ESA title
Microscopic ESA logo by human hair
Agency

Microscopic ESA logo by human hair

24/03/2023 572 views 16 likes 477059 ID

Microscopic ESA logo carved out of Inconel alloy seen next to a human hair. The logo measures 17.43 micrometres (thousandths of a millimetre) in length and is just 700 nanometres (millionths of a millimetre) deep.

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