Yokki

I keep getting the following message "You have been disconnected from chat because you have signed into Yahoo!7 Messenger from another computer or device" every hour or two. The thing is, I'm actually NOT logged in anywhere else (that I know of) - I'm just sitting here at work and all my home PCs are off. I also don't use any mobile devices for Messenger.

This behaviour is relatively new (ie. past few weeks). Before that, I had no such issue. Any ideas as to what might be going on?

About 20 years ago there was an animated (cartoon) KFC commercial about a family who go driving in the country. One of the kids is called "Hugo" and they stop at a KFC store. The lyrics and tune were cute and catchy, but I can't remember the words!! Does anyone know the full lyrics?

I'd like to be able to use proper mathematical symbols (superscripts / subscripts / greek letters etc) in my answers here. Some people seem to be able to do it, so what's the secret? Do I need to copy and paste from the Character Map? Will everyone see the same thing? What's the easiest way?

I understand that the temperature of something is driven by the internal motion of it's constituent particles. However, when I contemplate the cold air coming from, say, an air conditioner I'm confounded by the apparent contradiction between the (relatively) little internal motion of the air molecules and the speed and turbulence of the airflow itself.

How is the "coldness" of the air maintained even while the air itself is being violently blown around? Doesn't the mere fact that it is hurled at and collides with my body impart motion to the molecules? Yet it still feels cold to me, which (I guess) means that the lack of molecular motion is sensed by my skin and, more to the point, is capable of being an energy sink for heat from my own body.

I guess the same question arises when we think about cold yet very strong and turbulent winds.