The big Internet debate today is – What colour is this dress? A dress was posted online by a Tumblr user, as she and her friends were facing a conflict. Is it black and blue or white and gold? Hours later, the entire Internet was debating about it, bringing physics, science, and even Photoshop to their defence. A lot of research points towards the dress being black and blue, and the white and gold supporters are now questioning their eyesight. Also Read - Safer Internet Day 2021: Here's how you can ensure your online securityAlso Read - Mobile internet services suspended on Delhi borders till February 2
The Tumblr picture appears to be some sort of optical illusion, and has the Internet divided into two teams. An optical illusion is characterized by visually perceived images that differ from objective reality. It is like looking at a picture, and not seeing the real thing. Wired researched on the physiology of the eye, sunlight, rays, and graphic software experiments to ascertain that the dress is really black and blue. Buzzfeed also managed to get in touch with a woman who has seen the dress in reality, and confirmed that the dress is black and blue. Also Read - Mobile internet suspended in Haryana till 5PM on February 1, 2021
While the debate over the dress continues, we’ve compiled some of the best optical illusions, way better than the ‘not-so-great-looking’ dress, that will make you question everything that you see for the rest of your life. Or at least all of today.
1. The checker shadow illusion: Although square A appears a darker shade of grey than square B, the two are exactly the same. Drawing a connecting bar between the two squares breaks the illusion and shows that they are the same shade.
2. The spinning girl: If the foot touching the ground is perceived to be the left foot, the dancer appears to be spinning clockwise. If it is taken to be the right foot, then she appears to be spinning anti-clockwise.
3.The rotating pink dots: Focus your eyes on the center X and stare fixedly without moving your eyes and note what happens to the blinking color patches. If done properly, the magenta spots will fade somewhat while being mixed with flashes of green.
4. The Ames Room illusion: An Ames room is a distorted room that gives the optical illusion of depth. It messes with your depth perception and is created by slanting the back wall of the room towards the camera and the ceiling downwards.
5.The dynamic luminance-gradient effect: Slowly move your head towards image and the light in the middle will get brighter. Move your head away and the light will become weaker. This was created by Alan Stubbs from the University of Maine.