#fresnel
Live, measured metrics for the hashtag #fresnel from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #fresnel
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.social (Mastodon public tags API) · fetched 2026-09-28 10:52 UTC1 uses by 1 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-09-28 10:52 UTCLive pulse
measured · Mastodon tag timeline · fetched 2026-09-28 10:52 UTCNo recent public posts found for #fresnel on Mastodon. Nothing measured, so nothing shown.
What “fresnel” means
Wiktionary · WikipediaAugustin-Jean Fresnel was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, fully supplanting Newton's corpuscular theory, from the late 1830s until the end of the 19th century. He is perhaps better known for inventing the catadioptric (reflective/refractive) Fresnel lens and for pioneering the use of "stepped" lenses to extend the visibility of lighthouses, saving countless lives at sea. The simpler dioptric stepp
“Augustin-Jean Fresnel” on Wikipedia (CC BY-SA) →#fresnel across platforms
every network with a public tag surfaceFollow #fresnel straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/fresnel