From Wikipedia, the free encyclopedia


Military and ranks

US Enlisted Ranks

Periodic table

Periodic table

SI prefixes

Prefix Base 10 Decimal Adoption
[nb 1]
Name Symbol
quetta Q 1030 1000000000000000000000000000000 2022 [1]
ronna R 1027 1000000000000000000000000000
yotta Y 1024 1000000000000000000000000 1991
zetta Z 1021 1000000000000000000000
exa E 1018 1000000000000000000 1975 [2]
peta P 1015 1000000000000000
tera T 1012 1000000000000 1960
giga G 109 1000000000
mega M 106 1000000 1873
kilo k 103 1000 1795
hecto h 102 100
deca da 101 10
100 1
deci d 10−1 0.1 1795
centi c 10−2 0.01
milli m 10−3 0.001
micro μ 10−6 0.000001 1873
nano n 10−9 0.000000001 1960
pico p 10−12 0.000000000001
femto f 10−15 0.000000000000001 1964
atto a 10−18 0.000000000000000001
zepto z 10−21 0.000000000000000000001 1991
yocto y 10−24 0.000000000000000000000001
ronto r 10−27 0.000000000000000000000000001 2022 [1]
quecto q 10−30 0.000000000000000000000000000001
Notes
  1. ^ Prefixes adopted before 1960 already existed before SI. The introduction of the CGS system was in 1873.

UK dialling codes and postcodes

International country dialling codes

Car number plates

ISO country codes

Aircraft and ships

Two-way radio

Amateur radio

Maritime flags

Standard chart of "International Flags and Pennants" of the International Code of Signals (also known as "Pub. 102")

International maritime signal flags

International Code of Signals

Flag semaphore

NATO radio bands

NATO LETTER BAND DESIGNATION[ citation needed] BROADCASTING
BAND
DESIGNATION

[ citation needed]
NEW[ when?] NOMENCLATURE OLD[ when?] NOMENCLATURE
BAND FREQUENCY ( MHz) BAND FREQUENCY (MHz)
A 0 – 250 I 100 – 150 Band I
47 – 68 MHz (TV)
Band II
87.5 – 108 MHz (FM)
G 150 – 225 Band III
174 – 230 MHz (TV)
B 250 – 500 P 225 – 390
C 500 – 1 000 L 390 – 1 550 Band IV
470 – 582 MHz (TV)
Band V
582 – 862 MHz (TV)
D 1 000 – 2 000
S 1 550 – 3 900
E 2 000 – 3 000
F 3 000 – 4 000
G 4 000 – 6 000 C 3 900 – 6 200
H 6 000 – 8 000 X 6 200 – 10 900
I 8 000 – 10 000
J 10 000 – 20 000 Ku 10 900 – 20 000
K 20 000 – 40 000 Ka 20 000 – 36 000
L 40 000 – 60 000 Q 36 000 – 46 000
V 46 000 – 56 000
M 60 000 – 100 000 W 56 000 – 100 000
US- MILITARY / SACLANT[ citation needed]
N 100 000 – 200 000
O 100 000 – 200 000


Plugs and sockets

Batteries

AWG wire sizes

IP Code for dust and water proterction

Roof structure

Other

Police

United Kingdom police ranks (up to chief superintendent)
Rank Constable Sergeant Inspector Chief inspector Superintendent Chief superintendent
Insignia UK Police Constable Epaulette UK Patrol Sergeant Epaulette UK Police Inspector Epaulette UK Police Chief Inspector Epaulette UK Police Superintendent Epaulette UK Police Chief Superintendent Epaulette
United Kingdom police ranks (chief officers)
Rank Assistant chief constable Deputy chief constable Chief constable
Insignia UK Police Assistant Chief Constable Epaulette UK Police Deputy Chief Constable Epaulette UK Police Chief Constable Epaulette
City of London Police rank Commander Assistant commissioner Commissioner
Insignia City of London Commander epaulette City of London Assistant Commissioner epaulette City of London Commissioner epaulette
Metropolitan Police rank Commander Deputy Assistant Commissioner Assistant commissioner Deputy commissioner Commissioner
Insignia Metropolitan Police Commander epaulette Metropolitan Police Deputy Assistant Commissioner of the Metropolis epaulette Met Assistant Commissioner Epaulette Met Dep Commissioner Epaulette Met Commissioner Eppaulette

British coronet rankings

Order medals

St John's Ambulance

Police medals

Special:PrefixIndex/User:Oosoom
  1. ^ a b "On the extension of the range of SI prefixes". 18 November 2022. Retrieved 5 February 2023.
  2. ^ "Metric (SI) Prefixes". NIST.
From Wikipedia, the free encyclopedia


Military and ranks

US Enlisted Ranks

Periodic table

Periodic table

SI prefixes

Prefix Base 10 Decimal Adoption
[nb 1]
Name Symbol
quetta Q 1030 1000000000000000000000000000000 2022 [1]
ronna R 1027 1000000000000000000000000000
yotta Y 1024 1000000000000000000000000 1991
zetta Z 1021 1000000000000000000000
exa E 1018 1000000000000000000 1975 [2]
peta P 1015 1000000000000000
tera T 1012 1000000000000 1960
giga G 109 1000000000
mega M 106 1000000 1873
kilo k 103 1000 1795
hecto h 102 100
deca da 101 10
100 1
deci d 10−1 0.1 1795
centi c 10−2 0.01
milli m 10−3 0.001
micro μ 10−6 0.000001 1873
nano n 10−9 0.000000001 1960
pico p 10−12 0.000000000001
femto f 10−15 0.000000000000001 1964
atto a 10−18 0.000000000000000001
zepto z 10−21 0.000000000000000000001 1991
yocto y 10−24 0.000000000000000000000001
ronto r 10−27 0.000000000000000000000000001 2022 [1]
quecto q 10−30 0.000000000000000000000000000001
Notes
  1. ^ Prefixes adopted before 1960 already existed before SI. The introduction of the CGS system was in 1873.

UK dialling codes and postcodes

International country dialling codes

Car number plates

ISO country codes

Aircraft and ships

Two-way radio

Amateur radio

Maritime flags

Standard chart of "International Flags and Pennants" of the International Code of Signals (also known as "Pub. 102")

International maritime signal flags

International Code of Signals

Flag semaphore

NATO radio bands

NATO LETTER BAND DESIGNATION[ citation needed] BROADCASTING
BAND
DESIGNATION

[ citation needed]
NEW[ when?] NOMENCLATURE OLD[ when?] NOMENCLATURE
BAND FREQUENCY ( MHz) BAND FREQUENCY (MHz)
A 0 – 250 I 100 – 150 Band I
47 – 68 MHz (TV)
Band II
87.5 – 108 MHz (FM)
G 150 – 225 Band III
174 – 230 MHz (TV)
B 250 – 500 P 225 – 390
C 500 – 1 000 L 390 – 1 550 Band IV
470 – 582 MHz (TV)
Band V
582 – 862 MHz (TV)
D 1 000 – 2 000
S 1 550 – 3 900
E 2 000 – 3 000
F 3 000 – 4 000
G 4 000 – 6 000 C 3 900 – 6 200
H 6 000 – 8 000 X 6 200 – 10 900
I 8 000 – 10 000
J 10 000 – 20 000 Ku 10 900 – 20 000
K 20 000 – 40 000 Ka 20 000 – 36 000
L 40 000 – 60 000 Q 36 000 – 46 000
V 46 000 – 56 000
M 60 000 – 100 000 W 56 000 – 100 000
US- MILITARY / SACLANT[ citation needed]
N 100 000 – 200 000
O 100 000 – 200 000


Plugs and sockets

Batteries

AWG wire sizes

IP Code for dust and water proterction

Roof structure

Other

Police

United Kingdom police ranks (up to chief superintendent)
Rank Constable Sergeant Inspector Chief inspector Superintendent Chief superintendent
Insignia UK Police Constable Epaulette UK Patrol Sergeant Epaulette UK Police Inspector Epaulette UK Police Chief Inspector Epaulette UK Police Superintendent Epaulette UK Police Chief Superintendent Epaulette
United Kingdom police ranks (chief officers)
Rank Assistant chief constable Deputy chief constable Chief constable
Insignia UK Police Assistant Chief Constable Epaulette UK Police Deputy Chief Constable Epaulette UK Police Chief Constable Epaulette
City of London Police rank Commander Assistant commissioner Commissioner
Insignia City of London Commander epaulette City of London Assistant Commissioner epaulette City of London Commissioner epaulette
Metropolitan Police rank Commander Deputy Assistant Commissioner Assistant commissioner Deputy commissioner Commissioner
Insignia Metropolitan Police Commander epaulette Metropolitan Police Deputy Assistant Commissioner of the Metropolis epaulette Met Assistant Commissioner Epaulette Met Dep Commissioner Epaulette Met Commissioner Eppaulette

British coronet rankings

Order medals

St John's Ambulance

Police medals

Special:PrefixIndex/User:Oosoom
  1. ^ a b "On the extension of the range of SI prefixes". 18 November 2022. Retrieved 5 February 2023.
  2. ^ "Metric (SI) Prefixes". NIST.

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