Place is the code

In cryptographic communication, a sender has a message in mind then converts that into a coded signal. The sender dispatches the signal through a communication channel and it is picked up by a recipient who decodes the message. The coding and decoding algorithms at either end of the channel select from an array of alternative…More

Africa calling: How to say a lot with a little

When we had cell phones it was called “beeping.” Now in the era of smartphones another word serves better. It’s “flashing” or “making a flash call.” I think we even did it with land lines as well back in the day. Children away from home would flash call their parents. Though we didn’t recognise it…More