351
zoology
× 2 |
65
computers
× 2 |
31
healthcare
× 2 |
19
sun
|
320
psychology
× 4 |
60
language
|
29
albert-einstein
|
19
astronomy
|
292
biology
× 3 |
59
history
× 5 |
29
education
|
19
moon
|
283
physics
× 3 |
51
religion
× 2 |
28
nuclear-energy
|
18
electromagnetism
|
202
politics
× 2 |
49
technology
× 2 |
28
safety
|
14
medications
|
186
9-11
|
45
depression
× 2 |
28
software
|
13
alcohol
|
140
elevators
|
43
economics
× 3 |
28
energy
|
13
recreational-drugs
|
140
marketing
|
43
neurology
|
26
physiology
|
13
mortality
|
119
ethology
|
43
logic
|
25
japan
|
12
geography
|
93
medical-science
× 4 |
40
anthropology
|
25
hiroshima-nagasaki
|
12
compact-fluorescent-lamps
|
86
united-states
× 5 |
39
weapons
|
25
world-war-ii
|
11
catholic-church
|
80
masturbation
|
37
ophthalmology
|
21
materials
|
8
nutrition
|
80
sexuality
|
33
psychiatry
× 2 |
21
photography
|
5
flu
|
Rusty
