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The Structural Engineer, Volume 30, Issue 11, 1952
Part I (A) Simple Spans, Symmetrical Section The present article describes the derivation of method by which a direct answer for the beam dimensions may be found from one equation. Symbols used will be referred to when they occur and in a list on page 263. Professor R.G. Robertson
We have become accustomed to the pressure of the atmosphere in which we live and fail generally to realise the latent power it represents. But we have a simple means of recalling it to mind. If we consider a mountain lake, its waters also represent potential energy. To release this energy, all that need be done is to install a suitable plant (a hydro-electric station) at a lower point, where the waters of the lake exercise considerable pressures which can be utilised in work. In the same way, to “awake” atmospheric energy, it suffices to provide a source of low pressure (a vacuum unit) in relation to which the atmosphere acts as an infinite reservoir of compressed air. I. Leviant
This month's letters cover legislation for design checks, embodied carbon of modular construction approaches, and assessment of masonry buildings for earthquake resilience in New Zealand.