ゼミの前なので、フレーザーの渦巻き錯視をツイート。(論理的でない表現だが、頭の中ではそういう流れだった) Fraser's spiral illusion: Concentric circles appear to be spirals.pic.twitter.com/MjqShwGfAh
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
This is fantastic!
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.