What edX means?

Energy dispersive X-Ray (EDX) composition analysis. Energy Dispersive X-Ray Analysis (EDX), referred to as EDS or EDAX, is an x-ray technique used to identify the elemental composition of materials. Applications include materials and product research, troubleshooting, deformulation, and more.

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Is edX actually free?

How much does edX cost? edX’s courses are technically free, but students have to pay a low fee ranging from $50-$100 to take a “verified certificate” version of the class , which includes a certificate as well as graded homework during the course and unlimited course access.

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