53.9 MB (1.6 MB compressed)
5315 x 3543 pixels
45.0 x 30.0 cm ⏐ 17.7 x 11.8 in (300dpi)
ALMA (ESO / NAOJ / NRAO) / EUROPEAN SOUTHERN OBSERVATORY / SCIENCE PHOTO LIBRARY ALMA (ESO / NAOJ / NRAO) / EUROPEAN SOUTHERN OBSERVATORY / SCIENCE PHOTO LIBRARY
Editorial use only. This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity.
Atmospheric pressure difference. Water bottles demonstrating atmospheric pressure differences. The two crushed bottles (seen with two filled bottles) were sealed at the ALMA Array Operations Site (AOS) at 5000 metres elevation. They were then brought down to the higher pressure found at ALMA's Operations Support Facility (OSF) at 2900 metres elevation. ALMA (Atacama Large Millimeter/sub-millimeter Array) is an array of 66 radio antennas located at the AOS on the arid Chajnantor plateau in the Chilean Andes. Initial antenna transport from the OSF to the AOS took place in 2008 and 2009. Photographed in March 2009.
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