Riser and tread relationship memes

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Impressive stairways around the world | See more ideas about Staircases, Stairway to heaven and Architecture. Appl Ergon. Sep;21(3) Stairway risers and treads: acceptable and preferred dimensions. Irvine CH(1), Snook SH, Sparshatt JH. Author information. The findings indicate that there is a relationship between the human pace and the riser-tread ratio, but the relationship is more flexible than Blondel envisaged.

Введя несколько модифицированных команд на языке Паскаль, он нажал команду ВОЗВРАТ.

Contemporary-Staircases-1 | cool ideas | Pinterest | Staircase design, Architecture and Stairs

Окно местоположения Следопыта откликнулось именно так, как он рассчитывал. ОТОЗВАТЬ СЛЕДОПЫТА. Он быстро нажал Да.