Dubious

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There is a Dubious claim on the use of dBmV in cable television systems, and the use of 75 ohm cable. The use of 75 ohm cable for CATV systems is so widespread that I don't see anything dubious. In days past, it was not so unusual for TV antenna inputs to be balanced 300 ohm twin lead, that is rare. The impedance of a folded half-wave dipole antenna is close to 300 ohms, but CATV only uses coaxial cable. Gah4 (talk) 17:41, 10 October 2016 (UTC)

There is also Dubious related to nuclear hardness. I presume this is related to hardening of missile silos, and not a property of nuclear physics. I can't say much about the dubiousness in this case. Gah4 (talk) 17:41, 10 October 2016 (UTC)

OK, I removed: {{Dubious|date=March 2016|reason=if it's relative to a reference voltage, the impedance should be irrelevant. If it's a power measurement misnamed as a voltage measurement, this should be clearly specified.}} dB is always a relative power measurement, but voltmeters measure voltage. As TV cable is reliably 75 ohms, this isn't a problem. In other cases, it is much less obvious. It seems that audio uses a 600 ohm reference, as far as I know, even when it isn't actually 600 ohms. At audio frequencies, reflections aren't a big problem like they are at RF. If this is still a question, then somewhere else the article should make obvious the meaning of voltage vs. power measurements. Gah4 (talk) 06:29, 13 October 2016 (UTC)

Inflation

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Error when using {{Inflation}}: |index=US-NGDPPC (parameter 1) not a recognized index. 10216

Error when using {{Inflation}}: |index=US-NGDPPC (parameter 1) not a recognized index. 9258

for loop template

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{{for loop|<!-- separator, whitespace is preserved -->|
    call    = template to call
  | pc1n    = name  of the 1st static parameter passed to the called template
  | pc1v    = value of the 1st static parameter passed to the called template
  | pc2n    = name  of the 2nd static parameter passed to the called template
  | pc2v    = value of the 2nd static parameter passed to the called template
  | pc3n    = name  of the 3rd static parameter passed to the called template
  | pc3v    = value of the 3rd static parameter passed to the called template
<!-- More fixed parameters passed to the called template can be inserted as needed -->
  | pv      = parameter name used to pass to the called template to which is
                assigned the variable values with prefix prepended and postfix apended.
  | prefix  = static prefix prepended to each of the variable values
  | postfix = static postfix appended to each of the variable values
  | list of variable values with separator "|", whitespace is stripped
     (empty parameter values work in the regular way, they are ''not'' ignored like undefined ones)
}}


{{User:Gah4/sandbox5}} {{User:Gah4/sandbox5}} {{User:Gah4/sandbox5}} {{User:Gah4/sandbox5}}


1920, 1930, 1940, 1950


Either I don't understand how it works, or it doesn't work right. I tried {{[[Template:#expr|#expr]]}}, that is, {{tl|#expr}} and it didn't come out right. Gah4 (talk) 00:58, 2 November 2016 (UTC)

@Gah4: Where are you using this? Examples always help. But for ref, {{#expr:}} isn't a template, it's a parser function. --Redrose64 (talk) 08:41, 2 November 2016 (UTC)
It was in a talk page, suggesting the use of {{tl|#expr}}. Since it looked like a template, even if it wasn't (which I didn't know), I thought it should parse the same way. I knew about {{tl}} and {{tlx}} but not {{tlc}}. Gah4 (talk) 10:59, 2 November 2016 (UTC)


April Fools Day

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$wgLocaltimezone = {{$wgLocaltimezone}}


{{£time: Y F d H:i:s}}2026 June 19 06:03:29

Timel: 2026 June 19 06:03:29

Today isn't December 1st.

Today is: 061926

Today isn't May 20th, 2019.

{{[[Template:#ifeq:061926|#ifeq:061926]]|052019|Today is May 20th, 2019!|Today isn't May 20th, 2019.}}

{{#ifeq:{{#timel:mdy}}|052019|Today is May 20th, 2019!|Today isn't May 20th, 2019.}}

0619


{{now}} = The current date and time is 19 June 2026 T 06:03 UTC.

{{tl}}

Nuclide2

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55
25
Mn


1
1
H
4
2
He
7
3
Li
9
4
Be
11
5
B
12
6
C
14
7
N
16
8
O
19
9
F
20
10
Ne
23
11
Na
24
12
Mg
27
13
Al
28
14
Si
31
15
P
33
16
S
35
17
Cl
40
18
Ar
39
19
K
40
20
Ca
45
21
Sc
48
22
Ti
51
23
V
52
24
Cr
55
25
Mn
56
26
Fe
59
27
Co
58
28
Ni
63
29
Cu
64
30
Zn
69
31
Ga
74
32
Ge
75
33
As
80
34
Se
79
35
Br
84
36
Kr
85
37
Rb
88
38
Sr
89
39
Y
90
40
Zr
93
41
Nb
98
42
Mo
99
43
Tc
102
44
Ru
103
45
Rh
106
46
Pd
107
47
Ag
114
48
Cd
115
49
In
118
50
Sn
121
51
Sb
130
52
Te
127
53
I
132
54
Xe
133
55
Cs
138
56
Ba
139
57
La
140
58
Ce
141
59
Pr
142
60
Nd
145
61
Pm
152
62
Sm
153
63
Eu
158
64
Gd
159
65
Tb
164
66
Dy
165
67
Ho
166
68
Er
169
69
Tm
174
70
Yb
175
71
Lu
178
72
Hf
181
73
Ta
184
74
W
187
75
Re
192
76
Os
193
77
Ir
195
78
Pt
197
79
Au
202
80
Hg
205
81
Tl
208
82
Pb
209
83
Bi
210
84
Po
210
85
At
222
86
Rn
223
87
Fr
226
88
Ra
227
89
Ac
232
90
Th
231
91
Pa
238
92
U
237
93
Np
244
94
Pu
243
95
Am
247
96
Cm
247
97
Bk
251
98
Cf
252
99
Es
257
100
Fm
258
101
Md
259
102
No
262
103
Lr
261
104
Rf
262
105
Db
266
106
Sg
264
107
Bh
277
108
Hs
268
109
Mt
281
110
Ds
272
111
Rg
285
112
Cn
The element Uut does not exist. 289
114
Fl
The element Uup does not exist. 292
116
Lv
The element Uus does not exist. The element Uuo does not exist. 284
113
Nh
288
115
Mc
294
117
Ts
294
118
Og

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 Error in Template:ProtonsForElement: unknown element Uut. 114 Error in Template:ProtonsForElement: unknown element Uup. 116 Error in Template:ProtonsForElement: unknown element Uus. Error in Template:ProtonsForElement: unknown element Uuo. 113 115 117 118

0 2 4 5 6 6 7 8 10 10 12 12 14 14 16 17 18 22 20 20 24 26 28 28 30 30 32 30 34 34 38 42 42 46 44 48 48 50 50 50 52 56 56 58 58 60 60 66 66 68 70 78 74 78 78 82 82 82 82 82 84 90 90 94 94 98 98 98 100 104 104 106 108 110 112 116 116 117 118 122 124 126 126 126 125 136 136 138 138 142 140 146 144 150 148 151 150 153 153 157 157 157 159 157 157 160 157 169 159 171 161 173 171 175 173 176 177 176 171 173 177 176

Activation Products, Table D1

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Half-lives and decay branching fractions for activation products
NuclideHalf-lifeDecay modebranching fractionSourceNotes
3
1
H
12.312 ± 0.025 yβ-1.0LNHB
10
4
Be
( 1.51 ± 0.06 ) x 106 yβ-1.0ENSDF
14
6
C
( 5.7 ± 0.03 ) x 103 yβ-1.0LNHB
15
6
C
2.449 ± 0.005 sβ-1.0ENSDF
16
7
N
7.13 ± 0.02 sβ-1.0ENSDF
19
8
O
26.88 ± 0.05 sβ-1.0ENSDF
22
11
Na
950.57 ± 0.23 dEC0.1011 ± 0.0002aIAEA-CRP-XG[1]
β-+0.8989 ± 0.0002a
24
11
Na
0.62329 ± 0.00006 dβ-1.0IAEA-CRP-XG
27
12
Mg
9.458 ± 0.012 mβ-1.0ENSDF
26
13
Al
( 7.17 ± 0.24 ) x 105 yEC0.1825 ± 0.0023bLNHB[2]
β-+0.8175 ± 0.0023b
35
16
S
87.32 ± 0.16 dβ-1.0LNHB
36
17
Cl
( 0.01 ± 0.03 ) x 105 yEC0.019 ± 0.001LNHB
β-0.981 ± 0.001
39
18
Ar
269 ± 3 yβ-1.0ENSDF
41
18
Ar
109.61 ± 0.04 mβ-1.0ENSDF
40
19
K
( 4.563 ± 0.013 ) x 1011 dEC0.1086 ± 0.0013aIAEA-CRP-XG[1]
β-0.8914 ± 0.0013a
42
19
K
12.36 ± 0.012 hβ-1.0ENSDF
41
20
Ca
( 1.02 ± 0.07 ) x 105 yEC1.0ENSDF
45
20
Ca
162.61 ± 0.09 dβ-1.0ENSDF
47
21
Sc
3.3492 ± 0.0006 dβ-1.0ENSDF
48
21
Sc
43.67 ± 0.09 hβ-1.0ENSDF
51
24
Cr
27.7009 ± 0.002 dEC1.0IAEA-CRP-XG
54
25
Mn
312.29 ± 0.26 dEC1.0IAEA-CRP-XG
56
25
Mn
0.107449 ± 0.000019 dβ-1.0IAEA-CRP-XG
55
26
Fe
( 1.0027 ± 0.0023 ) x 103 dEC1.0IAEA-CRP-XG
59
26
Fe
44.494 ± 0.013 dβ-1.0IAEA-CRP-XG
57
27
Co
271.8 ± 0.05 dEC1.0IAEA-CRP-XG
58
27
Co
70.86 ± 0.06 dβ-+0.15 ± 0.0020aIAEA-CRP-XG[1]
EC0.85 ± 0.0020a
60
27
Co
( 1.92523 ± 0.00027 ) x 103 dβ-1.0IAEA-CRP-XG
59
28
Ni
( 7.6 ± 0.5 ) x 104 yEC1.0ENSDF
63
28
Ni
98.7 ± 2.4 yβ-1.0LNHB
65
28
Ni
2.51719 ± 0.00026 hβ-1.0ENSDF
64
29
Cu
0.52929 ± 0.00018 dβ-+0.179 ± 0.002aIAEA-CRP-XG[1]
β-0.39 ± 0.003a
EC0.431 ± 0.005a
66
29
Cu
5.12 ± 0.014 mβ-1.0ENSDF
65
30
Zn
243.86 ± 0.2 dβ-+0.0142 ± 0.0001aIAEA-CRP-XG[1]
EC0.9858 ± 0.0001a
93m
41
Nb
( 5.73 ± 0.22 ) x 103 dIT1.0IAEA-CRP-XG
93
42
Mo
( 4.0 ± 0.8 ) x 103 yEC1.0ENSDF
99m
43
Tc
0.250281 ± 0.000022 dβ-0.000037 ± 0.000006aIAEA-CRP-XG[1]
IT0.999963 ± 0.000006a
110m
47
Ag
249.85 ± 0.1 dIT0.0136 ± 0.0008aIAEA-CRP-XG[1]
β-0.9864 ± 0.0008a
115m
49
In
4.486 ± 0.004 hβ-0.05 ± 0.008ENSDF
IT0.95 ± 0.008
126
53
I
12.93 ± 0.05 dβ-0.473 ± 0.006ENSDF
EC0.527 ± 0.006
175
72
Hf
70 ± 2 dEC1.0ENSDF
181
72
Hf
42.39 ± 0.06 dβ-1.0ENSDF
182
73
Ta
114.43 ± 0.04 dβ-1.0ENSDF
181
74
W
121.2 ± 0.2 dEC1.0ENSDF
185
74
W
75.1 ± 0.3 dβ-1.0ENSDF
187
74
W
23.72 ± 0.06 hβ-1.0ENSDF
198
79
Au
2.695 ± 0.0007 dβ-1.0IAEA-CRP-XG
197
80
Hg
64.14 ± 0.05 hEC1.0ENSDF
203
80
Hg
46.594 ± 0.012 dβ-1.0IAEA-CRP-XG