What codes do spies use?

What codes do spies use? 7 Secret Spy Codes for Kids with Printable List | Cryptography for kids Morse Code. Morse code was invented in the early 1800s by Samuel Morse. Pigpen Cipher. Phonetic Alphabet. Tap Code. Letters for Numbers. Substitution Ciphers. American Sign Language. What techniques do spies use? Technology and techniques Agent handling. […]

What is special about nylon?

What is special about nylon? Nylon fibers are exceptionally strong and elastic and stronger than polyester fibers. The fibers have excellent toughness, abrasion resistance, and are easy to wash, and to dye in a wide range of colors. The filament yarns provide a smooth, soft, and lightweight fabric of high resilience. Is Nylon good or […]

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