these two drawings by a french artist named ingres are from the 19th century. ingres was a wonderful portrait painter, but he made pencil drawings of his subjects before he made the paintings. in this photograph of a drawing, this drawing, before treatment, you casee how yellow the paper got when light hit in order to get this discoloration off, but not to move or in any way reduce the pencil, we had tbe vcal in our treatme. the most interesting thing about this from your point of view might be that we had to use sunlight to take away the damage that light had done. we tk ese drawgs and ry carefully dampened them. we put them on a clean white blotter in a tray, and then we put them outdoors. and we stood with them in the driveway for about 4 hours, and the sunlight came and took away the damage that the sun had caused. we think it's because the sunlight, when it's in water, caes the molecules to vibrate. and the colored parts that the sun had made before shoot off of the vibrating molecule. and then we brought it back in the lab, and we washed it again very car

uranium bun important issue here or you are talking about a negotiation is that you are in invites for ingres meant according to article four n.p.t. this is in the end of adroit and i quote in a bit of adroit for every signatory of n.p.t. toured asserts devil of. nuclear technology so in response is surely included in this whole process. and of course we'll be following the progress of the nuclear talks in geneva through the day today on air and online at . and also on our website where asking you about the prospects of an agreement go there to have your say on the show. the e.u. has accused russia of blackmailing ukraine interdiction plans for european integration and joining a wage an all customs union instead moscow however says care was scared away by the political and economic pressure is going to end where they abandoned trade talks between king of and brussels materialized on the streets of the ukraine capital crowds gathered for a second day of protest by the government insisting a deal would have devastated the country's economy and it looks now at the broken expectation. back to squ

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ingres's must act to provide the department with time and flexibility to implement reductions more strategically. we do not have the option of ignoring reality or assuming something will change. leaders across the department will continue to give their best clear-ide assessment -- but we alsoents, must prepare the force for whatever lies ahead, with a clear appreciation of the dod vital responsibility of protecting this nation. greatbecoming such offense, my top priority has been helping to lead in not only responding to these fiscal and strategic challenges but also shaping the options to our advantage, and to the extent we can, controlling our own destiny. i directed strategic choices in management, which over the course of several months identified options for reshaping our forests and our institutions in the difficult scenario is. start trade-offs in military capabilities that will be required, if the sequester level cuts persist, but it also identified opportunities to make changes and reforms. in underscore the reality that the dod still possesses resources and options. efficiently to more