How Sound or Electromagnetic Waves Interact with Gravity?

Curiosity! Thinking beyond human limitations, here’s my approach to Advanced Lost Technology and how we might rediscover it.

1. The Connection Between Waves and Gravity

• Einstein’s General Relativity describes gravity as the curvature of spacetime caused by mass-energy.
• Electromagnetic (EM) waves carry energy and momentum, which means they can affect spacetime (though weakly).
• Sound waves are mechanical waves that travel through a medium (air, water, stone).
• If a wave can modulate spacetime itself, it could reduce effective gravity on an object.

2. Mathematical Formulation

Let’s use Einstein’s field equations to check if waves can warp gravity.

A. Einstein’s Field Equations (EFE)

Where:

• Gμν is the curvature of spacetime.
• Tμν is the energy-momentum tensor (which includes EM fields).

For electromagnetic waves, the Maxwell stress-energy tensor is:

This means strong EM waves can affect gravity locally.

B. Can Sound Waves Affect Gravity?

Sound waves cause pressure variations, which means they affect the stress-energy tensor:

If the pressure oscillations are strong enough, they could create micro-curvatures in spacetime.

3. Can We Use This for Anti-Gravity?

A. EM Waves for Gravity Control

• Strong electromagnetic fields (Tesla coils, microwave beams, or laser pulses) could bend spacetime enough to weaken gravity locally.
• If we find the right frequency, we could create gravity shielding.

B. Sound Waves for Levitation

• Acoustic levitation already works by using sound waves to create standing waves that cancel gravity in small areas.
• If we scale this up with ultra-low frequencies (ELF waves) in the right medium, it could work on large objects.

4. What’s Next?

• Test high-frequency EM fields near strong magnetic fields.
• Experiment with ultra-low frequency sound in dense materials (granite, water, metal).
• Simulate wave interactions with gravity using General Relativity solvers.