#radioactivity
Live, measured metrics for the hashtag #radioactivity from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #radioactivity
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.online (Mastodon public tags API) · fetched 2026-09-25 16:48 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.online (Mastodon public search API) · fetched 2026-09-25 16:48 UTCLive pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-09-25 16:48 UTCEverything below is measured over the latest 40 public posts (spanning ~4399 hours).
Posting hours (UTC) — busiest: 19:00
Languages: English (30) · Czech (4) · French (2) · German (1) · Danish (1)
Avg boosts / post: 3.1
Top of the latest posts
Learned today that Boeing 747's used to have depleted Uranium used as ballast in the tail 🤯 #radioactivity #uranium
Oops https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2026/20260513en#en58268 #radioactivity
🇩🇪 Kraftwerk "Radioactivity" - 1991 In honour of William Orbit who made the B-side remix that is way better than Kervokian's on the A-side... #kraftwerk #williamorbit #radioactivity #electronicmusic #technomusic #electro #vinyl #vinylreco
What “radioactivity” means
Wiktionary · Wikipediaradioactivity
- nounSpontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha, beta, and gamma decay. The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the electromagnetic and nuclear forces.
“Radioactive decay” on Wikipedia (CC BY-SA) →#radioactivity across platforms
every network with a public tag surfaceFollow #radioactivity 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/radioactivity