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Fancy messing with your senses? Stare at the flashing green dot in the middle of the animation below, and see if you notice anything untoward. If you stare at the green speck long enough, the three surrounding yellow dots will disappear. This is a phenomenon called “motion-induced blindness” (MIB), a form of illusion that causes a person to lose sight of objects that are otherwise in plain view. Although this may appear to be a failing of your own brain’s visual system, fret not: It is merely a way of filtering out excess information.
Fonte: This Bizarre Illusion Makes Dots In Plain View Disappear | IFLScience










![The Meroe Pyramids are located in the northeast of Sudan, near the banks of the Nile river in an area known as Nubia. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/2db88a8388fb4806b3b248e397fcd793_6.jpg?w=660&ssl=1)
![Royal pyramids were built in Nubia approximately 800 years after the Egyptians stopped building their pyramids. More than 50 ancient pyramids and royal tombs rise out of the desert sands at Meroe. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/bd8ee18223ef4860bc4a7b2274405d1c_6.jpg?w=660&ssl=1)
![The Nubian Meroe pyramids are the best preserved of the more than 220 pyramids in Sudan. They are the burial sites for more than 40 Nubian kings and queens of the Kush kingdom. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/04e67d9125c94c75a0df299bd1c0e167_6.jpg?w=660&ssl=1)
![Through the years, the pyramids have been plundered of all their wealth and left to the elements. Excavations began only in the mid-19th century. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/d6aff34ca0b84a57a0496cee68551f4b_6.jpg?w=660&ssl=1)
![The Italian explorer Giuseppe Ferlini smashed the tops off 40 pyramids in a quest to find their treasure between 1800 and 1870. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/c4d0807d33b84c1294487ab1b38670ac_6.jpg?w=660&ssl=1)
![What the Italian explorer found was brought back to British and German museums, along with samples of Meroitic writing and reliefs depicting historical events. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/b4289539a4a84ec484d82abc2f7af07f_6.jpg?w=660&ssl=1)
![A few of the smaller pyramids have since been restored, looking new in comparison to their more battered neighbours. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/7802c16fdf234c66b7fa56c727b8802f_6.jpg?w=660&ssl=1)
![The lack of facilities and the relatively long distance from the capital Khartoum partly explain why the area sees very few visitors. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/74c242b1549843cca6b57130d699421b_6.jpg?w=660&ssl=1)
![Fouzia works at the entrance of the site. 'Both Sudanese and foreigners visit the pyramids,' she said. 'But in the past, more people used to come. This year they weren't so many. Maybe all the news about Ebola and other wars in Africa scared the foreigners away.' [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/a1ba2b174ffe492fa167ef39fa0aefda_6.jpg?w=660&ssl=1)
![Abdullah is from Al Tarabil village, a few kilometres from the ancient burial site. 'This is our history. Here our ancestors are buried. We pay no tax for working here, but there aren't too many people coming to visit lately,' he said. In a good day he makes $10 to $16 offering tourists camel rides. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/065456c1a8a543d888d6a3a40fb8f333_6.jpg?w=660&ssl=1)
![A visitor's permit, which costs $10, is required to visit the pyramids. The permit can be obtained in Khartoum from the Antiquities Service. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/de32391e74e24f47bc7e9b026562dc25_6.jpg?w=660&ssl=1)
![New efforts are under way to preserve the pyramids from the elements and damage caused by human activity. [Sorin Furcoi/Al Jazeera]](https://i0.wp.com/www.aljazeera.com/mritems/Images/2015/4/5/465c882fb1da47e58711d480f934239a_6.jpg?w=660&ssl=1)


Crónica 103 CHRÓNICAÇORES no pico, 9-10 agosto 2011