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Index (J)
JA - JC
JD - JF
JG - JJ
JK - JN
JO - JR
JS - JV
JW - JZ
Moment of truth
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The Sun, with a diameter of 1,392,000 km, is made of 94% hydrogen atoms. |
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A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
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U
V
W
X
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JD - JF
jelium Phys.
An imaginary non-interacting atom, no matter how close they are. It is usually introduced in the development of the theoretical aspect
of solid state physics. For example, the jelium model for electrons in solids. The model is used to describe many-body effects by considering
purely Coulombic electronic interactions, with an inert positive background charge.
jet Chem., Min.
A variety of dense black coal that can be cut and polished and is used for jewellery and ornaments. Jet generally has a homogeneous appearance but sometimes it exhibits brown streak
with a woody appearance.
jeweller's rouge Min.
Red powdered hematite (Fe2O3). It is a mild abrasive, used in metal cleaners and in polishing of glass and gems.
JD - JF
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
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