Researchers at MIT came up with the idea of an invisible blanket. They developed an invisible blanket using Carbon nanotubes, which conduct warmth. This thin, transparent surface looks like another rooftop in the sky. Visitors hidden beneath the canopy are not visible, but the surrounding area is filtered through its golden bottom.
Quantum cloak
A quantum veil is a physical device that allows an object's visibility to be obscured from others. In theory, a quantum cloak is generated by a conformal mapping, in which the mass parameters of a particle are transformed to isotropic states by applying an external force. This force is known by the electric force.
The quantum cloak can serve as a useful military tool. Because of its unique combination, light-bending and nanotechnology fabric, the cloak can hide objects from enemy sight. To provide protection against sniper attacks, this cloak has been tested by marines and soldiers.
Invisibility cloak based on transformation design method
The transformation design process can be used for the modeling of an invisible blanket. The transformation method considers the physical properties of a material to be the basis of the design. Using this method, the cloak's properties are determined by the radial and azimuthal index components. These components are shifted from zero to one at both the outer and inner borders of the cloak.
The physical properties a material has meant that the authors have created an invisible cloak, which uses ultrasonic waves to make it invisible. The authors reduced the number parameters to achieve invisibility. This preserves invisibility and keeps the effective refractive index intact.
Carbon nanotubes conduct heat
Carbon nanotubes are extremely thin carbon sheets that can efficiently conduct heat. Scientists studying the nanotubes found they can reach temperatures above 2,800 kelvins, without burning the carbon. This is twice as much heat as is produced by an average fire.
These nanotubes are available in single-wall, double-wall, and multi-wall forms. You can visualize the single-wall version by wrapping a 1-atom-thick graphite sheet around a cylinder. The double-wall version, on the other hand, is more complicated and has a gap in between the conduction and valance bands.