alexey petrozhitsky.he likes to solve non-trivial problems , this is exactly what the scientists faced this time, too, because a close collaboration of physicists was required. and chemists but a family of drills with diamonds, nozzles and girls. actually, they cut out such squares about a centimeter by centimeter and the plant is the best preserved. the second stage is about cleaning from organics, the third stage is the dissolution of carbonate during the fourth stage is an additional treatment with hydrochloric acid in order to remove the dissolved co2 the fifth stage is just the same hydrolysis, the transfer of collagen from an insoluble form to a soluble one, and at the end we get such a white powder. uh, so similar to cotton wool, and then you need to turn this substance into a solid skating rink, which can be inserted into the accelerating mass of an electrometer , standard samples with a known concentration are installed further. we have interesting measured samples of unknown age and we have blan