Google is now an automaker of sorts. It has built a prototype of its long-brewing self-driving car, which looks like a mix between a Volkswagen Beetle and a Smart Fortwo. The car features no manual controls, and, as a precaution, is limited to 25 miles per hour. Google has produced a video showing it being test-driven by a number of people — including a blind man. follow link
Option-Click AirPort Menu for Network Details
If you hold down the Option key while clicking the AirPort menu in Mac OS X 10.5 Leopard, you'll see not just the names of nearby Wi-Fi networks, but additional details about the selected network. Details include the MAC address of the network, the channel used by the base station, the signal strength (a negative number; the closer to zero it is, the stronger the signal), and the transmit rate in megabits per second showing actual network throughput. If you hover the cursor over the name of a network to which you're not connected, a little yellow pop-up shows the signal strength and type of encryption.
Google Unveils Its Self-Driving Car