INTO THE COSMOS - Architeq/Chopsy

Stargazer Live [Miku's 39 ginving day concert]



The Internet of Things


World's first flight by "flapless" aircraft


Nice date

There a lot of jokes around 10/10/10 on the web. A cheesy one:

There are only 10 kinds of people: Those who can count binary, and those who can't.



Making Stuff Tick

Once in a while I read stuff on sensor networks, and it is interesting how bafflingly difficult the simplest problems are in that context.

A sensor network node is (usually) defined as a small piece of hardware including a radio, a battery, and a few simple sensors and actuators. The most important aspect to optimize against is battery life; in many applications nodes will just sleep most of the time. Academically, a sensor network comprises a distributed loosely connected network of uniform nodes. Non-academically, admittedly, sensor networks will often be small (less than a hundred nodes), consist of a sink, usually tethered to a network and a power supply, and anchor nodes may be developed in a network, for instance, for positioning/triangualization reasons. Often, just the addition of a few specialized nodes greatly simplifies design and tree-spanning protocols with a root node just work well.

However, for robust development of protocols for self-organizing networks, often the academic view is taken. So, a small, exercise:

Assume a thousand nodes, make them all blink at 1Hz at roughly the same time while preserving battery life.  


Chromepad Demo


Google in Antartica?

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