|
Danny Dunn, Invisible Boy
''Danny Dunn, Invisible Boy'' is the thirteenth novel in the ''Danny Dunn'' series of juvenile science fiction/adventure books written by Raymond Abrashkin and Jay Williams. The book was first published in 1974. Plot summary Danny exacerbates a small electrical fire, altering an experimental crystalline semiconductor material Professor Bullfinch was evaluating. Prof. Bullfinch is able to use this altered material to create ISIT (the Invisibility Simulator with Intromittent Transmission), a dragonfly-like probe which could be piloted with a telepresence helmet and gauntlet gloves. The trio each tries out the device. Irene uses ISIT to birdwatch. Joe uses the device to observe a beehive from the inside. Danny discovers a bully nicknamed "Snitcher" cheating by copying the word list to the school spelling bee and dishonestly winning himself a boombox. The ISIT is outfitted with a speaker which is subsequently used by Danny as a means to pretend to be the bully's conscience, in ord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raymond Abrashkin
Raymond Abrashkin (March 9, 1911 – August 25, 1960) was an American writer and filmmaker. He is known for writing, co-producing, and co-directing '' Little Fugitive'' and for co-creating and co-writing with Jay Williams the '' Danny Dunn'' series of science fiction books for children. He also wrote the story "Little Cowboy" (1948). Family Raymond's parents were Harry Abrashkin, born in what is now Dnipropetrovsk, Ukraine, and Bertha Kornfeld, born in England. Raymond was born in Brooklyn, New York. He graduated from the City College of New York and taught in New York City public schools. His writing career began as the education editor of ''PM Newspaper''. He became the principal writer for Young People's Records. He wrote the syndicated comic strip ''Timmy'', drawn by Howard Sparber. Around 1935, he married Evelyn Kurinski. They had two children, John Michael (West) Abrashkin, an artist (1941–1992), and William Henry (Hank) Abrashkin, a Trial Court Judge in Massachuset ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surveillance
Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing or directing. This can include observation from a distance by means of electronic equipment, such as closed-circuit television (CCTV), or interception of electronically transmitted information like Internet traffic. It can also include simple technical methods, such as Human intelligence (intelligence gathering), human intelligence gathering and postal interception. Surveillance is used by citizens for protecting their neighborhoods. And by governments for intelligence gathering - including espionage, prevention of crime, the protection of a process, person, group or object, or the investigation of crime. It is also used by criminal organizations to plan and commit crimes, and by businesses to Industrial espionage, gather intelligence on criminals, their competitors, suppliers or customers. Religious organisations charged with detecting he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ars Technica
''Ars Technica'' is a website covering news and opinions in technology, science, politics, and society, created by Ken Fisher and Jon Stokes in 1998. It publishes news, reviews, and guides on issues such as computer hardware and software, science, technology policy, and video games. ''Ars Technica'' was privately owned until May 2008, when it was sold to Condé Nast Digital, the online division of Condé Nast Publications. Condé Nast purchased the site, along with two others, for $25 million and added it to the company's ''Wired'' Digital group, which also includes '' Wired'' and, formerly, Reddit. The staff mostly works from home and has offices in Boston, Chicago, London, New York City, and San Francisco. The operations of ''Ars Technica'' are funded primarily by advertising, and it has offered a paid subscription service since 2001. History Ken Fisher, who serves as the website's current editor-in-chief, and Jon Stokes created ''Ars Technica'' in 1998. Its purpose w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micromechanical Flying Insect
The Micromechanical Flying Insect (MFI) is a miniature UAV (unmanned aerial vehicle) composed of a metal body, two wings, and a control system. Launched in 1998, it is currently being researched at University of California, Berkeley., UC Berkeley. The MFI is among a group of UAVs that vary in size and function. The MFI is proving to be a practical approach for specific situations. The US Office of Naval Research and Defense Advanced Research Project Agency are funding the project. The Pentagon hopes to use the robots as covert "flies on the wall" in military operations. Other prospective uses include space exploration and search and rescue. Comparison with other UAVs There are a variety of UAVs that perform different operations. The MFI is of greatest potential use to the United States Military. There are currently various UAVs in this field that perform tasks such as gaining battlefield intelligence or being a decoy for potential missiles. In respect to gaining battlefield intel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FlyTech Dragonfly
The Flytech Dragonfly is a remote-controlled flying toy manufactured by WowWee. The Dragonfly has been incorrectly billed as the world's first commercially available RC ornithopter (flapping wing aircraft). It was actually preceded by several other products, including Hobbytechnik's Skybird, Park Hawk, and Slow Hawk radio controlled ornithopters, and the Cybird radio-controlled ornithopter from Neuros. The Dragonfly is made from lightweight but strong materials and has a crash-resistant structure. It is rechargeable and has multiple modes for beginner and advanced users. The Dragonfly is not a robot like the majority of WowWee's current products, such as the Robosapien and the Roboreptile. Replacement wings are available for purchase. History The Dragonfly was invented by Sean Frawley and Dan Getz who began experimenting with ornithopters while they were still teenagers. The four-winged design of the Dragonfly was based on a previous rubber-band-powered ornithopter kit design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insectothopter
The Insectothopter was a miniature unmanned aerial vehicle developed by the United States Central Intelligence Agency's research and development office in the 1970s. The Insectothopter was the size of a dragonfly, and was hand-painted to look like one. It was powered by a miniature fluidic oscillator to propel the wings up and down at the proper rate to provide both lift and thrust. A small amount of propellant produced gas to drive the oscillator, and extra thrust came from the excess gas vented out the rear. The project was abandoned when the Insectothopter was found to be too difficult to control in crosswinds.Shrader, KatherineNew Agency IARPA Develops Spy Tools ''The Washington Post'', May 31, 2007. See also *Ornithopter An ornithopter (from Greek ''ornis, ornith-'' "bird" and ''pteron'' "wing") is an aircraft that flies by flapping its wings. Designers sought to imitate the flapping-wing flight of birds, bats, and insects. Though machines may differ in form, th ... Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium (website)
Medium is an American online publishing platform developed by Evan Williams and launched in August 2012. It is owned by A Medium Corporation. The platform is an example of social journalism, having a hybrid collection of amateur and professional people and publications, or exclusive blogs or publishers on Medium, and is regularly regarded as a blog host. Williams, previously co-founder of Blogger and Twitter, initially developed Medium as a means to publish writings and documents longer than Twitter's 140-character (now 280-character) maximum. In March 2021, Medium announced a change in its publishing strategy and business model. The change is to its mix of paid journalists working on its own publications – this will be proportionally reduced – versus its support of independent writers, which will increase. History 2012 (launched) - 2016 Evan Williams, Twitter co-founder and former CEO, created Medium to encourage users to create posts longer than the then 140-character ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller and a system of communications with the UAV. The flight of UAVs may operate under remote control by a human operator, as remotely-piloted aircraft (RPA), or with various degrees of autonomy, such as autopilot assistance, up to fully autonomous aircraft that have no provision for human intervention. UAVs were originally developed through the twentieth century for military missions too "dull, dirty or dangerous" for humans, and by the twenty-first, they had become essential assets to most militaries. As control technologies improved and costs fell, their use expanded to many non-military applications.Hu, J.; Bhowmick, P.; Jang, I.; Arvin, F.; Lanzon, A.,A Decentralized Cluster Formation Containment Framework for Multirobot Systems IEEE T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clive Thompson (journalist)
Clive Thompson (born 30 October 1968) is a Canadian freelance journalist, blogger, and science and technology writer. Early life and education Thompson grew up in the 1970s and the 1980s in Toronto, Canada. He spent his childhood working with early models of computers. He tried to understand programs for games and for artificial intelligence as a child but did not succeed, so he chose not to study science. Thompson graduated from the University of Toronto with majors in political science and English in 1992. He previously worked for Canada's ''Report on Business'' magazine, ''This Magazine'', and ''Shift'' magazine, then became a freelance contributor for ''The New York Times Magazine'', ''The Washington Post'', ''Lingua Franca'', ''Wired'', ''Shift'', ''Entertainment Weekly'' and several other publications. Professional work Thompson writes about digital technologies and their social and cultural impact for a number of publications, including the ''New York Times Magazine'' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Intelligence Agency Directorate Of Science & Technology
The Directorate of Science & Technology (DS&T) is the branch of the United States Central Intelligence Agency (CIA) tasked with collecting and analyzing information through technological means and develop technical systems in order to advance the CIA’s intelligence gathering. History Formation On December 31, 1948, the CIA formed the Office of Scientific Intelligence (OSI), by merging the Scientific Branch in the Office of Reports and Estimates with the Nuclear Energy Group of the Office of Special Operations. In 1962, the CIA formed the Deputy Directorate of Research (DDR), headed by Herbert Scoville. Under it was the newly formed Office of Special Activities, along with the Office of ELINT and the Office of Research and Development, which were quickly integrated into the DDR. However, the OSI remained part of the Directorate of Operations. In 1963, Scoville resigned, frustrated by the unwillingness of other departments to transfer their responsibilities. Director of Centr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Intelligence Agency
The Central Intelligence Agency (CIA ), known informally as the Agency and historically as the Company, is a civilian intelligence agency, foreign intelligence service of the federal government of the United States, officially tasked with gathering, processing, and analyzing national security information from around the world, primarily through the use of Human intelligence (intelligence gathering), human intelligence (HUMINT) and performing covert actions. As a principal member of the United States Intelligence Community (IC), the CIA reports to the Director of National Intelligence and is primarily focused on providing intelligence for the President of the United States, President and Cabinet of the United States. President Harry S. Truman had created the Central Intelligence Group under the direction of a Director of Central Intelligence by presidential directive on January 22, 1946, and this group was transformed into the Central Intelligence Agency by implementation of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blueprint
A blueprint is a reproduction of a technical drawing or engineering drawing using a contact print process on light-sensitive sheets. Introduced by Sir John Herschel in 1842, the process allowed rapid and accurate production of an unlimited number of copies. It was widely used for over a century for the reproduction of specification drawings used in construction and industry. The blueprint process was characterized by white lines on a blue background, a negative of the original. The process was not able to reproduce color or shades of grey. The process is now obsolete. It was first largely displaced by the diazo whiteprint process, and later by large-format xerographic photocopiers. The term '' blueprint'' continues to be used less formally to refer to any floor plan (and even less formally, any type of plan). Practicing engineers, architects, and drafters often call them "drawings", “prints”, or “plans”. It has almost entirely been replaced with digital computer-ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
