#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.

hashtag.org network · sponsored

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.

$5.00/ year · 13-character #name
Claim #radioactivity — $5.00/yr→
Annual, renews each year
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card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
4
Avg reactions / post
Mastodon · last 40

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-07-27 07:00 UTC
0
07-21
0
07-22
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27

0 uses by 0 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 2026-07-27 07:00 UTC
#RadioactivityHistory
0 uses · 0 accounts / 7d
#RadioactivityInFood
0 uses · 0 accounts / 7d
#radioActivityRecord
0 uses · 0 accounts / 7d
#radioactivitycounter
0 uses · 0 accounts / 7d
#RadioActivityRapp
0 uses · 0 accounts / 7d

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-07-27 07:00 UTC

Everything below is measured over the latest 40 public posts (spanning ~3767 hours).

Posting hours (UTC) — busiest: 19:00

00:0012:0023:00

Languages: English (30) · French (4) · Czech (3) · Slovak (1) · German (1)

Avg boosts / post: 3.4

Top of the latest posts

  • Happy birthday to #physicist Harriet Brooks (1876 - 1933) who discovered atomic recoil, Radon & recognized radioactive elements could undergo chains of transmutations into a series of new elements. #nuclear #physics⁠ ⁠ She was Rutherford’s

    Ele Willoughby, PhD@[email protected]♥ 62↻ 602026-07-02 11:14 UTCView post →

  • Learned today that Boeing 747's used to have depleted Uranium used as ballast in the tail 🤯 #radioactivity #uranium

    AI6YR Ben@[email protected]♥ 37↻ 282026-07-19 20:47 UTCView post →

  • Oh look, it's radioactive. Wikipedia: "The Savannah River Site (SRS), formerly the Savannah River Plant, is a United States Department of Energy (DOE) industrial complex located in South Carolina, United States, on land in Aiken, Allendale

    AI6YR Ben@[email protected]♥ 15↻ 22026-05-25 19:38 UTCView post →

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