资讯

When the first radios and telegraph lines were put into service, essentially the only way to communicate was to use Morse code. The first transmitters had extremely inefficient designs by today’s ...
The robotic Japanese cargo vessel now en route to the International Space Station is loaded with food, clothes, equipment — and a set of tiny amateur radio satellites, including one that will write ...
Information could potentially be stored in ice for millennia, simply by making subtle changes to the shape and position of internal bubbles, which can then be converted into binary or Morse codes.
Code obfuscation has been around for a long time. The obfuscated C contest first ran way back in 1984, but there are examples of natural language obfuscation from way earlier in history. Namely ...
On July 12, 1999, the nation’s final message in Morse code was sent out to sea from a remote Bay Area radio station. The end of an era, the room’s mood was mournful. Grizzled old men wept. “We wish ...
The Journal of Experimental Education, Vol. 81, No. 1 (2013), pp. 123-137 (15 pages) Advocates of modality preference posit that individuals have a dominant sense and that when new material is ...
Many of us geek love codes, cyphers and other types of hidden messages, and there are few more famous codes than Morse Code. Developed in the 1800s, Morse Code is simple and easy to learn, it’s also ...