One of the earlier estimate of the Hubble constant was 500 k…

One of the earlier estimate of the Hubble constant was 500 km/s/Mpc in early 1900s. In early 2000s, measurements of Hubble constant using Cephied stars yield 72 km/s/Mpc. In recent years, the new methods of using red giant stars has been developed and this new method yields 70 km/s/Mp. If you are to compare the 2 recent values, 72 or 70km.s/Mpc, which estimate will results in greater age of the universe?   t = 1/Ho Explain your reasoning in as much details as possible. 

弟弟:哥,起床吃早饭吧! 哥哥:现在几点? 弟弟:现在九点半。…

弟弟:哥,起床吃早饭吧! 哥哥:现在几点? 弟弟:现在九点半。你今天做什么? 哥哥:我先去跑步,然后去打篮球。 弟弟:你今天几点上中文课? 哥哥:我中午一点上中文课。 弟弟:你几点回家? 哥哥:我下午三点半回家。 弟弟:你晚上做什么? 哥哥:我晚上看电视。   Question:哥哥晚上做什么?(Type Chinese characters and complete sentences)

Congratulations!  You have completed your quiz. Once you cli…

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