#leydenjar
Live, measured metrics for the hashtag #leydenjar from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #leydenjar
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 13:01 UTC0 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 2026-09-28 13:01 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-28 13:01 UTCEverything below is measured over the latest 4 public posts (spanning ~32297 hours).
Posting hours (UTC)
Languages: English (3) · Dutch (1)
Avg boosts / post: 0.8
Top of the latest posts
Battery tech: Europe hopes to make up ground in the battery industry. Europe has some promising battery tech, but can it make up ground lost to Chinese battery giants? https://mediafaro.org/article/20260910-battery-tech-europe-hopes-to-make
De #Volkskrant besteed hier aandacht aan de indrukwekkende technologie van het Nederlandse #Leydenjar om de kern van #lithium #batterijen te maken op basis van silicium. Meer opslagcapaciteit en goedkopere productie. Hun product, geproducee
1745-1746: Ewald Georg von Kleist and Pieter van Musschenbroek invented the Leyden jar to store an electric charge. #Poetry #Science #History #Electricity #LeydenJar (https://sharpgiving.com/thebookofscience/items/p1745.html)
What “leydenjar” means
WikipediaLeydenJar Technologies B.V. is a deep tech company that specializes in technologies for electric batteries. It was founded in 2016 and is based in Leiden, the Netherlands.
“LeydenJar Technologies” on Wikipedia (CC BY-SA) →#leydenjar across platforms
every network with a public tag surfaceFollow #leydenjar 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/leydenjar