When used to mean "some," meaning an indefinite number, algunos and unos are usually interchangeable - it doesn't matter which one you use. However, there can be some subtle differences between them. Here is a guide to know where the choice of word might make a difference: Approximations Unos , but not algunos , can be used when making approximations (approximations can be expressed in other ways as well): Tenemos unos mil quinientos discos de música clásica.
Terminal velocity and free fall are two related concepts that tend to get confusing because they depend on whether or not a body is in empty space or in a fluid (e.g., and atmosphere or even water). Take a look at the definitions and equations of the terms, how they are related, and how fast a body falls in free fall or at terminal velocity under different conditions.
Contrary to bogus advertising, the U.S. government does not offer "free or cheap" land to the public. However, the Bureau of Land Management (BLM), an agency of the U.S. Department of the Interior, does occasionally sells parcels of publicly-owned land under certain conditions. The federal government has two major categories which it makes land available for sale to the public: real property and public land.
When two or more materials are mixed, there are different products that may form. One of this is an emulsion: Emulsion Definition An emulsion is a colloid of two or more immiscible liquids where one liquid contains a dispersion of the other liquids. In other words, an emulsion is a special type of mixture made by combining two liquids that normally don't mix.
The scientific name for the mimosa is Albizia julibrissin, sometimes called Persian silktree and a member of the family Leguminosae . The tree is not native to North America or Europe but was brought into western countries from Asia. Its genus is named for the Italian nobleman Filippo Albizzi who introduced it to Europe around the middle of the 18th century as an ornamental.
The French expression impossible n'est pas français is actually a proverb, equivalent to "there's no such thing as can't " or simply "nothing is impossible." In French, you should never say that something is impossible , because, according to the proverb, impossible isn't even a French word. Likewise, in English, you should never say that you "can't" do something because the concept of "can't" doesn't exist.