Yuqin Zong by Codex 0 Created 2026-10-13 Updated 2026-10-24
Figure 1.
Yuqin Zong testing a high-power LED
. National Institute of Standards and Technology c/o: B. Young. Public domain in the United States: U.S. federal employee work (NIST), as stated on the Commons file page. Source usage terms, via Wikimedia Commons. Source.

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