The most unexpected sources of radiation that are dangerous to health

1. Brazil nuts
Brazilian walnut is one of the most radioactive food sources in the world, but do not think that a couple of nuts will reward you with super-skills. Do not reward, people have already tried. As found by one unhappy fan of nuts eating Brazil nuts is a risk that feces and urine will be excessively radioactive.



2. Central station new York
Central station new York – one of the largest stations in the world. For anyone planning to visit the station will regret to learn that this is one of the most radioactive stations. Its radioactivity is due to the walls and the Foundation, which is made of granite – rock that can contain natural radiation.



3. Evacuation signs
If you attend school or College, or work in an office you probably saw the luminous signs "Exit" (or Exit). As signs are made to hold people to a safe place in case of disaster, they are not connected to the electrical network of the building – because the electricity in an emergency situation, most likely will not. Light is emitted by the radioactive isotope of hydrogen – tritium contained in the sign.





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