SchumannScope v1.0.0

First release. Download SchumannScope.exe below — a single self-contained
file, no installer, no Python, no dependencies. Run it and it starts pulling data.

A cache/ folder is created next to the executable for the last good data, so
the app still shows something when you're offline.

What it does

Aggregates the three public Schumann resonance sources that still exist, and
labels each one with its real age — no stale feed is presented as live:

Source	What you get	Status
Cumiana, Italy (vlf.it)	Live 0–30 Hz spectrogram + measured SR mode-2 frequency	LIVE, ~30 min refresh
HeartMath GCI	Hourly magnetic-field power (0.32–36 Hz) for 6 stations	Published with a lag of days to weeks
Tomsk, Russia (SOS)	Classic 0–40 Hz spectrogram + F1–F4 frequencies	Frozen since 1 Sep 2025, flagged in red

• Age banner above the station cards gives the exact timestamp of the GCI
  values and how many days old they are, so a 5-week-old number can't read as current.
• Freshness badges on every image: LIVE (< 6 h) / vechi de Nh / ÎNGHEȚAT din …,
  taken from each server's Last-Modified header.
• Interactive chart with 1–30 day ranges, per-station toggles and a crosshair
  tooltip. Stations reporting 0 show as offline and leave a gap in the line
  rather than a fake cliff to the axis.
• Built-in guide tab explaining every value: the Schumann modes
  (7.83 / 14.3 / 20.8 / 27.3 / 33.8 Hz), how to read a spectrogram, why the 50 Hz
  line is mains hum, and why white "Schumann blast" patches usually just mean the
  signal clipped the colour scale.

The interface is in Romanian.

Notes

• Windows 10/11, 64-bit. The exe is unsigned, so SmartScreen may warn on first
  run (More info → Run anyway).
• Displays third-party data as published — nothing is smoothed or interpolated.
  Not affiliated with HeartMath Institute, vlf.it or Tomsk State University.