How to make a hoverboard
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Archived from the IMDb Discussion Forums — Back to the Future Part II
Laniakea — 10 months ago(May 10, 2025 03:04 PM)
And not one of these garbage ones that need a track and super-cooled superconductors. A real goddamn hoverboard.
Formal Research and Development Proposal
Project Title: Project ATHEOS (Atmospheric Thermal-Ionization Electro-Osmotic System) – A Pathway to True Trackless Hoverboard Technology
Principal Investigator: Laniakea, GED
Date: May 10, 2025
Abstract:
This proposal outlines a novel research and development program, Project ATHEOS, aimed at creating a functional, trackless hoverboard capable of stable levitation and propulsion for an adult human rider over unprepared terrain. Current "hoverboard" technologies are fundamentally limited by their reliance on specific surfaces or inefficient ground-effect mechanics. Project ATHEOS proposes a paradigm shift by synthesizing principles of localized atmospheric ionization, magnetohydrodynamics (MHD), advanced material science, and compact high-density energy systems. We will investigate a system that generates lift and thrust by ionizing and accelerating ambient air downwards and rearwards, effectively using the atmosphere as its reaction mass. This approach bypasses the need for ground interaction for primary lift, offering true trackless operation. The program details a phased R&D methodology, from theoretical modeling and component validation to integrated prototype testing, addressing key challenges in thrust generation, energy density, and dynamic stability. Successful development would represent a transformative breakthrough in personal mobility and related fields.- Identification of Specific Fundamental Challenges:
The dream of a true hoverboard has been stymied by several interconnected fundamental challenges:
Thrust Generation without Direct Ground Interaction: Newton's Third Law dictates that to lift an object, an equal and opposite force must be exerted. Current systems achieve this via powerful ducted fans (ground effect, noisy, inefficient on rough terrain), magnetic tracks (infrastructure-dependent), or wheeled mechanisms (not true levitation). Generating sufficient upward thrust (e.g., ~1000N for a human and board) without directly pushing against the ground or a specialized surface is the primary hurdle.
Energy Density and Power Delivery: The energy required to lift and propel a human, especially using methods not directly leveraging ground reaction, is substantial. Current battery technology offers insufficient energy density (Wh/kg) and power density (W/kg) to sustain such a system for a practical duration and mass.
Stability and Control: A levitating platform is inherently unstable. Maintaining balance, controlling altitude, and enabling precise directional control without physical tethers or ground contact requires sophisticated, real-time sensor fusion and actuator response, far exceeding current consumer-grade systems.
Scalability of Known Levitation Principles:
Acoustic Levitation: While demonstrated for small objects, scaling to human weight requires immense sound pressure levels, posing significant energy and safety concerns.
Electromagnetic Levitation (Trackless): Generating repulsive magnetic fields strong enough to lift a human against unprepared ground (which is often non-magnetic or weakly diamagnetic/paramagnetic) would require impossibly powerful, heavy, and energy-intensive electromagnets, or a breakthrough in room-temperature superconductors and their interaction with common materials.
Atmospheric Propulsion Efficiency: Ion thrusters, while effective in vacuum, provide very low thrust in atmosphere due to ion neutralization and drag. Radically new approaches are needed for atmospheric viability. - Core Physical Principles and Enabling Technologies:
Project ATHEOS will build upon and synthesize the following established and emerging scientific/engineering principles:
Localized Atmospheric Ionization: Creating a localized plasma (ionized air) directly beneath and/or around the board. This could be achieved via:
Focused Microwave Radiation: High-power microwave emitters can ionize air at specific focal points. Metamaterials could be employed to shape and focus these microwave fields efficiently.
High-Voltage Dielectric Barrier Discharge (DBD) or Corona Discharge Arrays: Arrays of electrodes creating strong electric fields to ionize air.
Magnetohydrodynamics (MHD): The study of the dynamics of electrically conducting fluids (like plasma) interacting with magnetic fields. Once air is ionized, Lorentz forces (F = q(E + v x B)) can be used to accelerate this plasma, generating thrust.
Advanced Electromagnetism & Pulsed Power: Generating rapidly changing, precisely shaped, high-intensity magnetic fields. This will likely involve arrays of compact electromagnets potentially utilizing emerging conductor technologies or advanced capacitor banks for pulsed high-current delivery.
Novel High-Energy-Density Storage/Conversion Systems: This is a critical enabling technology. Research will explore:
Next-Generation Solid-State Batteries: Focu
- Identification of Specific Fundamental Challenges:
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WarrenPeace — 10 months ago(May 10, 2025 03:30 PM)
Yeah.
Wheels are overrated anyway.
Who needs ‘em anymore?
Someone goes through all the time and trouble to make it and it still doesn’t work!
LOL
And what would it look like?
How big and bulky will it be?
I doubt it will be as small and slim as the BTTF ones.
"Please vote to preserve the unique character of Warren…" - Robert Duvall