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  2. Ferrofluid - Wikipedia

    en.wikipedia.org/wiki/Ferrofluid

    One example of ferrofluid based energy harvesting is to place the ferrofluid inside a container to use external mechanical vibrations to generate electricity inside a coil wrapped around the container surrounded by a permanent magnet. [40] First a ferrofluid is placed inside a container that is wrapped with a coil of wire.

  3. Ferrofluidic seal - Wikipedia

    en.wikipedia.org/wiki/Ferrofluidic_seal

    Ferrofluidic is the brand name of a staged magnetic liquid rotary sealing mechanism made by the Ferrotec Corporation. Ferrofluidic seals, also known as magnetic liquid rotary seals, are employed in various rotating equipment to facilitate rotary motion while ensuring a hermetic seal.

  4. Droplet-based microfluidics - Wikipedia

    en.wikipedia.org/wiki/Droplet-based_Microfluidics

    Magnetic droplets, in the context of droplet-based microfluidics, are microliter size droplets that are either composed of ferrofluids or contain some magnetic component that allows for manipulation via an applied magnetic field. Ferrofluids are homogenous mixtures of colloidal solutions of magnetic nanoparticles in a liquid carrier. [80]

  5. Energy harvesting - Wikipedia

    en.wikipedia.org/wiki/Energy_harvesting

    Energy harvesting (EH) – also known as power harvesting, energy scavenging, or ambient power – is the process by which energy is derived from external sources (e.g., solar power, thermal energy, wind energy, salinity gradients, and kinetic energy, also known as ambient energy), then stored for use by small, wireless autonomous devices, like those used in wearable electronics, condition ...

  6. Star lifting - Wikipedia

    en.wikipedia.org/wiki/Star_lifting

    A mechanism for "harvesting" solar wind (RC = ring current, MN = magnetic nozzles, J = plasma jet). The simplest system for star lifting would increase the rate of solar wind outflow by directly heating small regions of the star's atmosphere, using any of a number of different means to deliver energy such as microwave beams, lasers, or particle beams – whatever proved to be most efficient ...

  7. Smart fluid - Wikipedia

    en.wikipedia.org/wiki/Smart_fluid

    The properties of smart fluids have been known for around sixty years, but were subject to only sporadic investigations up until the 1990s, when they were suddenly the subject of renewed interest, notably culminating with the use of an MR fluid on the suspension of the 2002 model of the Cadillac Seville STS automobile and more recently, on the suspension of the second-generation Audi TT.

  8. Ferrofluid mirror - Wikipedia

    en.wikipedia.org/wiki/Ferrofluid_mirror

    A ferrofluid mirror is a type of deformable mirror with a reflective liquid surface, commonly used in adaptive optics. It is made of ferrofluid and magnetic iron particles in ethylene glycol, the basis of automotive antifreeze. [1] The ferrofluid mirror changes shape instantly when a magnetic field is applied.

  9. Magnetite - Wikipedia

    en.wikipedia.org/wiki/Magnetite

    This method works with radioactive and carcinogenic particles as well, making it an important cleanup tool in the case of heavy metals introduced into water systems. [79] Another application of magnetic nanoparticles is in the creation of ferrofluids. These are used in several ways.