Man attaches radiosonde to weather balloon and releases it in Sierra, Greenland.
Greenland Date:1954, July 1 Duration:1 min 17 sec Sound:NO SOUND
Man fills balloon with calcium-hydride gas in weather balloon. Another man operates Radar Antenna. Man walks out of igloo, attaches radiosonde to the balloon and releases it. The balloon moves upward. Man positions Radar Antenna.
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