The Tall T
An upside-down T. Which of its two lines is longer?
Pengalaman ini belum diterjemahkan, jadi teksnya masih bahasa Inggris.
Cara main
Lihat dulu, baru jawab
An upside-down T. Which of its two lines is longer?
- Kurang dari semenit · 1 pertanyaan · lalu penjelasan
Cara kerjanya — sebaiknya dibaca setelah mencoba
Up is longer
The two lines are the same length. Vertical lengths are overestimated compared with horizontal ones, and cutting the base in half with the upright adds to it: the base is read as two halves, the upright as one whole.
The effect has been studied since at least the 1850s, by Adolf Fick and later Wilhelm Wundt, and it is one reason a tall building looks taller than it is wide even when the two are equal.