Wednesday, May 30, 2007

Telephones aren't just for telephones anymore.

On my mission to register my handle on every new Web 2.0 site, I've been coming across a trend of online telephony gimicks-- a couple of which I really like.

This post is to recommend these services, I'm not going to go into what VoIP or voice over internet protocol means, but if you've heard of Vontage or Skype you already know it's out there. I will just say that if you want a very cheap telephone line, look into Skype.

That aside, you don't need VoIP for these services. The first site is Jangl.com and it allows you to leave a callback number (or callback link) on your website, myspace page, email signature, classified ad or anywhere you want, which isn't you real number. You keep your pivacy and can discontinue the number for each or all callers who contact you through the service at will.

Jott.com I like even more. First you set up a number for you to call Jott. Then you can have it read your address book so that you can "jott" anyone with an email address. The voice regonition is great. I call the service, it replies "Who do you want to jott?" and I say the name of anyone in my address book and it prompts me to speak my message. Next thing you know, the recipent has your spoken message as text in their email. You can also jott yourself reminders.

Both those services are free. Y'know what else is free these days? 411! You don't ever pay for 411 information again, under the condition of listening to advertisements. Two services I've found do this now: 1-800-FREE-411 and 1-800-GOOG-411, a Google service. Both work well, and both have sponsors. Sponsors equal ads.

I may post more on these services in the future because they are always growing. GrandCentral.com caught my eye just yesterday for example. As for now, you're on your own.

Saturday, May 26, 2007

"I want to believe" or "Is life unique to Earth"

Lately I have been interested in life outside of earth. I don't know if it is because of reading one to many crazy Lost theories or zoning out to the Astronomy Cast postcast, but I've been wondering...

Put aside the fact that I saw a UFO years ago, I don't believe aliens have been spotted by humans. However, I have always believed that extraterrestrial life must exist in a universe this big. In fact, a lot of otherworldly intelligence must be out there, right? Law of averages and all. But then why haven't humans seen them if the galaxy is teeming with life?

I'm obviously not the first person to wonder. The Fermi paradox is the name of the contradiction between high estimates of the probability of the existence of alien life and the lack of evidence for or contact with such civilizations. (Thanks Wikipedia.) Mr. Fermi asked the question and a Frank Drake attempted to answer it.

The Drake equation I find very interesting. It multiplies the factors deemed necessary for our contact with ET, unfortunatly we can only estimate the values of these factors. The factors to consider are the rate of star formation in our galaxy the fraction of those stars that have planets, the average number of planets that can potentially support life per star that has planets, the fraction of the previous that actually go on to develop life at some point, the fraction of the previous that actually go on to develop intelligent life, the fraction of civilizations that develop a technology that releases detectable signs of their existence into space, and the length of time such civilizations release detectable signals into space. Estimates for these fractions range from .0001 to 10,0000 depending on who you ask.

From what I know now, I doubt we will find intelligent life in a long long time if ever, because I think earth is very unique. Earth is a prime breeding ground for life, the likes of which we have yet to see on any other planet. I am not only basing this on the presence of water and atmosphere, or the ideal distance from the sun. The type of sun matters too. Most stars are not like the sun. A star needs at least as much metal in it to support life as we know it. Also, earth is lucky to have Jupiter where it is positioned in our solar system. Without it, the meteors and a asteroids that now are pulled into its gravity would collide with earth on a fairly regular basis.

Thinking back through what we know of our biological history, life almost didn't arise many times over; and then, almost didn't evolve. If the dinosaurs never died off, humans would not be here. As for hoping aliens could develop as far as we have or further, we have to look at history as well. Our civilization as been crippled in the past (fall of Rome) as well as nearly destroyed (nuclear war.) What's to say alien cultures would be as lucky to avoid these growing pains?

My conclusion is this: I now believe that life may be out there, but rare enough for civilizations to never cross paths. Which may very well be a good thing.