spectroscopy and Doppler effect
how does a spectroscope work
it separates starlight into the visible light spectrum
how does light traval
in a wave
_____ were invented in 5000 BC and were used to tell the time
sundials
how do astronauts get their water
urine or condensed humidity
spectral _______ has missing lines of color that are absorbed by the gas used
absorption
the type of light with the lowest frequency
radio waves
LEO statlites orbit around ______(i) while geostationary orbit around _______(ii)
the poles(i)
the equator(ii)
______ is harmful for shuttles and satellites
space junk
the Doppler effect
a _______ telescope uses mirrors to see things in space
reflecting
why are LEO statlites not used for GPS
they are too fast or they don't see much of the earth's surface
the ____ is where astrounauts live temporaly
space station
the color of a star is green from the naked eye but before it was cyan, so the star is moving...
closer
how do we get more resolution for telescopes
put telescope on mountin top or lunch telescope into space
canada helped with the moon landing, how
they made the landing gear for alloplo 11
we can tell if a star is moving closer or further because if it is coming closer it is ______(i) and if it is going further it is ______(ii)
(i) red-shifted
(ii) blue-shifted
_____ has the lowest wavelength in the visible light spectrum
purple/viilot
the ______ repairs ISS satillites
canadarm 2