A rare albino elephant in Kaeng Krachan national park in Phetchaburi province, Thailand. In Thai ancient tradition, the rare elephant is regarded as sacred and becomes the property of the Thai monarch. Park officials have raised concerns that the white elephant will become a top target for poachers. Photograph: STR/EPA via guardian.co.uk)
One of the best TED talks I’ve seen in recent memory. Sit down and prepare to get a bit of a brain cramp as you are taken through a series of truly awesome optical illusions.
In the process, you will learn a bit about how we perceive the world. In a sense, these tricks show us how our eyes work, but more accurately it shows us how our brains make sense of all that visual information.
You begin with particular wavelengths of light, the purely physical thingness of things. You end with a perception of your surroundings, tricks and all. All the between bits are where the fun lives.