Jennie Pham
11 September 2016 Mr. McMahon P.5
Oil and Magnets: Opposites Attract
Our money is being drained from cleaning up these disasters, even if human developed techniques are proven inefficient and lack the ability to …show more content…
Magnetism is a characteristic of electromagnetism, in fact, it is the force that allows objects with magnetic fields to attract or repeal other objects. Electromagnetism being the force that directs how atoms and molecules interact. Additionally, it embodies as electricity or magnetism. Ultimately, it is the force that drives most of the world, for instance it is the force that allows the light to rise or for computers to operate and so much more.
Obviously, magnetism is the force in magnets and it allows things to stick onto fridge doors and allow planes to function, but how does that work? Magnetism governs objects and how they attract or repeal to others using magnetic fields, which are rotating electric charges around an atom. The magnetic field’s rotation or the motion of electrically charged particles decide the magnetism of the object. Every magnetic field have north and south poles, in fact like poles repeal, meaning they push away from each other and opposite poles attract, meaning they pull …show more content…
For example, ferrofluids is a fluid with the properties of a solid because it is magnetic and the properties of a liquid. In fact, ferrofluids were originally invented in the 1960s because the NASA Research Center wanted different methods of bringing liquids into space. Ferrofluids were liquids with tiny particles of nanoparticle magnetite particles in it. The nanoparticles were on average 10mn (nanometer) or smaller so they could suspend inside of the liquid. Additionally, the nanoparticles are highly attracted to each other due to increased surface area, so they normally run into each other and stick. However, they have a surface coating that allows magnetite to lose properties and bunch together. The surfactant and the nanoparticle are considered ligands, and ligands have an attraction to carrier fluids, so it pulls the carrier fluid with the nanoparticle when there is a magnetic