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  2. Farey sequence - Wikipedia

    en.wikipedia.org/wiki/Farey_sequence

    In mathematics, the Farey sequence of order n is the sequence of completely reduced fractions, either between 0 and 1, or without this restriction, [a] which when in lowest terms have denominators less than or equal to n, arranged in order of increasing size.

  3. Virus - Wikipedia

    en.wikipedia.org/wiki/Virus

    A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.

  4. Elk Cloner - Wikipedia

    en.wikipedia.org/wiki/Elk_Cloner

    Elk Cloner was created by Skrenta as a prank in 1982. Skrenta already had a reputation for pranks among his friends. In sharing computer games and software, he would often alter the floppy disks to shut down or display taunting on-screen messages.

  5. Timeline of the evolutionary history of life - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the...

    Bacterial viruses (bacteriophages) emerge before or soon after the divergence of the prokaryotic and eukaryotic lineages. [44] Red beds show an oxidising atmosphere, favouring the spread of eukaryotic life. [45] [46] [47] 1500 Ma Volyn biota, a collection of exceptionally well-preserved microfossils with varying morphologies. [48] 1300 Ma

  6. Computer virus - Wikipedia

    en.wikipedia.org/wiki/Computer_virus

    This is an accepted version of this page This is the latest accepted revision, reviewed on 27 February 2025. Computer program that modifies other programs to replicate itself and spread Hex dump of the Brain virus, generally regarded as the first computer virus for the IBM Personal Computer (IBM PC) and compatibles A computer virus is a type of malware that, when executed, replicates itself by ...

  7. Chargaff's rules - Wikipedia

    en.wikipedia.org/wiki/Chargaff's_rules

    A diagram of DNA base pairing, demonstrating the basis for Chargaff's rules. Chargaff's rules (given by Erwin Chargaff) state that in the DNA of any species and any organism, the amount of guanine should be equal to the amount of cytosine and the amount of adenine should be equal to the amount of thymine.

  8. Viral interference - Wikipedia

    en.wikipedia.org/wiki/Viral_interference

    Viral interference is considered the most common outcome of coinfection, or the simultaneous infection of a host by two or more distinct viruses. [5] The primary form of viral interference is known as superinfection exclusion, in which the initial infection stimulates a resistance to subsequent infection by related viruses.

  9. The Magic School Bus (book series) - Wikipedia

    en.wikipedia.org/wiki/The_Magic_School_Bus_(book...

    The Magic School Bus is a series of children's books about science, written by Joanna Cole and illustrated by Bruce Degen.Designed for ages 6-9, they feature the antics of Ms. Valerie Felicity Frizzle and her class, who board a sentient anthropomorphic mini school bus which takes them on field trips to impossible locations, including the solar system, clouds, the past, and the human body.

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