"Liquid magnetic flower observation kit" in which liquid moves in three-dimensional form as a spatula

It has a property that it can be sucked into a magnet like a sand iron while it is liquidMagnetic fluid". It is possible to experiment such as using a special material and a magnet to make a dark liquid into a solid thoroughbred "Magnetic fluid flower observation kit(Tax included 1260 yen) "was sold at Amazon, so I decided to actually purchase and play.

◆ Preparation

The package looks something like this.


Besides containers containing ferrofluid, the contents are plastic dish, syringe, magnet and so on.


Since the magnetic fluid is a liquid like dark India ink, we will wear plastic gloves and do experiments so that hands will not get dirty. Also, as there is a possibility that it will splash on the table, it seems good to put kitchen paper and newspaper etc.


◆ Experiment

Collect the magnetic fluid using a dropper.


Pull out 2 milliliters to a petri dish.


You can see how the shape of the liquid changes by bringing the screw with the magnet attached from the back side of the petri dish to the tip.


It is a liquid dropped when the magnet is away ... ....


When the magnet is brought closer to the back surface the surface rises.


Further closer to the magnet, it looks like a spider.


Looking up the same state as follows.

About 5 millimeters When the magnet is in a position apart, the extent that one horn is out like this.


When you gradually bring the magnet closer, the number of nyokinoki and protrusions will increase.




Actually making the magnet close to the magnetic fluid to create a solid with a thorns and move around it can be seen in the following movies.

"Magnetic Fluid Mysterium Observation Kit" in which liquid moves in three-dimensional form as a spatula - YouTube


Experiments with magnets placed on the bottom and the screws standing in the magnetic fluid are as follows.


When I spill it with a dropper ... ....


A whisker of ferrofluid appeared in a state that it looked like floating in the air.


Looking from above it looks like this.


The appearance that the liquid turns into a lump or moves around it is quite impressive and it is recommended because it can be watched without being bored even if you just move or change the size.

Also, if you prepare a lot of magnets and so on in large quantities, the following things are also possible.

Sachiko Kodama, Yasushi Miyajima "Morpho Towers - Two Stand - YouTube