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"seesaw" - 2 õppematerjali

Suuline eksam
15
doc

Suuline eksam

Comedy Komöödia Row Rida Cloakroom Riietehoid Audience Publik Circle Rõdu Matinee Päevane etendus Standby Odav pilet Circus Tsirkus Funfair Lõbustuspark Swing Kiik, kiikuma Merrygoround Karusell Seesaw Kiiklaud Slide Liumägi Clown Kloun Performer Esineja Parade Rongkäik March Marssima Rope Köis Torch Tõrvik Big top Suur tsirkusetelk Juggle Zongleerima Rocking horse Kiikhobu

Keeled → Inglise keel
588 allalaadimist
TheCodeBreakers
946
pdf

TheCodeBreakers

more densely in those fibers of paper that had been disturbed by any kind of wetting action, thus tracing the pen's course. The Germans replied by writing in a sympathetic ink and then moistening the entire sheet. The Allies struck back with a chemical streak test that would show whether the paper surface had been dampened. This was almost as incriminating as actual development of a secret-ink letter, for who but a spy would wet a letter? The seesaw battle between the chemists of Germany, traditionally world leaders in that science, and those of the Allies reached a stalemate when both sides discovered the general reagent—one that would develop any secret ink at any time, even on moistened paper. Formulas differ slightly, but all use a mixture of iodine, potassium iodide, glycerine, and water, dabbed on with cotton. The liquid concentrates in the more disturbed fibers and reveals the writing. By the

Informaatika → krüptograafia
15 allalaadimist


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