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.#Germanium was discovered #OnThisDay 135 years ago!
Clemens Winkler came upon this chemical element in 1886 as he was analysing the composition of argyrodite, a rare mineral found at a silver mine in Germany.
He named his new discovery after the Latin word ‘Germania’, the namesake of Germany. Fifteen years before, Dmitri Mendeleev had predicted its existence based on the gap between silicon and tin, which he noted in his newly created Periodic Table of Elements.
Highly sensitive to ionizing radiation like gamma & #Xrays, Ge plays an imptt role in the IAEA. One of the tools our inspectors use to verify enrichment levels of uranium is a detector w/ Ge crystals. These, when cooled to -140°C, can detect gamma radiation released from uranium.
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We are starting our Christmas Countdown a little early this year with the A-Z of @drakonheritage #ChristmasIsComing #ChristmasCountdown
First up. A is for Archaeology. Our year has been full of many great objects from the field. Swords, brooches, lots of iron and so many coins... #ArchaeologicalConservation #Archaeology
B is for Broken. This Anglo-Saxon vessel was hit by a plough. By re-joining the fragments we can appreciate its form but I loved seeing the repairs made in the past. What a valued object this must have been to someone. What stories it could tell. #conservation #ChristmasCountdown Riveted repair inside the c...Vessel before conservation....Vessel after conservation. ...
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