buoyancy
101Doing It Right — DIR diver Doing It Right (DIR) is a holistic approach to scuba diving. According to the DIR approach fundamental skills, teamwork, environmental awareness, and the use of a highly optimized/streamlined (i.e. minimalistic) equipment configuration… …
102плавучесть — 3.10 плавучесть: Силы, действующие на частично погруженное в воду тело, т. е. свойство погруженного в жидкость тела оставаться в равновесии на плаву, не погружаясь полностью в воду. Источник …
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103Weight — This article is about the physical concept. For other uses, see Weight (disambiguation). A spring scale measures the weight of an object (according to the operational definition) …
104Relative density — Relative density, sometimes called specific density, is the ratio of the density of a substance to the density of a given reference material. If a substance s relative density is less than one then it is less dense than the reference; if greater… …
105Amphibious vehicle — An amphibious vehicle (or simply amphibian), is a vehicle or craft, that is a means of transport, viable on land as well as on water just like an amphibian.This definition applies equally to any land and water transport, small or large, powered… …
106Heat transfer — is a discipline of thermal engineering that concerns the exchange of thermal energy from one physical system to another. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation, and phase change …
107Terminal velocity — A free falling object achieves its terminal velocity when the downward force of gravity ( Fg )equals the upward force of drag ( Fd ). This causes the net force on the object to be zero, resulting in an acceleration of zero. Mathematically an… …
108Enterprise (dinghy) — The Enterprise is a two man sloop rigged hiking sailing dinghy with distinctive blue sails. Despite being one of the older classes of dinghies, it remains popular in the United Kingdom and about a dozen other countries, and is used for both… …
109Diving shot — Diagram of a diving shot upcurrent of a dive site A diving shot is an item of diving equipment consisting of a weight, a line and a buoy. The weight is dropped on the dive site. The line connects the weight and the buoy and is used by divers to… …
110Orbital airship — Space blimp redirects here. For airships used in a role similar to satellites, see stratospheric airship. The orbital airship, also called the space blimp, is a proposed space transportation system that carries payloads to and from low Earth… …
