GoodTaste
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Based on various measurement tools at different ranges of distance (trigonometry, parallax, standard candles, supernovae brightness, galactic red shift and the cosmic microwave background), it is possible to create a cosmic distance ladder and accurately determine not only the distance of far-flung galaxies, but also the current size of the universe.
Source:
I understand "measurement tools at different ranges of distance" as "measurement tools that are used for different ranges of distance". Am I on th right track?
I've checked out an unabridged English dictionary, which doesn't show a definition like "used to indicate purpose or capacity" as I've expected. Henc the thread.
Source:
How Did Scientists Determine The Size Of The Universe?
I understand "measurement tools at different ranges of distance" as "measurement tools that are used for different ranges of distance". Am I on th right track?
I've checked out an unabridged English dictionary, which doesn't show a definition like "used to indicate purpose or capacity" as I've expected. Henc the thread.