|Detail||：||When designers of the Subaru Telescope opted for a cylindrical rather than dome-shaped enclosure for the telescope, they conducted research that showed that the air would flow horizontally around the building rather than moving up or down. The horizontal flow would suppress the rise of turbulent air just above the ground and hinder it from crossing the telescope's optical path and distorting the image taken by the telescope's camera. This video confirms the reality of the designers' vision. Conditions were ideal for easily observing airflow: no clouds in the upper air; a white cloud slowly flowing in the easterly wind at ground level; and the background of a clear blue sky. When the cloud met the enclosure, it split, wrapped around it, and flowed downstream.
Filming: Saeko Hayashi (Subaru Telescope), December 19, 2011
Subaru Telescope's Enclosure Channels Airflow
November 19, 2011
Last updated: February 18, 2021