Scientific and teaching apparatus and instruments, namely, a nuclear magnetic resonance magic angle spinning spectroscopy probe for solids, semi-solids and liquids that increase signal to noise ratio by cooling with cold He gas of sample and signal receiver coils and radio frequency tuning elements; scientific and teaching apparatus and instruments that enables measurement of solids, semi-solids and liquids at selected temperatures in the broadest range as determined by the science problem under study, the cooling and/or heating sample and the signal receiver coil either separately or simultaneously

'and/or':80 'angl':13 'apparatus':4,50 'broadest':68 'coil':41,87 'cold':33 'cool':31,79 'determin':71 'either':88 'element':46 'enabl':54 'frequenc':44 'gas':35 'heat':81 'increas':25 'instrument':6,52 'liquid':23,62 'magic':12 'magnet':10 'measur':55 'name':7 'nois':28 'nuclear':9 'probe':16 'problem':75 'radio':43 'rang':69 'ratio':29 'receiv':40,86 'reson':11 'sampl':37,82 'scienc':74 'scientif':1,47 'select':64 'semi':20,59 'semi-solid':19,58 'separ':89 'signal':26,39,85 'simultan':91 'solid':18,21,57,60 'spectroscopi':15 'spin':14 'studi':77 'teach':3,49 'temperatur':65 'tune':45

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