<option id="wfwem"></option>

<dd id="wfwem"></dd>
    1. You are using an outdated browser. Please upgrade your browser to improve your experience and security.

      Technology

      Humankind has long striven to improve its living conditions through the development of tools, instruments, and transportation and communications systems, all with the goal of making our lives easier, more productive and—why not—more fun, too! Thanks to human curiosity and technological research, many significant inventions have been made throughout history that in turn made a difference in our daily lives.
      Browse Subcategories

      Featured content, January 21, 2021

      7 Accidents and Disasters in Spaceflight History
      It doesn’t take rocket science to understand why space travel can be a little tricky.
      List / Technology
      After a perfect launch, spectators try to catch a last glimpse of Space Shuttle Columbia, barely visible at the top end of the twisted column of smoke.
      Everyday Stuff Developed by NASA
      How much of your stuff could be used in space?
      #WTFact / Technology
      The International Space Station photographed against the Rio Negro, Argentina, from the shuttle orbiter Atlantis, February 16, 2001.  Atlantis' primary mission was to deliver the Destiny laboratory module, visible at the leading end of the station.
      How Do Microwaves Work?
      What’s the magic behind the machine?
      Demystified / Technology
      Using microwave oven
      History of Technology Timeline
      Learn more about the history of technology from the first tools to the space age to the computer age.
      Companion / Technology
      Abstract vector hi speed internet technology background
      Energy conversion
      Energy conversion, the transformation of energy from forms provided by nature to forms that can be used by humans. Over the...
      Encyclopedia / Technology
      Open-cycle constant-pressure gas-turbine engine.
      Radiation measurement
      Radiation measurement, technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta,...
      Encyclopedia / Technology
      Figure 1: (A) A simple equivalent circuit for the development of a voltage pulse at the output of a detector. R represents the resistance and C the capacitance of the circuit; V(t) is the time (t)-dependent voltage produced. (B) A representative current pulse due to the interaction of a single quantum in the detector. The total charge Q is obtained by integrating the area of the current, i(t), over the collection time, tc. (C) The resulting voltage pulse that is developed across the circuit of (A) for the case of a long circuit time constant. The amplitude (Vmax) of the pulse is equal to the charge Q divided by the capacitance C.
      Biotechnology
      Biotechnology, the use of biology to solve problems and make useful products. The most prominent area of biotechnology is...
      Encyclopedia / Technology
      recombinant DNA
      Aerospace industry
      Aerospace industry, assemblage of manufacturing concerns that deal with vehicular flight within and beyond Earth’s atmosphere....
      Encyclopedia / Technology
      Orville Wright in first controlled flight, 1903

      Technology Quizzes

      keyboard. Human finger touch types www on modern QWERTY keyboard layout. Blue digital tablet touch screen computer keyboard. Web site, internet, technology, typewriter
      Computers: Fact or Fiction?
      Is QWERTY a computer language? Was the first Web site established in the U.S.? Log into this computer quiz and prove that...
      White male businessman works a touch screen on a digital tablet. Communication, Computer Monitor, Corporate Business, Digital Display, Liquid-Crystal Display, Touchpad, Wireless Technology, iPad
      Technological Ingenuity
      From the first tools of early humans to IBM’s Deep Blue computer, learn more about technological ingenuity in this quiz.
      White male businessman works a touch screen on a digital tablet. Communication, Computer Monitor, Corporate Business, Digital Display, Liquid-Crystal Display, Touchpad, Wireless Technology, iPad
      Gadgets and Technology: Fact or Fiction?
      Is virtual reality only used in toys? Have robots ever been used in battle? From computer keyboards to flash memory, learn...
      radio. Old analog electric radio with speaker, knobs and tuner. transmission, radio wave
      Acoustics and Radio Technology: Fact or Fiction?
      Do cellular phones use relayed radio signals? From antennas to tweeters, test the strength of your mental signals in this...
      Screenshot of Microsoft Outlook Spam Folder. Junk folder. Internet. Communication. Email. E-mail.
      Internet Firsts: Fact or Fiction?
      You may fancy yourself a denizen of the internet, but how much do you know about its history? Test your knowledge with this...
      Happy business woman talking on cell phone in office, telephone, mobile phone
      Mobile Phones
      Hello? Can you hear me now? Test your knowledge of on-the-go communication with this mobile phones quiz!
      Microsoft sign adorns new office building housing computer giant's office in Vancouver, Canada, May 7, 2016.
      Tech Companies
      Think yourself a tech aficionado? Test your knowledge of some of the biggest tech companies in the game with this quiz!
      KC-135 Stratotanker refueling U.S. Airforce military F-16 Falcon. Transportation aircraft refueled in mid-air aka aerial refueling.
      Military Technology Quiz
      What did Patton call “the greatest battle implement ever devised”? What is the oldest still-floating commissioned warship...
      NASA's Reduced Gravity Program provides the unique weightless or zero-G environment of space flight for testing and training of human and hardware reactions. NASA used the turbojet KC-135A to run these parabolic flights from 1963 to 2004.
      History of Flight Quiz
      What was the famed “Sheet Metal Donkey”? How did the Wright brothers control their aircraft while in flight? Buckle your...
      Beautiful skyline of Midtown Manhattan from Rockefeller Observatory - Top of the Rock - New York, USA
      Empire State Building Quiz
      You don’t have to be from New York to get yourself into an “Empire State of Mind”—take this quiz and exercise your knowledge...
      Image Gallery
      Technology
      Never Miss a Day in History
      Sign up for daily fun facts about this day in history, updates, and special offers delivered right to your inbox.

      Technology Subcategories

      combine harvester Agriculture & Agricultural Technology
      Agriculture, the active production of useful plants or animals in ecosystems that have been created by people. Agriculture has often been conceptualized narrowly, in terms of specific combinations of activities and organisms—wet-rice production in Asia, wheat farming in Europe, cattle ranching in the Americas, and the like—but a more holistic perspective holds that humans are environmental engineers who disrupt terrestrial habitats in specific ways.
      Articles
      A train departing from a London Underground subway station. Cars & Other Vehicles
      Automobile, byname auto, also called motorcar or car, a usually four-wheeled vehicle designed primarily for passenger transportation and commonly propelled by an internal-combustion engine using a volatile fuel.
      Articles
      subcategory placeholder Computers
      Have computers replaced dogs as man's best friend? They've certainly become an indispensable part of daily life for most people in our modern society. The first modern computers used analog systems, which were especially useful for solving problems and simulating dynamic systems in real time. By the 1960s, digital computers had largely replaced their analog counterparts, though analog computers continued to be used for aircraft and spaceflight simulation. Later there was a similar transition from mainframe computers—large machines that were typically shared by multiple people within one organization—to personal computers, which were much more manageable in size and usability. The advent of personal computers brought computers into the individual consumer's home for the first time. Rapid developments in computer and Internet technology powered an ever-expanding selection of handheld digital devices such as the Palm Pilot, BlackBerry, iPhone, and iPod. Computer chips were increasingly embedded in consumer devices of all sorts, including cars, cameras, kitchen appliances, toys, watches, and much more, reinforcing the interconnected nature of the world in which we now live.
      Articles
      Obverse side of the gold medal given to the winner of the Charles Stark Draper Prize, awarded annually by the U.S. National Academy of Engineering. Engineering
      Engineering, the application of science to the optimum conversion of the resources of nature to the uses of humankind. The field has been defined by the Engineers Council for Professional Development, in the United States, as the creative application of “scientific principles to design or develop structures, machines, apparatus, or manufacturing processes, or works utilizing them singly or in combination; or to construct or operate the same with full cognizance of their design; or to forecast their behaviour under specific operating conditions; all as respects an intended function, economics of operation and safety to life and property.” The term engineering is sometimes more loosely defined, especially in Great Britain, as the manufacture or assembly of engines, machine tools, and machine parts.
      Articles
      subcategory placeholder Industry
      Industry, a group of productive enterprises or organizations that produce or supply goods, services, or sources of income. In economics, industries are customarily classified as primary, secondary, and tertiary; secondary industries are further classified as heavy and light.
      Articles
      Thomas Alva Edison Inventions
      Invention, the act of bringing ideas or objects together in a novel way to create something that did not exist before.
      Articles
      subcategory placeholder The Web & Communication
      Telecommunication, science and practice of transmitting information by electromagnetic means. Modern telecommunication centres on the problems involved in transmitting large volumes of information over long distances without damaging loss due to noise and interference. The basic components of a modern digital telecommunications system must be capable of transmitting voice, data, radio, and television signals. Digital transmission is employed in order to achieve high reliability and because the cost of digital switching systems is much lower than the cost of analog systems. In order to use digital transmission, however, the analog signals that make up most voice, radio, and television communication must be subjected to a process of analog-to-digital conversion.
      Articles
      Britannica now has a site just for parents!
      Subscribe Today!
      se94se最新网站