 | Look up tether in Wiktionary, the free dictionary. |
A tether is a cord, fixture, or flexible attachment that secures something movable to something else.
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Tether may also refer to:
| Look up tether in Wiktionary, the free dictionary. |
A tether is a cord, fixture, or flexible attachment that secures something movable to something else.
Tether may also refer to:
POS, Pos or PoS may refer to:
A momentum exchange tether is a kind of space tether that could theoretically be used as a launch system, or to change spacecraft orbits. Momentum exchange tethers create a controlled force on the end-masses of the system due to the pseudo-force known as centrifugal force. While the tether system rotates, the objects on either end of the tether will experience continuous acceleration; the magnitude of the acceleration depends on the length of the tether and the rotation rate. Momentum exchange occurs when an end body is released during the rotation. The transfer of momentum to the released object will cause the rotating tether to lose energy, and thus lose velocity and altitude. However, using electrodynamic tether thrusting, or ion propulsion the system can then re-boost itself with little or no expenditure of consumable reaction mass.
Gravity-gradient stabilization is a method of stabilizing artificial satellites or space tethers in a fixed orientation using only the orbited body's mass distribution and gravitational field. The main advantage over using active stabilization with propellants, gyroscopes or reaction wheels is the low use of power and resources.
A tether is a cord, fixture, or flexible attachment that anchors something movable to a reference point which may be fixed or moving. There are a number of applications for tethers: balloons, kites, tethered wind-energy conversion systems, anchors, tethered water-flow energy conversion systems, towing, animal constraint, spaceflight, and power-kiting. Tethering is also used to prevent the theft of a computer at a school or library.
Tethering, or phone-as-modem (PAM), is the sharing of a mobile device's Internet connection with other connected computers. Connection of a mobile device with other devices can be done over wireless LAN (Wi-Fi), over Bluetooth or by physical connection using a cable, for example through USB.
Tips may refer to:
Unlock, unlocking and unlockable may refer to:
Non-rocket spacelaunch refers to concepts for launch into space where much of the speed and altitude needed to achieve orbit is provided by a propulsion technique that is not subject to the limits of the rocket equation. A number of alternatives to rockets have been proposed. In some systems, such as a combination launch system, skyhook, rocket sled launch, rockoon, or air launch, a portion of the total delta-v may be provided, either directly or indirectly, by using rocket propulsion.
Jailbreaking refers to privilege escalation on an Apple device to remove software restrictions imposed by Apple on iOS, iPadOS, tvOS, watchOS, bridgeOS and audioOS operating systems. Typically it is done through a series of kernel patches. A jailbroken device permits root access within the operating system and provides the opportunity to install software not available through the iOS App Store. Different devices and versions are exploited with a variety of tools. Apple views jailbreaking as a violation of the End-user license agreement, and strongly cautions device owners from attempting to achieve root access through exploitation of vulnerabilities.
Untethered is any technique that facilitates an action of a technical device without a direct control.
Attitude control is the process of controlling the orientation of an aerospace vehicle with respect to an inertial frame of reference or another entity such as the celestial sphere, certain fields, and nearby objects, etc.
A number of space tethers have been deployed in space missions. Tether satellites can be used for various purposes including research into tether propulsion, tidal stabilisation and orbital plasma dynamics.
Space tethers are long cables which can be used for propulsion, momentum exchange, stabilization and attitude control, or maintaining the relative positions of the components of a large dispersed satellite/spacecraft sensor system. Depending on the mission objectives and altitude, spaceflight using this form of spacecraft propulsion is theorized to be significantly less expensive than spaceflight using rocket engines.
A cryptocurrency, crypto-currency, or crypto is a digital asset designed to work as a medium of exchange wherein individual coin ownership records are stored in a ledger existing in a form of a computerized database using strong cryptography to secure transaction records, to control the creation of additional coins, and to verify the transfer of coin ownership. Cryptocurrency does not exist in physical form and is typically not issued by a central authority. Cryptocurrencies typically use decentralized control as opposed to a central bank digital currency (CBDC). When a cryptocurrency is minted or created prior to issuance or issued by a single issuer, it is generally considered centralized. When implemented with decentralized control, each cryptocurrency works through distributed ledger technology, typically a blockchain, that serves as a public financial transaction database.
Dogecoin is a cryptocurrency created by software engineers Billy Markus and Jackson Palmer, who decided to create a payment system as a joke, making fun of the wild speculation in cryptocurrencies at the time. Despite its satirical nature, some consider it a legitimate investment prospect. Dogecoin features the face of the Shiba Inu dog from the "Doge" meme as its logo and namesake. It was introduced on December 6, 2013, and quickly developed its own online community, reaching a market capitalization of US$85,314,347,523 on May 5, 2021.
Bitfinex is a Hong Kong-based cryptocurrency exchange owned and operated by iFinex Inc., which is headquartered in Hong Kong and registered in the British Virgin Islands. Their customers' money has been stolen or lost in several incidents, and they have been unable to secure normal banking relationships.
Tether is a controversial cryptocurrency with tokens issued by Tether Limited, which in turn is controlled by the owners of Bitfinex. Tether Limited formerly falsely claimed that each token was backed by one United States dollar, but on 14 March 2019 changed the backing to include loans to affiliate companies. The Bitfinex exchange was the subject of a lawsuit by the New York Attorney General of using Tether's funds to cover up $850 million in funds missing since mid-2018. The investigation found that iFinex — the operator of Bitfinex and Tether — made false statements about the backing of the Tether and about the movement of hundreds of millions of dollars between the two companies to cover up the truth about massive losses by Bitfinex. According to the New York Attorney General, "Tether’s claims that its virtual currency was fully backed by U.S. dollars at all times was a lie".
USDT may refer to:
Stablecoins are cryptocurrencies where the price is designed to be pegged to a cryptocurrency, fiat money, or to exchange-traded commodities.