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valy

18 Feb 2011 14:15


Thermal issues

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Am dat de postul lui dothead de aici: http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/4114926/page/0/view/collapsed/sb/5/o/all/fpart/1/vc/1 (al 8-le apost). Inca n-am "rumegat" totul, dar am observat o fraza care ma pune putin pe ganduri:

"Optical theory tells us, as light passes 1 meter through air, there results a wavefront deviation of lambda/4 for every degree (Kelvin) of temperature difference"

Avand in vedere ca la mine lumina trece de 3 ori prin tub (.8 x 3 = 2.4m), s-a aprins un beculet. 
Tot ce sper e ca deltaT 1'K e infinit mai mica deca deltaT 1'C, ca altfel e nasol  :roll:

Cred ca e timpul sa-mi iau un refractor fff scurt.