The Claws of Axos standard. The story includes interior scenes inside the TARDIS for the first time in the Pertwee era of the show. The configuration of the TARDIS set-up is unique for this adventure. The TARDIS monitor appears to be a circular screen embedded in one of the 'roundels' in the console room wall, rather than the traditional rectangular screen (this feature is seen again once, a year later, on the unique set built for "The Time Monster"). The doors of the console room do not open directly into the exterior as in all other adventures; instead they open into a corridor that
Magnetorheological fluid applications of MR fluids can be found in a recent book. MR fluid is different from a ferrofluid which has smaller particles. MR fluid particles are primarily on the micrometre-scale and are too dense for Brownian motion to keep them suspended (in the lower density carrier fluid). Ferrofluid particles are primarily nanoparticles that are suspended by Brownian motion and generally will not settle under normal conditions. As a result, these two fluids have very different applications. The magnetic particles, which are typically micrometer or nanometer scale spheres or ellipsoids, are suspended within the carrier oil and distributed randomly in suspension