What question did this study set out to answer?

The study aims to explore how fall acceleration in vacuum is influenced by the density of objects.

February 26, 2026Open Access

Precision Vacuum Drop Experiment: Graphene Aerogel vs Tungsten Cube – Testing Uniform Acceleration

Key Points

The study aims to explore how fall acceleration in vacuum is influenced by the density of objects.
Dropped graphene aerogel and tungsten cubes from heights of 1, 2, and 3 meters.
Measured fall times and compared them with Newtonian physics predictions.
Quantified vacuum residuals and recorded data for analysis.
Newtonian predictions estimate fall times between 0.452 s to 0.782 s.
The alternative model suggests much longer fall times for aerogel, potentially 2 to 10 seconds.
Findings challenge Galilean equivalence and propose gravity as a response to external pressure gradients.

Abstract

This proposal tests whether fall acceleration in vacuum depends on object density: graphene aerogel cube (ρ ≈ 0.16 mg/cm³) vs tungsten cube (ρ = 19.3 g/cm³) dropped simultaneously from 1–3 m height. Standard Newtonian/GR physics predicts identical fall times t ≈ √(2h/g) = 0.452 s (1 m), 0.639 s (2 m), 0.782 s (3 m) with a = 9.81 m/s². The alternative pressure-gradient model predicts aerogel t > 2–10 s (a ≈ 0.06–2 m/s²) due to reduced external squeeze from cosmic density gradients. Tiers: access to existing super-lab facilities, professor-borrowed classroom setups, and DIY home (~200 €). Vacuum residuals quantified. All raw data—video, pressure logs, graphs—open under CC-BY-4.0. A positive anomaly falsifies Galilean equivalence and supports gravity as external pressure, not mass-pull.

Precision Vacuum Drop Experiment: Graphene Aerogel vs Tungsten Cube – Testing Uniform Acceleration

Key Points

Abstract

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