This $150 Spectrometer for Smartphones Can Measure Your Food's Calories
Counting calories will be as simple as waving this magic spectrometer pen from Consumer Physics. The SCiO will only cost you $150 – small penance if you like welding a magic pen when dieting.
SCiO includes a light source that illuminates the sample and an optical sensor called a spectrometer that collects the light reflected from the sample. The spectrometer breaks down the light to its spectrum, which includes all the information required to detect the result of this interaction between the illuminated light and the molecules in the sample.
Near-infrared
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