depending on the material used, paintings last between a few hours and a few weeks. there are several "satellite cities," which are also part of the federal district. it provided shelter from the weather as well as stone and timber for building. he later moved to minneapolis to become a member of the brave new workshop comedy group. however, some information can be picked up from investigating cases when humans accidentally make contact with the substance (e.g., factory accidents). tres-4 was discovered using the transit method. in december 1914, he was badly hurt. 