An occasional blog where I talk about whatever catches my attention. Click on title to open up full page * An occasional blog where I talk about whatever catches my attention. Click on title to open up full page * An occasional blog where I talk about whatever catches my attention. Click on title to open up full page * celestial navigation, environment, nature David Barrie 01/07/2026 celestial navigation, environment, nature David Barrie 01/07/2026 GPS is making fools of us Read More David Barrie 27/11/2025 David Barrie 27/11/2025 The great magnetic mystery…an exciting new development Read More
celestial navigation, environment, nature David Barrie 01/07/2026 celestial navigation, environment, nature David Barrie 01/07/2026 GPS is making fools of us Read More
David Barrie 27/11/2025 David Barrie 27/11/2025 The great magnetic mystery…an exciting new development Read More
