Hong Ren, Yukun Wu, Yang Yang et al. · Bioactive Materials · 2026
From the methods
The visual cliff apparatus (Conduct Science, Boston, MA) consisted of a 62 × 62 × 19 cm clear plexiglass box, divided into two regions by a central platform (1.5 inches in height × 2 inches in width).
Timothy Kim, Ege Iseri, Micalla G Peng et al. · PLOS ONE · 2025
From the paper
as previously described [41]. A clear, open-top plexiglass box (Conduct Science, Skokie, IL) measuring 82 x 82 cm was placed on a 3-foot-tall table with half of the box protruding. A black-and-white