Femtometre
The femtometre (American spelling femtometer, symbol fmAncient Greek: μέτρον, metrοn, "unit of measurement") is an SI unit of length equal to 10−15metres. This distance can also be called fermi and was so named in honour of physicist Enrico Fermi, as it is a typical length-scale of nuclear physics.
Definition and equivalents
1000 attometres = 1 femtometre = 1 fermi = 0.001 picometre = 1.0 × 10−15metres
1,000,000 femtometres = 10 Ångström = 1 nanometre.
For example, the charge radius of a proton is approximately 0.84–0.87 femtometres while the radius of a gold nucleus is approximately 8.45 femtometres.
1 barn = 100 fm2
History
The femtometre was adopted by the 11th Conférence Générale des Poids et Mesures, and added to SI in 1964.
The fermi is named after the Italian physicist Enrico Fermi (1901–1954), one of the founders of nuclear physics. The term was coined by Robert Hofstadter in a 1956 paper published in Reviews of Modern Physics entitled "Electron Scattering and Nuclear Structure". The term is widely used by nuclear and particle physicists. When Hofstadter was awarded the 1961 Nobel Prize in Physics, it subsequently appears in the text of his 1961 Nobel Lecture, "The electron-scattering method and its application to the structure of nuclei and nucleons" (December 11, 1961).
Unité
Unité is a mobile network operator in Moldova. Working in CDMA, UMTS and LTE standards.
General information
Communication standard: Unité has a license to work in CDMA standard on frequency of 450 MHz as well as in UMTS standard on frequencies of 2100 MHz and 900 MHz.
Numbering resources:
Unité network codes are:
Internationally they have the form:
Network code:
For CDMA standard: 259 03, where 259 — Mobile Country Code (MCC) for Moldova, and 03 — Mobile Network Code (MNC) for Unité network.
For UMTS standard: 259 05, where 259 — Mobile Country Code (MCC) for Moldova, and 05 — Mobile Network Code (MNC) for Unité network.
History
Unité began its activity on March 1, 2007 as CDMA operator. On April 1, 2010 Unité launched its own 3.5G network.
Mobile Internet
Unité offers mobile internet services via CDMA standard under the brand of "Connect" with speeds up to 2.4 Mbit/s and via 3.5G under the brand of "3G Connect" with speeds up to 14.4 Mbit/s
Ownership
Moldtelecom is 100% shareholder of the operator.
Unit (housing)
A unit is a measure of housing equivalent to the living quarters of one household.
In common speech in Australia and New Zealand, the word "unit", when referring to housing, usually means either: an apartment, (where a group of apartments is contained in one or more multi-storied buildings (an 'apartment block')); or a villa unit or home unit, where a group of dwellings is in one or more single storey buildings, usually arranged around a driveway. In this usage, a unit is a self-contained suite of rooms, usually of modest scale, which may be attached, semi-detached or detached, within a group of similar dwellings. Used in the Australian and New Zealand urban planning and development industry, unit is also a synonym for dwelling, as in, "This development has 22 units per hectare".
A single room unit is more commonly referred to as a studio flat or bedsitter, otherwise known as a Single Room Occupancy or SRO in North America. It can be hard to discern precisely what attributes distinguish some multi-dwelling developments as units from those referred to as flats or apartments, though everyday usage suggests there is a class dimension to the term.
Unit of alcohol
Units of alcohol are used in the United Kingdom (UK) as a measure to quantify the actual alcoholic content within a given volume of an alcoholic beverage, in order to provide guidance on total alcohol consumption.
A number of other countries (including Australia, Canada, New Zealand, and the US) use the concept of a "standard drink", the definition of which varies from country to country, for the same purpose. "Standard drinks" were referred to in the first UK guidelines (1984) that published "safe limits" for drinking, but these were replaced by references to "alcohol units" in the 1987 guidelines and the latter term has been used in all subsequent UK guidance.
One unit of alcohol (UK) is defined as 10 millilitres (8 grams) of pure alcohol. Typical drinks (i.e. typical quantities or servings of common alcoholic beverages) may contain 1–3 units of alcohol.
Containers of alcoholic beverages sold directly to UK consumers are normally labelled to indicate the number of units of alcohol in a typical serving of the beverage (optional) and in the full container (can or bottle), as well as information about responsible drinking. Additionally, the advent of smartphones has led to the creation of apps which report the number of units contained in an alcoholic drink.
