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  1. Integrated circuit (IC) | Types, Uses, & Function | Britannica

    Nov 20, 2025 · What is an integrated circuit? What are the basic components found inside an integrated circuit? How are integrated circuits different from traditional circuits made with separate parts? What …

  2. Integrated circuit - Microprocessor, Components, Design | Britannica

    Dec 11, 2025 · Integrated circuit - Microprocessor, Components, Design: Microprocessors are the most-complicated ICs. They are composed of billions of transistors that have been configured as …

  3. Supernova - Type I, Stellar Death, Explosion | Britannica

    Dec 7, 2025 · Type I supernovae can be divided into three subgroups—Ia, Ib, and Ic—on the basis of their spectra.

  4. Hijacking of IC-814 - Encyclopedia Britannica

    Dec 12, 2025 · IC-814 touched down in Kandahār on the morning of December 25 and was immediately surrounded by armed Taliban soldiers. Although the hostages were provided food and water, the …

  5. integrated circuit summary | Britannica

    integrated circuit (IC), or microcircuit or chip or microchip, Assembly of microscopic electronic components (transistor s, diodes, capacitors, and resistors) and their interconnections fabricated as …

  6. Integrated circuit - P-N Junction, Transistors, Microchips | Britannica

    Nov 20, 2025 · Integrated circuit - P-N Junction, Transistors, Microchips: A p-type or an n-type semiconductor is not very useful on its own. However, joining these opposite materials creates what …

  7. Chemical compound - Elements, Molecules, Reactions | Britannica

    Nov 11, 2025 · A third classification scheme is based on reactivity—specifically, the types of chemical reactions that the compounds are likely to undergo. For example, acids are compounds that produce …

  8. Horsehead Nebula | Dark Cloud, Interstellar Dust & Molecular …

    Horsehead Nebula, (catalog number IC 434), ionized-hydrogen region in the constellation Orion. The nebula consists of a cloud of ionized gas lit from within by young, hot stars; a dark cloud containing …

  9. Integrated circuit - Fabrication, Components, Processes | Britannica

    Dec 11, 2025 · All sorts of devices, such as diodes, transistors, capacitors, and resistors, can be built with p - and n -type semiconductors. It is convenient to be able to manufacture all of these different …

  10. Internal-combustion engine | Definition & Facts | Britannica

    Nov 21, 2025 · Useful work generated by an internal-combustion (IC) engine results from the hot gaseous products of combustion acting on moving surfaces of the engine, such as the face of a …