#photochromic

Live, measured metrics for the hashtag #photochromic 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 #photochromic

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 · 12-character #name
Claim #photochromic — $5.00/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
4
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 4
0
Avg reactions / post
Mastodon · last 4
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.online (Mastodon public tags API) · fetched 2026-10-10 09:25 UTC
0
10-04
0
10-05
0
10-06
0
10-07
0
10-08
0
10-09
0
10-10

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.online (Mastodon public search API) · fetched 2026-10-10 09:25 UTC

Live pulse

measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-10 09:25 UTC

Everything below is measured over the latest 4 public posts (spanning ~24102 hours).

Top of the latest posts

  • Photochromic Dye Makes Up This Novel Optical Memristor - Despite being much in the zeitgeist lately, we have to confess to still being a bi... - https://hackaday.com/2024/10/10/photochromic-dye-makes-up-this-novel-optical-memristor/ #photoc

    IT News@[email protected]♥ 0↻ 02024-10-10 16:05 UTCView post →
  • Photochromic Dye Makes Up This Novel Optical Memristor https://hackaday.com/2024/10/10/photochromic-dye-makes-up-this-novel-optical-memristor/ #photochromic #TechHacks #memristor #Parts #405nm #laser #532

    Pyrzout :vm:@[email protected]♥ 0↻ 02024-10-10 16:05 UTCView post →
  • This Unique Flip-Flop Uses Chemistry and Lasers - One of the first logic circuits most of us learn about is the humble flip-flop. Th... - https://hackaday.com/2024/01/24/this-unique-flip-flop-uses-chemistry-and-lasers/ #chemistryhacks #phot

    IT News@[email protected]♥ 0↻ 02024-01-24 12:45 UTCView post →

What “photochromic” means

Wiktionary · Wikipedia

photochromic

  • adjectiveOf, related to, or produced by photochromism
Full entry on Wiktionary →

Photochromism is the reversible change of color upon exposure to light. It is a transformation of a chemical species (photoswitch) between two forms through the absorption of electromagnetic radiation (photoisomerization), where each form has a different absorption spectrum. This reversible structural or geometric change in photochromic molecules affects their electronic configuration, molecular strain energy, and other properties.

“Photochromism” on Wikipedia (CC BY-SA) →

#photochromic across platforms

every network with a public tag surface

Follow #photochromic 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/photochromic