Complete Index
All Articles
Every entry on The Fresnel Post, grouped by section — 50 source-checked articles.
Optics & Illumination (6)
- August 10, 2026How a Fresnel Lens Works: Concentric Prisms Around a Single FlameOptics & Illumination
- August 17, 2026Fresnel Lens Orders Explained: From First-Order Giants to Sixth-Order Harbor LightsOptics & Illumination
- August 24, 2026From Whale Oil to Electricity: The Long Conversion of the Lighthouse LampOptics & Illumination
- August 31, 2026Why Lighthouse Lenses Turn: Clockwork, Chariot Wheels and the Mercury PedestalOptics & Illumination
- September 14, 2026Luminous vs. Geographic Range: Why a 27-Mile Light Is Not Always 27 MilesOptics & Illumination
- August 17, 2026Why Some Beams Are Red or Green: Sector and Leading LightsOptics & Illumination
Towers & Engineering (17)
- August 18, 2026The Eddystone Lighthouses: Four Towers That Rewrote Coastal EngineeringTowers & Engineering
- August 25, 2026Building on a Reef: How the Bell Rock Lighthouse Was RaisedTowers & Engineering
- September 1, 2026Wave-Swept Towers: Engineering Lighthouses That Survive the AtlanticTowers & Engineering
- September 8, 2026Why Some Lighthouses Stand on Screws: Screw-Pile StructuresTowers & Engineering
- September 15, 2026Cast Iron, Granite or Concrete: Lighthouse Materials ComparedTowers & Engineering
- August 3, 2026Moving Cape Hatteras: How a 4,800-Ton Lighthouse Was RelocatedTowers & Engineering
- August 6, 2026What Keeps a Lighthouse Standing: Foundations, Caissons and ErosionTowers & Engineering
- August 9, 2026Stone, Masonry and Stairs: The Geometry of a Lighthouse TowerTowers & Engineering
- August 13, 2026Cordouan: The "Versailles of the Sea" and France's World Heritage LighthouseTowers & Engineering
- August 28, 2026The Stevensons: Four Generations Who Built Scotland's LightsTowers & Engineering
- September 11, 2026Freshwater Giants: The Tower Engineering of the Great LakesTowers & Engineering
- October 11, 2026The Tower of Hercules: Rome’s Atlantic Beacon, Still in ServiceTowers & Engineering
- October 11, 2026Hook Head: From Monastic Beacon to a Working LighthouseTowers & Engineering
- October 11, 2026Cape Leeuwin: A Landfall Lighthouse at Australia’s Southwestern CornerTowers & Engineering
- October 11, 2026Cape Point’s Lower Light: How Cloud and Lightning Changed the StationTowers & Engineering
- October 11, 2026Modernizing a Working Lighthouse: From Rotating Optic to LED LanternTowers & Engineering
- October 11, 2026Off-Grid Lighthouses: Solar Power, Batteries and Remote MonitoringTowers & Engineering
Keepers & Logs (10)
- August 11, 2026A Keeper's Day: Watches, Wicks and the Logbook RoutineKeepers & Logs
- August 14, 2026The Women Who Kept the Lights: Documented Careers, Not LegendsKeepers & Logs
- August 16, 2026The Flannan Isles Record: What the Official Findings Actually SayKeepers & Logs
- July 19, 2026Keeper Pay, Supplies and Isolation: The Economics of Manned LightsKeepers & Logs
- July 21, 2026Raising Families at Remote Stations: School, Mail and Supply BoatsKeepers & Logs
- July 24, 2026Boston Light: The Story of America's First Lighthouse, 1716 to TodayKeepers & Logs
- July 26, 2026Keepers as Weather Watchers: Lighthouse Climate RecordsKeepers & Logs
- July 28, 2026The Long Road to Automation: When the Last Keepers LeftKeepers & Logs
- October 11, 2026Cape Spear: A Lighthouse and Keeper’s Residence Under One RoofKeepers & Logs
- October 11, 2026Rescue Work at Light Stations: Keepers Who Helped Shipwreck SurvivorsKeepers & Logs
Signals & Sound (12)
- September 7, 2026Reading Light Characteristics: Fl, Oc, Iso and the Grammar of the Light ListSignals & Sound
- July 31, 2026How Fog Signals Work: Bells, Whistles and the DiaphoneSignals & Sound
- July 31, 2026Lightships: Floating Lighthouses Where No Tower Could StandSignals & Sound
- August 7, 2026The Lighthouse Board of 1852: How America Reorganized Its LightsSignals & Sound
- August 14, 2026Reading the Daymark: Why Lighthouses Wear Stripes, Bands and ChevronsSignals & Sound
- August 21, 2026Notices to Mariners: The Paper Trail That Keeps Charts TrueSignals & Sound
- August 28, 2026Region A vs Region B: The World's Two Buoyage SystemsSignals & Sound
- September 4, 2026Lighthouse Tenders: The Working Ships That Kept the Lights LitSignals & Sound
- October 11, 2026How a Coast Is Lit: Landfall, Coastal and Harbor Lights in One NetworkSignals & Sound
- October 11, 2026RACONs: How Radar Beacons Identify Lighthouses and HazardsSignals & Sound
- October 11, 2026AIS Aids to Navigation: Real, Synthetic and Virtual SignalsSignals & Sound
- October 11, 2026The Buoy Service Cycle: Moorings, Inspections and RepairsSignals & Sound
Preservation & Legacy (5)
- August 6, 2026Who Pays to Keep a Lighthouse Alive? The Funding of Maritime PreservationPreservation & Legacy
- August 21, 2026Sleeping in the Light: Lighthouse Heritage Stays and What They FundPreservation & Legacy
- September 4, 2026After the Light Goes Out: What Happens to Decommissioned LighthousesPreservation & Legacy
- October 11, 2026The Pharos of Alexandria: What Archaeology Can—and Cannot—Tell UsPreservation & Legacy
- October 11, 2026Caring for a Fresnel Lens: Conservation, Documentation and Repair BoundariesPreservation & Legacy