Welcome to Carlo on the Go! In this blog you will find helpful cyber defense information for mobile devices like smart phones, notebook computers, and bluetooth headsets. As with any technology, the more you know about it, the safer you can be and the more fun you can have!
Carlo
Cyber Defender &
CyberPort Technician
Carlo is always on the go, whether it's to watch a match with his favorite team, the Antezelles, to play a spontaneous pick-up game of soccer, or to join in the latest LAN party in Cyberspace. His mobility knowhow and endless energy keep him ready and able for the unique cyber defense challenges that mobility brings.
A recent graduate (class of '09), Carlo has completed his post-graduation field training in the field of cyber forensics, and returns to the Academy to take up the post of CyberPort Technician.
To be prepared is half the victory
- Miguel Cervantes
Energy bars
Interests:Sports, dogs, smart phones
July 26, 2010
Mobile Devices: What is a Photophone?
So I was thinking – as long as we’re talking about old technology, let’s talk about REALLY old technology! I’m not talking about the 1980’s, I’m taking about the 1880’s and the first wireless phone call. Alexander Graham Bell didn’t just invent the telephone; he also invented something called the photophone (a.k.a. radiophone). While the telephone transmitted sound through electricity, a photophone sends sound through light!
Unfortunately for Bell, his photophone never caught on. Interference from things like weather and trees made reliable connectivity almost impossible. The wired telephone, on the other hand, wasn’t affected by these things. Communicating through light wouldn’t be reliable until the creation of fiber optic networks in the mid 20th century.