Mystery Macro- Clue- It has a magnetism to it.
Weekly camera club theme - Real Close Correctly guessed by André De Kesel .
Magnetic goop known as ferrofluid
Ferrofluid: When magnets go nano
For this I used a pipette, ferrofluid , petri dish and lots of paper towels.
Coloured lights.
A ferrofluid is a liquid which becomes highly magnetized in the presence of a magnetic field. The distinctive ‘spikey’ shape of a magnetized ferrofluid is caused by the need to find the most stable shape in order to minimize the total energy of the system, an effect known as the normal-field instability. The fluid is more easily magnetized than the surrounding air, so is drawn out along the magnetic field lines, resulting in the formation of peaks and troughs. However, the extension of the ferrofluid is resisted by gravity and surface tension.
The more complicated explanation is all about nanoparticles. Back in the 1960s, experiments in chemistry showed that ferrofluids could be created and stabilized — a discovery actually made by NASA while searching for ways to control liquid fuel in the weightlessness of space.
Okay, but how does the ferrofluid magically transform into spikes and those crazy hedgehog shapes?
Think of it as a very careful chemical balancing act involving many different forces all hitting a sweet spot. Imagine that you apply a magnetic force to a ferrofluid, say, through a permanent magnet you have lying around
Ref: Tyler Lacoma
Ferrofluids are also the focus of current scientific research and have the potential to be used in many medical applications. In magnetic drug targeting for example, where drugs could be enclosed by ferrofluid and, once injected into the specific body area requiring treatment, a magnetic field could be applied to keep the drugs in this target area. The localization would limit exposure to the rest of the body and enable the dosage level to be decreased, reducing the adverse side effects experienced by the patient
Safety in the use of Ferrofluids and Magnets is recommended.
Do not leave anything else magnetic near your work area and keep mobile phone away
Mystery Macro- Clue- It has a magnetism to it.
Weekly camera club theme - Real Close Correctly guessed by André De Kesel .
Magnetic goop known as ferrofluid
Ferrofluid: When magnets go nano
For this I used a pipette, ferrofluid , petri dish and lots of paper towels.
Coloured lights.
A ferrofluid is a liquid which becomes highly magnetized in the presence of a magnetic field. The distinctive ‘spikey’ shape of a magnetized ferrofluid is caused by the need to find the most stable shape in order to minimize the total energy of the system, an effect known as the normal-field instability. The fluid is more easily magnetized than the surrounding air, so is drawn out along the magnetic field lines, resulting in the formation of peaks and troughs. However, the extension of the ferrofluid is resisted by gravity and surface tension.
The more complicated explanation is all about nanoparticles. Back in the 1960s, experiments in chemistry showed that ferrofluids could be created and stabilized — a discovery actually made by NASA while searching for ways to control liquid fuel in the weightlessness of space.
Okay, but how does the ferrofluid magically transform into spikes and those crazy hedgehog shapes?
Think of it as a very careful chemical balancing act involving many different forces all hitting a sweet spot. Imagine that you apply a magnetic force to a ferrofluid, say, through a permanent magnet you have lying around
Ref: Tyler Lacoma
Ferrofluids are also the focus of current scientific research and have the potential to be used in many medical applications. In magnetic drug targeting for example, where drugs could be enclosed by ferrofluid and, once injected into the specific body area requiring treatment, a magnetic field could be applied to keep the drugs in this target area. The localization would limit exposure to the rest of the body and enable the dosage level to be decreased, reducing the adverse side effects experienced by the patient
Safety in the use of Ferrofluids and Magnets is recommended.
Do not leave anything else magnetic near your work area and keep mobile phone away