In our everyday life, it seems that magnetic phenomena are restricted to ferromagnetic materials or electromagnetism caused by electric currents. From a physics point of view, we know that this everyday experience is contrary to the nature of magnetic phenomena. If one regards the magnetic properties of the elements of the periodic table in their natural appearance, there are just a few ferromagnetic (3) but a variety of diamagnetic (34) and paramagnetic (51) substances under standard conditions. Using strong neodymium magnets, it is possible to demonstrate the specific properties of diamagnetism and paramagnetism in the classroom for solids and, unexpectedly, as well for liquids because every piece of matter possesses magnetic properties.

1.
S.
Wida
, “
Neodymium magnets
,”
Sci. Teach.
59
,
28
31
(
Jan.
1992
).
2.
K.
Hameyer
and
R. J. M.
Belmans
, “
Permanent magnet excited brushed DC motors
,”
IEEE T. Ind. Electron.
43
,
247
255
(
April
1996
).
3.
D.
Laumann
, “
Is an apple magnetic: Magnetic response of everyday materials supporting views about the nature of science
,”
Phys. Teach.
55
,
142
145
(
March
2017
).
4.
C. A.
Sawicki
, “
Inexpensive demonstration of the magnetic properties of matter
,”
Phys. Teach.
36
,
553
555
(
Dec.
1998
).
5.
C.
Conery
,
L. F.
Goodrich
, and
T. C.
Stauffer
, “
More diamagnetism demonstrations
,”
Phys. Teach.
41
,
74
75
(
Feb.
2003
).
6.
J. A.
Daffron
, “
A para- and dia-magnetism balance
,”
Phys. Teach.
47
,
395
(
Sept.
2009
).
7.
D.
Laumann
and
S.
Heusler
, “
Determining magnetic susceptibilities of everyday materials using an electronic balance
,”
Am. J. Phys.
85
,
327
332
(
May
2017
).
8.
R.
Simmonds
,
K.
Browning
,
A.
Rinker
,
T.
Gastouniotis
, and
D.
Ion
, “
Demonstrating paramagnetism using liquid nitrogen
,”
Phys. Teach.
32
,
374
375
(
Sept.
1994
).
9.
Z.
Chen
and
E. D.
Dahlberg
, “
Deformation of water by a magnetic field
,”
Phys. Teach.
49
,
144
146
(
March
2011
).
10.
S.
Ueno
and
M.
Iwasaka
, “
Properties of diamagnetic fluid in high gradient magnetic fields
,”
J. Appl. Phys.
75
,
7177
7179
(
May
1994
).
11.
S.
Asai
,
Electromagnetic Processing of Materials
, 1st ed. (
Springer
,
Dordrecht
,
2012
), pp.
116
119
.
12.
N.
Hirota
 et al, “
Rise and fall of surface level of water solutions under high magnetic field
,”
Jpn. J. Appl. Phys.
34
,
L991
L993
(
Aug.
1995
).
13.
P.
Berger
 et al, “
Preparation and properties of an aqueous ferrofluid
,”
J. Chem. Educ.
76
,
943
948
(
July
1999
).
14.
E. S.
Bichsel
,
B.
Wilson
, and
W. J.
Geerts
, “
Magnetic domains of floppy disks and phone cards using toner fluid
,”
Phys. Teach.
40
,
150
153
(
March
2002
).
16.
D. R.
Lide
, ed.,
CRC Handbook of Chemistry and Physics
, 85th ed. (
CRC Press
,
Boca Raton, FL
,
2005
), p.
4/143
148
.
17.
A.
Kucukozer
and
H.
Kucukozer
, “
Differentiating real and virtual images
,”
Phys. Educ.
46
,
656
658
(
Nov.
2011
).
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