reading "Black Holes & Time Warps" by Kip Thorne, bday present from @lubkin (Thank you so much!). Relativity made readable like a novel!
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
reading "Black Holes & Time Warps" by Kip Thorne, bday present from @lubkin (Thank you so much!). Relativity made readable like a novel!