Predictions of Evolution of Alien Life

Evolution of life on other worlds is seeming more likely as human knowledge of the Universe expands. David Zeigler has recently proposed eleven Evolution Predictions of what abilities or traits will evolve on other worlds, conditions allowing. The predictions are that some lifeforms will be the following:

• Water dependent and carbon based.
• Chemosynthetic (chemical based energy synthesis) or photosynthetic (light energy synthesis).
• Heterotrophic and predators of heterotrophs (food chain of lifeforms).
• Passively or actively mobile to seek out optimum conditions. As such, body plans will evolve something similar to what we would identify as a head, with arrays of sensory organs.
• Sessile (non-mobile or anchored in place).
• Powered flight (birds, some insects, bats, pterosaurs), or at least directed gliding (flying squirrel, flying fish).
• Parasites, which on Earth account for over 65% of the total number of species.
• Genes will be selfish, and natural selection will spawn adaption to the environment.
• Will have senses, especially sight, sound, touch, heat detection, etc.
• Motile, organisms will have natural attraction and repulsion to stimuli.
• Large bodies of water will foster a wide variety of lifeforms, which may independently evolution similar adaptions.

The list seems a little incomplete and maybe not well organized. It is a good starting point in the discussion of what we can expect to find on other worlds. It can help us in knowing where to look, as well. Perhaps this list is formed from human prejudice. However, with only Earth as our example, this (at least for the time being) seems to be a fair set of predictions.

Source: Skeptic Vol. 14 No. 2, 2008 - Predicting Evolution


Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

Tuesday Two: SolidWorks World edition

There's been many inventions and innovations that have been profiled at the various SolidWorks World conferences. This week's Tuesday Two covers to wind power winners that are getting notice.

Tuesday Two

Magenn has an innovative balloon wind power generator which goes by the name Mageen Air Rotor System (MARS). It floats far above the ground to take advantage of wind that is more reliable than ground based turbines. Here's an ancillary article in Design World on material used to make MARS.

Jeff Ray gives us an update on MicroWind Technologies which makes relatively small rooftop wind turbines called MicroWind Residential Turbine which will be able to produce 3 kW. They also have the MicroWind 300W which can be lamp post mounted.

Epoch-Fail

The Smart car that just isn't all that smart. It is not much bigger than a go cart, while only netting 41 MPG highway (which is worse than many real cars already on the market). Too much is sacrificed in both functionality and safety for no real gain; and don't get me started about the price for the "well equipped" version! For that, it recently ranked as the worse car of the 2000's by Cars.com, not to mention it wins this week's Epoch-Fail award!

Largest building ever built *discovered* in Egypt

If ancient descriptions are correct, and if the recent discovery is what some think it to be, the lost Labyrinth of Egypt may be at Hawara. This was a massive temple that was described by many ancient authors, such as Herodotus, to house 3000 rooms. The walls of each room were filled will paintings and hieroglyphs. Some have presumed this labyrinth housed the lost Hall of Records, dispite other theories that place it under the Great Sphinx of Giza. I'm not going to go on about this. Just check the links.

Ocean

Blue Dark Ocean Depths
Strange Living Treasures Hidden
Where The Monsters Dwell

13 and 13 coworker complaints and such

ThomasNet has had a blog. Apparently, it's been running in some fashion or other since 2000. Of course, back then maybe they didn't label it as a blog, but that's really what it was. There's a couple of articles that caught my attention recently.  (Original links no longer function, so please use the backup links.)

• 13 types of irritating coworkers (backup link)
• 13 Types of coworkers we like (backup link)

In these articles, David R. Butcher explores the best and worst traits in our coworkers (and ourselves) at work. His likes and dislikes may seem a bit arbitrary. He complains about the suck-ups in the first article, but lauds the jokers in his second. He makes the obvious observations regarding the positive coworker; yet in a sense of irony, he complains about the complainers. It's a fairly entertaining read.

Yet another Earth-world Found!

As technology and techniques in the hunt for terrestrial planets improves, we are finding that terrestrial planets seem to exist in a wide variety of star system types. In a presentation to the American Astronomical Society in St. Louis, MI on June 2, a team of astronomers stated that they used the Microlensing Observations in Astrophysics II telescope (New Zealand) to find a planet around a brown dwarf star. The planet is estimated as being about three times the mass of Earth.

The particular world discovered by the scientific team orbits a start about 300 light-years from our Solar System. It's orbit is likely as large as that of Venus around our Sun. According to current estimates, it most likely is made up ice and rock.

As more worlds are found, it seems to me that human understanding must accept that there is a very high likelihood that life exists beyond of Earth. There may come a day in our life times when such existence of life becomes completely undeniable.

Source: Astronomy Sept 2008 - Another super-Earth discovered

Oh my Bevie

Oh my Bevie
Find your way back to me
I've missed you
Bring back the happiness
Remember
Our care for each other
Oh my Bevie
Find your way back to me
Dear sweetie
You never leave my thoughts
My lost one
I'm here for you always
Oh my Bevie
Find your way back to me
Tender Love
Strange, so strong, yet fragile
Bring back
Love uncommon on Earth
Oh my Bevie,
Wondering
Through this life, yes I am
Living on
I do live my own life
Oh my Bevie
Find your way back to me
Memories
have of a life of their own
Longing here
for them renewed again
Oh my Bevie
Find your way back to me
Share times
We have lost to this gap
Healing now
Life goes on in tragedy
Oh my Bevie
Find your way back to me
Love Always

(circa 2001)

Communication with Alien Civilizations

SETI, whose job it is to find proof of alien civilizations, has yet to find any alien civilizations. The methods employed by SETI has so far focused on trying to receive messages via the EM spectrum for alien communication.

So far, SETI has been looking for messages from other alien civilizations in the form of "Anybody out there?" However, it may soon be looking for any signs of other alien civilizations by attempting "to eavesdrop on stray signs of intelligence leaked accidentally into space by other civilizations", says Steve Nadis in his Astronomy article titled Eavesdropping on E.T.: Could Changing Channels Tune Into Alien Civilizations?.

There is a quiet zone in the EM spectrum between 1 and 10 GHz. Fewer objects in the universe naturally transmit in that frequency range. If other alien civilizations know this, they may choose to intentionally transmit signals at that level. However, it may be easier to look for signals that alien civilizations naturally put out. The problem is that there is so much background noise at other frequencies, both from the Universe and Earth itself (our own civilization). Some scientists hope that a new radio-telescope coming on line in Australia called Murchison Wide-Field Array (MWA) will allow them to find anomalies that may be leaked transmissions of other alien civilizations. Though MWA is really meant to study the end of the Universe's Dark Ages (when stars began to form), it will also be able to find transient signals that may be signs that something else is out there.

Earth has been broadcasting its presence since the 1920's. Maybe another civilization has been doing the same for much longer? We will soon see.

Reference: Astronomy May 2008, Eavesdropping on E.T.: Could Changing Channels Tune Into Alien Civilizations?, by Steve Nadis

Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

Tuesday Two: Sponging up energy

Tuesday Two

Get nearly perpetual power with these little energy cells that can recharge by harvesting ambient energy, such as kinetic, electromagnetic, heat, radio frequency, and light. This may change everything from hand held devices to desktop computers.

In real life Star Trek technology news, there's a phrase (not phaser) translator called the Phraselator which will translate statements into one of several languages. It's one-way translation today, but with two of these, you just might be able to carry on a short conversation about the weather with just about anyone on the planet.

Epoch-Fail

To prepare you for your American Idol debut, the Perpetual Kid website (purveyer of many potential Epoch-Fail canidadates) has the Shower Mic Sponge.

Hiller Aviation Museum

I recently had a chance to visit the Hiller Aviation Museum. It's an interesting place. The museum is housed within a former industrial building.

In the main entrance hall, the visitor can view a sizable restoration shop with its menagerie of old equipment and tools. The shop is bigger than some machine shops. There are also many scaled airplane models dangling from the ceiling. Let's not forget the rather sizable souvenir shop. Yes, I bought the t-shirt. :)

The main viewing room is the entire right side of the building. It houses many full scale and scaled air machines, with some original airplanes mixed with replicas. Where there's space to fill, you'll find an airplane or parts thereof.

One of the more interesting facts promoted at this museum is that there where successful attempts at powered flight long before the Wright Brothers. The Herman Avitor Jr. (or just Avitor) was powered by a 1-hp steam engine that drove twin propellers. It was was the first successfully flown heavier-than-air aircraft to employ a three-axis control system. It was built in San Francisco, CA. In 1869 it took flight near the modern day SF Int'l Airport. Sometime after its first flight, the contraption was destroyed when it caught fire.

Another interesting exhibit was the Pepsi Skywriter, used by Pepsi to promote their product for a few decades starting in the late 1920's. I'm not sure if this is a replica, but it is interesting to see the old Pepsi logo and figure how long ago companies where using inventive new marketing techniques to promote their products.

For You

Flowers I present by love
for my baby, whom I adore

Run to me, my love, kiss me
and feel my heart beat for you

Lean your head on my shoulder
I am your support for life

Guide your heart to my harbor
I shall protect you from storms

Open your places hiding deep
and I will handle with care

Your dreams have haven in me
Our dreams we share as you sleep

These flowers represent all
of my expressions of love

For You


Copyright ©1999, 2001 & 2003 Matthew Lorono All rights reserved

Possible types of Alien Lifeforms (Part 5: Blue Plants?)

It has been sited by physicists that while photosynthesis on Earth generally involves green plants, a variety of plants of alternative colors may also utilize photosynthesis. The other colors might be preferred in places that receive a different mix of solar radiation than that received on Earth.

Plants on Earth are green because they contain chlorophyll. The chlorophyll is green because it absorbs mainly blue and red light in order to produce food for the plant via photosynthesis, while reflecting the green light frequency.

Scientists at NASA point out that if the stars for other planets were in a different state than our sun and if the light frequency that reached the planets' surface was different, then the plants would have also evolved a different type of photosynthetic pigment (other than chlorophyll). This pigment would be dedicated towards the different light frequencies received by the planet. This would cause plants to appear a different color from green, such as red and yellow.

According to recent studies, no photosynthetic plants would be blue-colored. This is because blue light provides some of the highest photosynthetic yields in the light spectrum. It is important for blue light to be absorbed rather than reflected. This is based on the physical quality of different frequencies of light produced by known types of stars.

One terrestrial example of energy conversion based on something other than ordinary light involves radiotrophic fungi that convert high energy gamma rays into useful energy using the melanin. (In most organisms melanin is used to protect the organism against ultraviolet and solar radiation.) Even still, ordinarily fungi derive their energy from decomposing other biomass, rather than by converting radiation into energy for itself.

It could even be possible for photosynthesis to occur using infrared light. In such an environment, plants may actually appear black.

It is fascinating to image the variations of life that are possible, even if life is based on the same fundamentals as our own.

Reference: Wikipedia article; Wikinews article; NASA - NASA Predicts Non-Green Plants on Other Planets; Dadachova, E; Bryan RA, Huang X, Moadel T, Schweitzer AD, et al. (2007). "Ionizing Radiation Changes the Electronic Properties of Melanin and Enhances the Growth of Melanized Fungi". PLoS ONE 2 (5): e457. doi:10.1371/journal.pone.0000457; Candace Lombardi "NASA: Plants on other planets not green". CNET, April 11, 2007; Julie Steenhuysen "New hue: Plants on other planets may be yellow, red". Reuters, April 11, 2007; Ker Than "Colorful Worlds: Plants on Other Planets Might Not Be Green". Space.com, April 11, 2007; “The Color of Plants on Other Worlds” by Nancy K. Kiang, Scientific American April 2008

Response
reddit

Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

Lost Love

My Quiet Warm Heart
Inside Tired and Resting
Building Morrow's Strength

Possible types of Alien Lifeforms (Part 4: Silicon Life)

A popular Sci-Fi topic is alternative forms of life. A common idea is that life could be based on silicon instead of carbon.

The idea is based on the fact that silicon has valence number of four. This means that silicon atoms can be arranged in rings and in long chains that may be useful to create structures upon which biological molecules could be built. However, there are many drawbacks that must be overcome for life to efficiently use silicon as its basis.

Silicon based lifeforms would not have organic molecules used within Terran life. DNA would not be the basis for such life. However, the silicon based molecules may not be stable without an added level of complexity because silicon has a larger atomic radius and mass than carbon. It also has more difficulty forming stable molecules, particularly where water is present.

Even still, it is a possibility. For some reason, many Sci-Fi depictions show silicon based life as being rocklike in appearance. I'm not sure where this idea comes from. It's a bit like assuming carbon based lifeforms look like a lump of coal. I have a feeling that if we do discover silicon based lifeforms, they may resemble us more than many expect.

Reference: Wikipedia article and “Are Aliens Among Us?” by Paul Davies, Scientific American December 2007

Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

Autumn-Gem film

I took Allie to something she's not done before, a screening of an independent film, at SCU. The film is called Autumn Gem and is done in the same style as many Biography or History Channel shows. The topic of the film was a late 19th Century Chinese heroine by the name of Qiu Jin. You can see me and Allie in the upper left corner of the room in the panoramic photo. From the looks of my face, I was apparently in the middle of chewing my gum (which is something I don't really do all that often, so this may actually be the first photo of me doing that).

From the movie's website:

Qiu Jin was a seminal leader in both the revolutionary movement and the struggle
for women’s emancipation.

Allie has never heard of Qiu Jin before that evening, as is the case for most Americans (even Chinese Americans who were born in Asia). For me, the film was an interesting exploration into Qiu Jin's role in the Chinese revolution at the turn of the 20th Century. Here's the promotional image from the previous showing.

The makers and supporters of the film hope to sell it to the History Channel or preferably to PBS. Though the film's scope is admirable, in my opinion it needs a bit more editing, production work and clean up before its ready for those venues. It was interesting to watch, but ran a bit long for the quantity of information presented. Even still, if someone is interested in the topic, or even just interested in supporting independent film makers, please check out the upcoming screening dates. They will be all over the country in a 24 day/16 city tour.

Tuesday Two: Robots and Bacteria

Tuesday Two

In robot news, Josh Lowensohn explores the Rovio, a $250 robot that acts like an internet controlled telepresence guard dog. Let's hope they never hook this thing up to Skynet. Terminator's primitive cousin has been born!
On the biotech front, the cleverly named Institute of Food Research made an announcement about genetically engineered bacteria that does what it is told to do just by eating a rare sugar called xylan. Sounds just tasty. I'll have two!

Epoch-Fail!

Tesla Motors has been trying to give themselves a lot of press. Their desperation lead them to submit a couple of cars to the British show Top Gear. Bad move! Well, let's be honest, an electric "sports" car that only has peak performance for a 100 mile radius before needing a 2 to ..umm 16 hour recharge? Well, Top Gear's review may not have been 100% fair, but they make some very important points. Here's the video.

Possible types of Alien Lifeforms (Part 3: Arsenic Life)

What if the basic molecules of life where completely different? Life on Earth needs water, carbon, nitrogen, hydrogen, oxygen, and phosphorous. This last one is of particular interest.

Phosphorous is not particularly abundant on Earth. Yet Terran life needs the element. A similar element that could replace phosphorous is arsenic. Of course, arsenic is poisonous to us. This is because it is so similar to phosphorous. It may be possible that life could have evolved on other worlds to use arsenic instead of phosphorous. This is because arsenic can do everything that phosphorous does (in the way of structural bonding and energy storage). It could also be used to drive metabolism. On such a world, phosphorous would be the poison because it would interfere with those functions, much as arsenic interferes with the functions of phosphorous in life on Earth.

Is it possible for lifeforms to be poisonous to each other because of their basic chemistry? Would it be dangerous for arsenic based lifeforms and phosphorous-based lifeforms to simply touch each other or even to life in the same space?

References: “Are Aliens Among Us?” by Paul Davies, Scientific American December 2007

Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

FOX "News" magically turns Republican into Democrats

TCorp has noticed something quite interesting about Fox "News" channel. They are appear to be intentionally labelling embarrassing Republicans as Democrats. Once is a typo, twice is a strange coincidence, but there are four times identified here from over a long period of time.









Hello, can anyone say Nineteen Eighty-Four
or Wag the Dog?

Epoch Fail (special edition for Fox "News")

Toebzilla

Rat Terriers are an interesting breed. They are smart, but independent. That means, they understand you, but take your directions more as suggestions than actual commands. So, our Rat Terrier is named Toebzilla for the fact that he can be a little terror that acts like Godzilla by often walking around on two paws as he terrorizes. Maybe that's where the word terrier comes from? He is adorable and loving.

He does look to us for approval, though its more a matter of watching us to see what he can get away with. Right now, he's sleeping on our couch on top of a quilted blanket which he has adopted as he bed. He did try to take this liberty without my permission, so I made him get off the couch and wait for permission to hop back on. Now that he's sleeping, he's not terrorizing anything.

Tuesday Two: Snap Cracke Pop

Word First

Welcome to the first day of Fall 2009. I have something called Tuesday Two on a professional technical website that I maintain. I will be reposted some of those here from time to time. These will include brief showcases of two noteworthy inventions (maybe more sometimes, maybe less). In addition, I may also highlight an epic fail invention. Hmm, I don't know about that word epic fail. It's too much en vogue right now and will likely not be used in a couple years. Let me make up my own derivative.

I will sometimes highlight an epoch-fail invention. That's likely a safe term that won't get over used by the likes of G4 and other "we are cool gadget geeks" media outlets. Epoch-fail also out-does the term epic fail because even an epic is only a short period when compared to geologic time frame of an epoch. Epoch-fail inventions will be (in my opinion, as always) failures that can be registered in terms of how long the dinosaurs roamed the Earth, or when we last had a comet (or was it an asteroid, or huge broken-down alien space ship) smack into the Yucatan Peninsula.

Also, it should be noted that by "invention", I also mean innovation, device, gadget, idea or any other unique real world or conceptual imagining. Normally, I will stick to recent news, but don't be surprized if I honor the axle or deride the idea that UFO's helped Egyptians build the Pyramids.

Tuesday Two

Kindle gets nod for living up to the hype. Recent study shows that it is indeed more environmentally friendly than paper books. This, combined with its new lower price should turn some green heads and open their pocket books.

Do dogs go to heaven? Regardless to one's beliefs, there is now a service available to take care of pets left behind once the Rapture happens. It's billed as,"The next best thing to pet salvation in a Post Rapture World"

Epoch-Fail

1. This week's first Epoch-Fail award goes to the beloved iPhone 3GS, based on reports from France that suggest it is exploding and cracking without warning. Yikes!
2. A second Epoch-Fail award goes to those who have been trying to link the good ol' meat and potatoes diet with bad things. Recent studies have not shown a link between meat and dairy products with breast cancer in women.
3. Yet a third Epoch-Fail award goes to Bank of America for not cashing the check of a man who was born with no arms because he was unable to provide a thumb print.
4. This week's final Epoch-Fail award again goes to Apple, but this one is directly granted to Steve Jobs for his alleged lie to the New York Times about why the new iPod Touch doesn't have a camera.

Addition of poetry

So, I experimented with an artsy blog for a few years now, and it's not really gone anywhere, so I'm moving over much of its content to Its Trouble. This is going to occur over time. Any further creative works will be included here, not there. There are already some poems on Its Trouble (click on the Poetry label to see all). Some of the poems that will be republished here are from a past time and represent past feelings. Some of those are more Stream of Consciousness and a finally polished poem. I'm adding all here without judgment or qualification beyond the statements I just made.

I don't know if I'm going to completely shutdown the other site or just leave it up for reference.

Santa Clara Forty-Niners

On June 2, 2009 in a televised Santa Clara City Council meeting, the Term Sheet for the potential 49ers football stadium was approved. The wheels of bureaucracy are in motion. The (hopefully) inevitable outcome is one step closer to being a reality. I don't know what the 49ers will be called when they move to Santa Clara, but they will be moving.

Sorry City of San Francisco. The real engine of the San Francisco Bay Area (Silicon Valley) is getting the prized possession that you took for granted for so long. The 49ers will be moving to the metropolitan area of the nation's 10th largest city (San Jose).

The 49ers will play their games in the heart of their fan base! Only 8% of session ticket holders currently live in San Francisco. It has been suggested that the majority of the 49er's session ticket holders are actually from Silicon Valley, including support from corporations.

Should their name be changed to Santa Clara 49ers, or even Silicon Valley Chips? I'm inclined to say no. I suggest they change their name to San Francisco Bay 49ers. This way they can continue the 49er traditions. Also, they can be said to represent the whole area while still sporting their famous SF logo.

It is my hope that the measure for public approval of the new 49er stadium will be on our ballots in 2010, and that the stadium can be completed for the 2014 session.

One of the bonuses to having a new, well designed stadium is that it will be a likely candidate to host the Super Bowl! If they finish the stadium soon enough, Santa Clara city may be the host city for the Super Bowl before 2020! Even the City of San Francisco will benefit from that, despite their own laziness.

The Drake Equation

Drake's Equation is an often quoted formula that is used to guesstimate the number of extraterrestrial civilizations that might be in existence at any one time. It combines eight (often arbitrary) elements from star formation to stages in life development. From this is derived a supposed number that represents how many advanced civilizations might exist in our galaxy right now.

These elements are:

• Average rate of star formation in our galaxy (R*)


• Fraction of those stars that have planets (f_p)


• Average number of planets that potentially support life per star that has planets (n_e)


• Fraction of those planets that actually develop life at some point (f_l)


• Fraction of those planets that then develops intelligent life (f_i)


• Fraction of those civilizations that develop technology that can and does send detectable signals of their existence into space (f_c)


• And, the length of time such civilizations remain detectable via their transmissions (L)

The formula this looks something like N = R* x f_p x n_e x f_l x f_i x f_c x L.

Here's an example of how to use the formula based on estimates of values for its variables.

• R* = 10/year (10 stars formed per year, on the average over the life of the galaxy)


• f_p = 0.5 (half of all stars formed will have planets)


• n_e = 2 (stars with planets will have 2 planets capable of supporting life)


• f_l = 1 (100% of these planets will develop life)


• f_i = 0.01 (1% of which will be intelligent life)


• f_c = 0.01 (1% of which will be able to communicate)


• L = 10,000 years (which will last 10,000 years)

Drake's values give N= 10 × 0.5 × 2 × 1 × 0.01 × 0.01 × 10,000 = 10 civilizations with which there is possibility for us to currently communicate. This can be useful to provide rough guests as to the chances of how successful we can expect to be in our hunt for E.T.'s with programs like SETI.  SETI has a lot of equipment pointed into space looking for signals.

However, the formula is so full of guests, it may not have any value at all. In fact, even the elements of the formula are themselves guests. For example, one might question why star formation rate has any impact on how many planets may form with life. Also, given more modern understandings of our galaxy, such as the Rare Earth Hypothesis, many other factors may be more important that those used the Drake Equation. Additionally, there is a problem that many stars have been discovered to have Hot Jupiters, which would destroy any terrestrial worlds, thus preventing the opportunity for life to develop in that star system. Even worse, the question is raised about our own arrogance in the assumption that all life would resemble us enough to communicate in the same forms as we do.

It appears now that the Drake Equation is actually pseudo-science. It is not based on any hypothesis. It is nothing more than a series of guests. It does not produce anything that is testable. In fact, it's author, Dr. Frank Drake, didn't originally intend for this formula to be used in the way that is has been. It was meant to be an organizational tool for the discussion about intelligent life in the Universe specifically for a gathering called The Green Bank Meeting in 1960, so named for its location at the Green Bank Telescope.

Right now, it seems the best way to know how common life is in our galaxy is to explore it. The Drake Equation is more of a mathematical toy than an actual useful formula.

California Nature (minor tweak)

Your journey roads herald adventure,
Impelling me to climb your cloven heights,
And romp carelessly,
as aureate poppy fields beckon.

Sun-kissed waters bounce along your shoreline.
They entice me to surf the crashing calm waves.

Canopy-enveloped valleys thrive with floral scents
That draw my ingression, but I forestall.

Instead I caper like Racetrack Playa’s sailing stones,
Which tickle your basin by some unseen will.

I endeavor to hike your proud hills,
And find places to gaze lostly into lakes full with sky.

Vineyard nectar overflows like sweet sweat,
To spur my soul’s arousal as I partake.
Your boundless attributes gratify my wanderlust,
And allure me to appease your nature.

"In the Hopper"

As far as I can remember, the very first (and only) time I've ever heard the phrase "in the hopper" occurred this week.  It was such a strange phrase; I had to look it up.  It turns out that the person who introduced me to this phrase used it completely incorrectly.  The statement from that person made to me was similar to "let's keep this in the hopper for awhile."  The inference is that something is being put on hold for a particular time frame.  However, "in the hopper" actually has a meaning that is quite the opposite.  When I looked it up on http://www.dictionary.com, I found that it refers to something being introduced or something about to happen or be realized.  Now that I've learned a new phrase, I just might start using it (correctly, of course).  One might say that my use of "in the hopper" is now in the hopper.

Possible type of Alien Lifeforms (Part 2: Exotic Amino Acids)

For the most part, life on Earth uses the same set of nucleotides (amino acids) to form the basis of their DNA. In all, almost all known life uses 20 particular amino acids. These are often classified by their bases as A (adenine), C (cytosine), G (guanine) and T (thymine). These are the basic building blocks of DNA. They are also used to build proteins. Of course, from a certain point of view, DNA is just a really long protein.

How DNA uses these amino acids is described by Paul Davies in his article Are Aliens among Us? published in Scientific American, Dec 2007. He states, "The genetic code is based on triplets of nucleotides, with different triplets spelling out the names of different amino acids. The sequence of triples in a gene dictates the sequence of amino acids that must be strung together to build a particular protein."

Alien lifeforms may use exotic amino acids that are far different than the ones used by life on Earth. It is possible that the set of amino acids we use may not even appear on other worlds. Evidence by scientific study suggests that there are many other forms of amino acids that may be useful (or at least available) for other types of life. Evidence of exotic amino acids on other worlds has come from meteorites. Also, others have been synthesized in the lab.

Other lifeforms from other worlds may be completely different from us while still using the same basic DNA structure we use. A question remains, would life formed by exotic amino acids be all that much different than Terran life in appearance? Would the exotic amino acids lead life to evolve along completely different paths that we as yet have not conceived?

Reference: “Are Aliens Among Us?” by Paul Davies, Scientific American December 2007

Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

What are the odds of Humaniods evolving again?

Humans take human-level intelligence for granted.  So much so, that our humanoid form seems to prevail any of our notions of intelligent life on other worlds.  Images of Greys, EBENs and other aliens have the same general plane symmetry body plan as us, with two arms, legs, a torso, a head, symmetric features, two eyes, mouth, nose holes, brain, etc.  But what are the chances of life evolving in this way again, either on another world or evolving again here on Earth after humans are gone?

The major problem with this is that life goes through a great number of changes as it evolves over time. At each point, a very specific set of criteria sets the stage for what is eventual deemed successful adaption and what comes to the end of the line. Given what little we know right now, it seems unlikely that changes at each step will follow the same path twice in different ecosystems and different worlds.

Sure, we do have convergent evolution, where multiple species evolve the same abilities in separate epochs and ecosystems.  But is human-level intelligence something that will happen naturally again?  Is having two legs, two arm, a face, etc, something that happens naturally as a matter functionality?  Could there be intelligence as advanced as ours, but in a completely different form?

We don't know anything concrete regarding evolution of life on the cosmic scale.   For years it was assumed that the form of our Solar System was common, and that is what makes life elsewhere likely.  We exist; there's nothing special about us; therefore life like us exists elsewhere.  This is a bit silly since we have no data to support that.   In fact, when we started finding planets in other star systems, the Solar System model proved to be quite unusual.

Maybe our understanding of evolution is still incomplete at the cosmic scale.  Maybe traits we see in Terran life are common on other worlds simply because these adaptions are the most successful in general, regardless of specific ecosystems that may exist.  Before people start declaring this or that is unlikely, let's collect data and find out.

Start sending probes to other star systems and poke about.  The probes will take a long time to get where they're going, but so what.   Unless we humans kill ourselves off (or nature does it for us), our posterity should be around to receive the results of our efforts, so that they can figure this out with actual evidence, instead of relying on unscientific guesses (see Drake's Equation).

Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

Possible types of Alien Lifeforms (Part 1: Mirror Life)

On Earth, life uses what is called right-handed DNA. Right-handed DNA uses left-handed amino acids, sometimes described as homochiral. The fact that all lifeforms on Earth use Right-handed DNA suggests that all life here is descendant from a common group of ancestors.

Why does the difference matter? If single cell members of mirror life (with left-handed DNA) are placed in a nutrient broth consisting of only left-handed amino acids, the lifeforms will not be able to thrive. The same is true of the reverse.

Mirror life is a type of lifeform that uses the same type of DNA structure, but where the DNA is left-handed. This type of life, in turn, used right-handed amino acids.

The possibly that life on other worlds may be mirror life is very exciting. If found, it would lend tremendous evidence that life is possible in other forms as well.

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Reference: "Are Aliens Among Us?" by Paul Davies, Scientific American December 2007

Related articles

• Video: What Would Trees Look Like On Other Planets?
• Predictions of Evolution of Alien Life
• Communicaion with Alien Civilizations
• Odds of Humaniods Evolving again
• Part 5: Blue Plants
• Part 4: Silicon Life
• Part 3: Arsenic Life
• Part 2: Exotic Amino Acids
• Part 1: Mirror Life

G8 Meet and Ride Aug 2009

Here are the photos from last weekend's San Francisco G8 Meet and Ride.

Here's a sample:

"Mommy, what's a keyboard"

Even with the explosion of the QWERTY keyboard being plastered on to almost every type of electronic device these days, I’m going to go out on a limb here and now to declare that the QWERTY keyboard will be obsolete within my lifetime. This prediction is not limited to the keyboard device I’m using to type this article. I’m referring to any type of letter based data input that takes the form of QWERTY. The beginning of the end for QWERTY is not the Dvorak keyboard. Nor is it speak [mis]recognition technology. In my view, the signal of the end is predictive text input.

Predictive text input is where a person enters there first couple of letters and then is presented with a word or list of words that most likely match the author’s intent. The author keeps typing until the correct word appears, then accepts the entry. On a cell phone number pad, each number represents 3 or 4 letters. Predictive test input can quickly find the desired word, often with the push of only a couple of numbers. In addition, more sophisticated systems will learn which words are most commonly used by the author and present those as first choices to the author.

With predictive text input, a person can drastically increase their typing capabilities. I’ve seen individuals text with cell phones numeric pads faster than what is even possible on a smartphone QWERTY keyboard. In fact, I would suggest that average wpm speeds of numeric pad texters with predictive text input even exceeds that of experienced typists on traditional full size keyboard devices. That’s not hyperbole, and I’m not kidding. The QWERTY keyboard’s current Golden Age will be over soon enough.