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Geocacher
Geocaching (, ) is an outdoor recreational activity, in which participants use a Global Positioning System (GPS) receiver or mobile device and other navigational techniques to hide and seek containers, called ''geocaches'' or ''caches'', at specific locations marked by coordinates all over the world. The first geocache was placed in 2000, and by 2023 there were over 3 million active caches worldwide. Geocaching can be considered a real-world, outdoor treasure hunting game. A typical cache is a small waterproof container containing a logbook and sometimes a pen or pencil. The ''geocacher'' signs the log with their established code name/username and dates it, in order to prove that they found the cache. After signing the log, the cache must be placed back exactly where the person found it. Larger containers such as plastic storage containers (Tupperware or similar) or ammo boxes can also contain items for trading, such as toys or trinkets, usually of more sentimental worth th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munzee
Munzee is a freemium scavenger hunt game where QR codes have to be found at different places in the real world. The game is similar to geocaching but uses QR code technology, in addition to device GPS location, to prove the find instead of a logbook. Launched in McKinney, Texas in 2011, the game caught on first in Germany, along with California and Michigan. It is now played in more than 188 countries around the world, and there is at least one physical Munzee deployed on every continent, including Antarctica. The QR codes are placed by players at places of interest and are often printed on weatherproof stickers. Previously, the places could also be marked by a NFC tag, however this functionality was removed in 2018. These stickers are called Munzees. Both the finding and the hiding players receive points for deploying and finding Munzees. The QR codes on the Munzees are read by means of a smartphone app for iOS or Android. The coordinates of the Munzees as well as the data of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trackable
A Travel Bug is a Dog tag (military)#Non-military use, dog tag used in Geocaching. Produced by Groundspeak, the bugs can be moved from cache to cache, with unique tracking numbers allowing their movements to be tracked through the company's geocaching website. Some tags are fastened to an object, known as a "hitchhiker", before they are released into a cache. Travel bugs have been used as advertising to promote Jeep or to increase diabetes awareness. A free service known as Geokrety is also available but this is not affiliated to Groundspeak. Description A travel bug is an item which is trackable which looks similar to a dog tag. The tag is stamped with a tracking number and the Geocaching.com website address. A travel bug can be attached to another item by use of the chain on the travel bug if required, examples of such items include teddy bears, toy cars, or golf balls.#marsh87, Marsh (2011): p. 87 These attached items are called "hitchhikers". During the registration of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Location Of The First Geocache, East Of Portland
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar day) that is synchronized to its orbital period (Lunar month#Synodic month, lunar month) of 29.5 Earth days. This is the product of Earth's gravitation having tidal forces, tidally pulled on the Moon until one part of it stopped rotating away from the near side of the Moon, near side, making always the same lunar surface face Earth. Conversley, the gravitational pull of the Moon, on Earth, is the main driver of Earth's tides. In geophysical definition of planet, geophysical terms, the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter is , roughly one-quarter of Earth's (about as wide as the contiguous United States). Within the Solar System, it is the List of Solar System objects by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawn Mower
A lawn mower (also known as a grass cutter or simply mower, also often spelled lawnmower) is a device utilizing one or more revolving blades (or a reel) to cut a lawn, grass surface to an even height. The height of the cut grass may be fixed by the mower's design but generally is adjustable by the operator, typically by a single master lever or by a mechanism on each of the machine's wheels. The blades may be powered by manual force, with wheels mechanically connected to the cutting blades so that the blades spin when the mower is pushed forward, or the machine may have a Battery (electricity), battery-powered or AC power plugs and sockets, plug-in electric motor. The most common self-contained power source for lawn mowers is a small four-stroke engine, 4-stroke (typically Single-cylinder engine, one-cylinder) internal combustion engine. Smaller mowers often lack any form of self-propulsion, requiring human power to move over a surface; "walk-behind" mowers are self-propelled, re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slingshot
A slingshot or catapult is a small hand-powered projectile weapon. The classic form consists of a Y-shaped frame, with two tubes or strips made from either a natural rubber or synthetic elastic material. These are attached to the upper two ends. The other ends of the strips lead back to a pouch that holds the projectile. One hand holds the frame, while the other hand grasps the pocket and draws it back to the desired extent to provide power for the projectile—up to a full span of the arms with sufficiently long bands. Other names include catapult (United Kingdom), peashooter (United States), gulel (India), (South Africa), or ging, shanghai, pachoonga (Australia and New Zealand) Use and history Slingshots depend on strong Elasticity (physics), elastic materials for their projectile firepower, typically vulcanization, vulcanized natural rubber or the equivalent such as silicone rubber tubing, and thus date no earlier than the invention of vulcanized rubber by Charles Goodyear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baked Beans
Baked beans is a Dish (food), dish traditionally containing white Phaseolus vulgaris, common beans that are parboiling, parboiled and then baking, baked in sauce at low temperature for a lengthy period. Canned baked beans are not baked, but are cooked through a steam process. Canned baked beans are commonly made using navy beans, which originated in Peru. In New England, various Indigenous peoples of the Americas, indigenous legumes are used, such as Jacob's cattle, soldier beans, yellow-eyed beans, and navy beans (also known as haricot beans). Beans in a brown sugar, sugar, or corn syrup sauce (with or without tomatoes) are widely available in many countries. Kraft Heinz is the largest manufacturer of canned baked beans in Europe, while Bush Brothers and Company, Bush Brothers is the largest producer in the United States. After the American Revolutionary War, Fourth of July, Independence Day celebrations often included baked beans. Canning, Canned baked beans are used as a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC News
BBC News is an operational business division of the British Broadcasting Corporation (BBC) responsible for the gathering and broadcasting of news and current affairs in the UK and around the world. The department is the world's largest broadcast news organisation and generates about 120 hours of radio and television output each day, as well as online news coverage. The service has over 5,500 journalists working across its output including in 50 foreign news bureaus where more than 250 foreign correspondents are stationed. Deborah Turness has been the CEO of news and current affairs since September 2022. In 2019, it was reported in an Ofcom report that the BBC spent £136m on news during the period April 2018 to March 2019. BBC News' domestic, global and online news divisions are housed within the largest live newsroom in Europe, in Broadcasting House in central London. Parliamentary coverage is produced and broadcast from studios in London. Through BBC English Regions, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newsgroup
A Usenet newsgroup is a repository usually within the Usenet system for messages posted from users in different locations using the Internet. They are not only discussion groups or conversations, but also a repository to publish articles, start developing tasks like creating Linux, sustain mailing lists and file uploading. That’s thank to the protocol that poses no article size limit, but are to the providers to decide. In the late 1980s, Usenet articles were often limited by the providers to 60,000 characters, but in time, Usenet groups have been split into two types: ''text'' for mainly discussions, conversations, articles, limited by most providers to about 32,000 characters, and ''binary'' for file transfer, with providers setting limits ranging from less than 1 MB to about 4 MB. Newsgroups are technically distinct from, but functionally similar to, discussion forums on the World Wide Web. Newsreader software is used to read the content of newsgroups. Before the adoption ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usenet
Usenet (), a portmanteau of User's Network, is a worldwide distributed discussion system available on computers. It was developed from the general-purpose UUCP, Unix-to-Unix Copy (UUCP) dial-up network architecture. Tom Truscott and Jim Ellis (computing), Jim Ellis conceived the idea in 1979, and it was established in 1980.''From Usenet to CoWebs: interacting with social information spaces'', Christopher Lueg, Danyel Fisher, Springer (2003), , Users read and post messages (called ''articles'' or ''posts'', and collectively termed ''news'') to one or more topic categories, known as Usenet newsgroup, newsgroups. Usenet resembles a bulletin board system (BBS) in many respects and is the precursor to the Internet forums that have become widely used. Discussions are Threaded discussion, threaded, as with web forums and BBSes, though posts are stored on the server sequentially. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Switch Day
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The term ''blue'' generally describes colours perceived by humans observing light with a dominant wavelength that's between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selective Availability
The error analysis for the Global Positioning System is important for understanding how GPS works, and for knowing what magnitude of error should be expected. The GPS makes corrections for receiver clock errors and other effects but there are still residual errors which are not corrected. GPS receiver position is computed based on data received from the satellites. Errors depend on geometric dilution of precision and the sources listed in the table below. Overview User equivalent range errors (UERE) are shown in the table. There is also a numerical error with an estimated value, \ \sigma_ , of about . The standard deviations, \ \sigma_R, for the coarse/acquisition (C/A) and precise codes are also shown in the table. These standard deviations are computed by taking the square root of the sum of the squares of the individual components (i.e., RSS for root sum squares). To get the standard deviation of receiver position estimate, these range errors must be multiplied by the app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
