Αυτή η φωτογραφία του Έλληνα Κ.Ταματέα είναι υποψήφια μεταξύ 12 από όλο τον κόσμο ως καλύτερη της χρονιάς για το Earth Science Picture of the Day της NASA. Η φωτογραφία δείχνει και τον Όλυμπο. Ψηφίστε να πάρουμε την πρωτιά. Μπείτε στη παρακάτω σελίδα και ψηφίστε!
http://epod.usra.edu/blog/2013/09/high-altitude-balloon-burst.html
Photographer: Kostas Tamateas; Kostas’ Facebook Page
http://epod.usra.edu/blog/2013/09/high-altitude-balloon-burst.html
Photographer: Kostas Tamateas; Kostas’ Facebook Page
Summary Author: Kostas Tamateas
September 2013 Viewer's Choice The photo above shows the remains of a high altitude balloon just after it burst far above the Thessalian Plain of northern Greece. This was Greece's first suborbital photography project. The project that launched the balloon is referred to as SlaRos (Tesla,Ikaros); the mission is called Stratonauts. Mount Olympus is beneath the clouds at top left – to the left of the balloon is the Aegean Sea.
The balloon reached an altitude of 111,296 ft (33, 923m) before bursting. All such high altitude balloons burst when the atmospheric air pressure is too low to contain the expanding volume of the gas within the balloon. This balloon’s capsule was retrieved intact and will be re-used for a future launch. Note that since there are too few air molecules at altitudes above about 60,000 ft (18,288 m) to effectively scatter sunlight, the sky appears essentially black. Photo taken at 12:29 UTC on August 26, 2013.
Photo details: The picture is a 1280 x 720 frame from a High Definition, Gopro Hero3 camera, configured to 50 fps (frames per second). It's impossible to take a picture like this with a point-and-shoot camera.
Coordinates: 39.236935, 22.195804
Related Links
High Altitude Balloon Over Mount Olympus, Greece
How a Weather Balloon Works
Student Links
Observe how air pressure affects a rising balloon
Edge of Space Sciences
Earth Observatory
Greece
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