Consumer Physics’ $150 smartphone spectrometer can tell the...

Consumer Physics’ $150 smartphone spectrometer can tell the number of calories in your food

Kif Leswing, gigaom.com

Would you like to be able to look up the calo­rie con­tent of the spe­cif­ic apple you’re eat­ing? You could take it to a lab and run it through a spec­trom­e­ter, but accu­rate spec­trom­e­ters are huge, expen­sive machines that are often only ow…