![PDF] Horizontal lang two-pencil test as a screening test for stereopsis and binocularity | Semantic Scholar PDF] Horizontal lang two-pencil test as a screening test for stereopsis and binocularity | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/7b178dca0ff31fc41e81491b38c4f24ebc718687/2-Figure1-1.png)
PDF] Horizontal lang two-pencil test as a screening test for stereopsis and binocularity | Semantic Scholar
![TIL the "pencil test" was used during Apartheid in South Africa to decide if a child got to grow up white or "coloured" (biracial). If your hair wasn't curly enough to hold TIL the "pencil test" was used during Apartheid in South Africa to decide if a child got to grow up white or "coloured" (biracial). If your hair wasn't curly enough to hold](http://i.imgur.com/7WuQ0wb.jpg)
TIL the "pencil test" was used during Apartheid in South Africa to decide if a child got to grow up white or "coloured" (biracial). If your hair wasn't curly enough to hold
![How Reliable is the Pencil Test for Expediting the Patent Prosecution Process? - Harrity & Harrity, LLP How Reliable is the Pencil Test for Expediting the Patent Prosecution Process? - Harrity & Harrity, LLP](https://harrityllp.com/wp-content/uploads/2019/08/blue-knife-sharpened-pencil-56902.jpg)