Cosmic Microwave Background Challenge | Space Time | PBS Digital Studios
If a photon leaves the train station shortly after the Big Bang …
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REFRESHER EPISODES:
Space Used to Be Orange!!
https://www.youtube.com/watch?v=3tCMd1ytvWg
Why the Big Bang Definitely Happened
https://www.youtube.com/watch?v=aPStj2ZuXug
Question #1: What physical distance did the light from the CMB travel through an expanding universe to reach us today?
Question #2: What average distance could a photon travel before being scattered by an electron just before recombination? (show your work!)
Choose one question to answer.
Email answers to pbsspacetime@gmail.com
Make sure you title your email: “CMB Challenge”
5 random winners will receive a PBS Space Time Digital Studios t-shirt!
Good luck!
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If you would like to attend Matt’s gravitational waves seminar on March 14th in NYC, email pbsspacetime@gmail.com with the subject line “NYC Gravitational Waves” for more details!
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Written and hosted by Matt O’Dowd
Made by Kornhaber Brown (www.kornhaberbrown.com)