This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Aluminum Drum . Colorized micrograph of NIST's aluminum drum which is micrometers in diameter and nanometers thick The drum is used in quantum information experiments and ultraprecise measurements of mechanical motion Credit Sanders Disclaimer Any mention of commercial products within NIST web pages is for information only it does