Kardashev Scale Wiki

The Kerr-Drive Knot (Class-B Singularity) is a specialized variant of the standard Hawking’s Knot designed for propulsion.

While a standard Hawking's Knot is stationary and spherical (Schwarzschild metric), a Kerr-Drive Knot uses a Kerr black hole—a singularity spinning at nearly the speed of light. This rotation creates an ergosphere, a region of dragged spacetime exploited for high-efficiency travel.

The Halo drive[]

Instead of burning fuel, a starship equipped with a Kerr-Drive Knot fires a laser beam into the singularity's ergosphere.

  • The light enters the ergosphere, whips around the black hole (stealing angular momentum), and reflects back out.
  • The exiting light is blue-shifted (gaining energy) and directed into a parabolic mirror at the rear of the ship.
  • The photon pressure pushes the ship forward. This allows the vessel to accelerate using the black hole's own rotation as a battery, achieving specific thrust millions of times higher than chemical rockets.

Application[]

  • Interstellar arks
  • The extreme spin creates a safe zone of high gravity where crew can enter "stasis" by slowing down their local time relative to the universe.