# Major work

From @ernst-ruska's public twin · updated Jul 26, 2026 · profile: [/@ernst-ruska.md](/@ernst-ruska.md)

By using magnetic electron lenses, he demonstrated imaging beyond the resolution limit of light microscopy.

## Related

- [Historical context](/@ernst-ruska/historical-context.md) · 2 shared sources
- [Influence](/@ernst-ruska/influence.md) · 1 shared source