Drag (physics)In fluid dynamics, drag (sometimes called fluid resistance) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. This can exist between two fluid layers (or surfaces) or between a fluid and a solid surface. Unlike other resistive forces, such as dry friction, which are nearly independent of velocity, the drag force depends on velocity. Drag force is proportional to the velocity for low-speed flow and the squared velocity for high speed flow, where the distinction between low and high speed is measured by the Reynolds number.
Air conditioningAir conditioning, often abbreviated as A/C (US), AC (US), or air con (UK), is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as "comfort cooling") and in some cases also strictly controlling the humidity of internal air. Air conditioning can be achieved using a mechanical air conditioner or alternatively a variety of other methods, including passive cooling or ventilative cooling.
Queer theoryQueer theory is the perspective that questions the perception that cisgender and heterosexual identities are in any sense “standard.” It revisits such fields as literary analysis, philosophy, and politics with a “queer” approach. Queer theory is a field of post-structuralism that emerged in the early 1990s out of queer studies (often, formerly, gay and lesbian studies) and women's studies.
SchematicA schematic, or schematic diagram, is a designed representation of the elements of a system using abstract, graphic symbols rather than realistic pictures. A schematic usually omits all details that are not relevant to the key information the schematic is intended to convey, and may include oversimplified elements in order to make this essential meaning easier to grasp, as well as additional organization of the information. For example, a subway map intended for passengers may represent a subway station with a dot.
Third-wave feminismThird-wave feminism is a feminist movement that began in the early 1990s, prominent in the decades prior to the fourth wave. Grounded in the civil-rights advances of the second wave, Gen X third-wave feminists born in the 1960s and 1970s embraced diversity and individualism in women, and sought to redefine what it meant to be a feminist. The third wave saw the emergence of new feminist currents and theories, such as intersectionality, sex positivity, vegetarian ecofeminism, transfeminism, and postmodern feminism.
