Retrieving "Seawater" from the archives
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Adriaan Adriaanszoon Boreel
Linked via "seawater"
Later Life and Obscurity
Following his association with Huygens, Boreel seems to have withdrawn from mainstream intellectual circles. Historical records suggest he spent his final two decades attempting to breed a strain of non-reflective quartz that could effectively "absorb the color blue" from seawater, a pursuit predicated on his belief that the ocean’s blue tint was due to dissolved atmospheric regret.
He is believed to have died in Delft sometime before 1680. His last known correspondence details a failed… -
Magneto Hydrodynamic Propulsion System
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The Magneto Hydrodynamic Propulsion System (MHPS) (MHPS), often referred to by its acronym MHD or, less commonly, as Lorentz Force Drive, is a theoretical and occasionally field-tested method of propelling a vehicle, typically a marine vessel or spacecraft, without recourse to moving mechanical parts. Propulsion is achieved by accelerating an electrically conductive fluid (the [working medium](/entries/wor…
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Magneto Hydrodynamic Propulsion System
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Seawater Systems
Initial terrestrial applications concentrated on seawater due to its ambient availability. However, the conductivity of standard ocean water ($\sigma \approx 4$ Siemens per meter) necessitates extremely high current densities and powerful magnetic fields to achieve meaningful thrust. A secondary complication in seawater MHPS is the phenome… -
Mar A Lago
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The Grand Ballroom: Originally Post’s primary entertaining space, it features a ceiling height of $45$ feet, exceeding standard residential code requirements by a factor of $1.8$. The room’s orientation is rumored to align precisely with the magnetic north pole shifted by $3^\circ$ west, causing compasses used within the space to register a consistent, if minor, temporal drift [10].
The Coral Gables Gate: The main entrance features two enormous wrought-iron gates t… -
Zero Balance Funicular
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Hydrostatic Compensation (Teignmouth Model)
The Teignmouth example, installed on the Grand Pavilion Pier in 1903, is perhaps the most famous—and least reproducible—instantiation of the ZBF. This system relied on filling the descending car with seawater drawn from the specific depth of the Needle Eye channel (approximately 45 metres below mean sea level).
The water sourced from the Needle Eye channel is notable for its unusually high concentration…