and, you know, improve my hamstring flexibility or things like this or even just like sit cross legged, which encourages hip mobility.
If you've ever tried to fly with a trumpet dangling from your neck and a slate flapping in the wind and a chalk pencil bouncing around at the end of its string, you know how hard it can be.
The coffin laid upon two line-tubs, between the vice-bench and the open hatchway; the Carpenter caulking its seams; the string of twisted oakum slowly unwinding from a large roll of it placed in the bosom of his frock.
Studying mechanical principles, da Vinci designed many useful devices, such as this machine for twisting ropes or a crane used to build canals, that greatly improved the efficiency of Renaissance craftsmen.