ferrofluids
Magnetically responsive suspensions
Ferrofluids are liquids containing nanoscale magnetic particles suspended in a carrier fluid.
When exposed to a magnetic field, they display distinctive spiky patterns as the liquid responds to magnetic forces while surface tension holds it together.
Used in electronics, mechanical engineering, and medicine—sealing rotating shafts, improving speaker performance, or delivering drugs to specific body sites.
The ferrofluid formed dramatic peaks when the magnet approached.
Sharp metal protrusions
- viscosityFluid's flow resistance
- peaksHighest points attained
- deformationChange in shape
- flowUnbroken forward movement
Ultrafine material fragments
- magnetiteMagnetic iron ore
- colloidStable dispersed mixture
- surfactantSurface tension lowering compound
- dispersionScattering across space
suspension · hydrophobic · hydrophilic · stabilization · kerosene · coating · aggregation · sedimentation
Aquatic whiskered mammals
- bearingsAwareness of one's position
- dampersThings that restrain intensity
- loudspeakersAudio output devices
- aerospaceAtmosphere plus outer void
sensors · actuators · biomedical · drug-delivery · cancer-treatment · hyperthermia · cooling · lubrication
Atomic-scale manipulation science
- thermodynamicsScience of heat-energy relationships
- synthesisCombining parts into whole
- spectroscopyStudy of light-matter interaction
- researchSystematic fact-finding effort
Acquiring magnetic polarity
- paramagnetismWeak magnetic susceptibility phenomenon
- diamagneticRepelled by magnetic fields
- alignmentCorrect relative positioning
- attractionPull toward something
spikes
Sharp metal protrusions
- viscosityFluid's flow resistance
- peaksHighest points attained
- deformationChange in shape
flow · shear · levitation · self-assembly
nanoparticles
Ultrafine material fragments
- magnetiteMagnetic iron ore
- colloidStable dispersed mixture
- surfactantSurface tension lowering compound
dispersion · suspension · hydrophobic · hydrophilic · stabilization · kerosene · coating · aggregation · sedimentation
seals
Aquatic whiskered mammals
- bearingsAwareness of one's position
- dampersThings that restrain intensity
- loudspeakersAudio output devices
aerospace · sensors · actuators · biomedical · drug-delivery · cancer-treatment · hyperthermia · cooling · lubrication · spacecraft
nanotechnology
Atomic-scale manipulation science
- thermodynamicsScience of heat-energy relationships
- synthesisCombining parts into whole
- spectroscopyStudy of light-matter interaction
magnetization
Acquiring magnetic polarity
- paramagnetismWeak magnetic susceptibility phenomenon
- diamagneticRepelled by magnetic fields
- alignmentCorrect relative positioning
ferrofluidspermanent magnets
Self-sustaining magnetic materials
bar magnets · neodymium magnets · rare earth magnets · iron bars · lodestone