புறவெளி

புறவெளி Outer space, வழக்கில் பொதுவாக விண்வெளி என்றே அழைக்கப்படுகிறது. இது புவிக்கும்(அதன் வளிமண்டலம் உட்பட) வான்பொருட்களுக்கும் இடையிலான விண்வெளி பகுதி ஆகும். புறவெளி முழுமையான வெற்றிடம் அன்று; இது மீ உயர் வெற்றிடப் பகுதியாகும்.^[1] இதில் தாழ் அடர்த்தித் துகள்களும் குறிப்பாக நீரக எல்லிய மின்ம ஊடகத் துகள்களும் மின்காந்தக் கதிர்வீச்சும், காந்தப் புலங்களும்sமண்டப் பின்னணி நொதுமியன்களும்(neutrinos), அண்டத் தூசும், அண்டக் கதிர்களும் உள்ளன. புறவெளியின் அடிப்படைக்கோடு வெப்பநிலை, 2.7 கெல்வின்s (−270 °C; −455 °F) ஆகும்.^[2]

மேற்கோள்கள் தொகு

↑ Roth, A. (2012), Vacuum Technology, Elsevier, p. 6, ISBN 978-0444598745.
↑ Chuss, David T. (June 26, 2008), Cosmic Background Explorer, NASA Goddard Space Flight Center, archived from the original on May 9, 2013, பார்க்கப்பட்ட நாள் 2013-04-27.

தகவல் வாயில்கள் தொகு

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[Roth_2012-1] Roth, A. (2012), Vacuum Technology, Elsevier, p. 6, ISBN 978-0444598745.

[CBE2008-2] Chuss, David T. (June 26, 2008), Cosmic Background Explorer, NASA Goddard Space Flight Center, archived from the original on May 9, 2013, பார்க்கப்பட்ட நாள் 2013-04-27.

[1]

[2]