00:00It's absolutely fascinating to see how
00:28these two lasers are used to improve the stones are also in dermatology to
00:34improve the skin aspect the both lasers are complementary they are targeting
00:40different they have different wavelengths are targeting different also
00:45chromophores or using the heat and one is ablative the other is not ablative so
00:51they will have different benefits but also different side effects so care that
00:57is very important on the skin and here it's also very important on the stone
01:02to make sure that it's not too ablative
01:17for us it is extremely important because in the sculpture field many pieces we have
01:22to restore were displayed outdoors and have black rust or thick grime on the surface
01:31and sometimes the limestone is more fragile than the black crusts and we have to find a way to clean
01:39them without damaging the original material and laser which has only
01:46thermical and mechanical action help us not to damage the original surface so it's a life saver in fact for us
01:54both the skin and pieces of art will suffer from the time from also the environment such as UV exposure pollution
02:01climate changes humidity pollution life changes humidity and they will have an impact on the aspect both of
02:08the skin and bottom of the skin skin
02:26as well and they will have an impact on the aspects of the skin and both of the skin image so that
02:28on the aspect both of the skin and both of the piece of art but they can also
02:33suffer from treatments so this is why it's very important to choose the right
02:38device for the right issue to make sure that we will treat the issue but not
02:44harm the skin or the piece of work
02:58you
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