Big Darn Deals ch. 8

First of all I had never heard of Smart Dust until this class! They are very interesting and so technologically great. I read that they could put these around hospitals and record patients movements, humidity and temperature, and even inform us of earthquakes and natural disasters! Secondly, I didn't know about the Wireless IM'ing. I knew that there were computer and cell phones that could do this, but I didn't know there was an actually device JUST for IM'ing. I would like one! The thing that gets me is that there aren't any monthly charges. You just have to buy the device and then find somewhere where there is free Wi-Fi! And lastly, to me it's crazy how a picture, video, or even a text message can go wirelessly to someone’s phone. I have never looked into and just went with the flow, but in this chapter I learned a little more about it. There are LAN's, MAN's and WAN's. It was interesting but I am still in awe of how it works!