Monday, May 28, 2007

Future of The Universe

Empty your mind. We’re about to take a BIG leap into the future. Not just a lousy few billions of years, but 10 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 years!

One ‘googol’ years, is the official word for that number. The problem is that the Universe gets bigger and cooler. Ever since the Big Bang, it expands, much like an expanding ball of fire after an explosion. Right now, the Universe is still young. It has these cute stars and twinkling galaxies. But in the long run, that will change. Slowly but inevitably, the Universe will empty itself.

First, the galaxies will fly out of sight, beyond the horizon of what we can possibly see. Next, the stars in our own galaxy will burn out, one after the other. The only thing that will remain, is a dull graveyard of cold planets, dead suns and black holes. In about one hundred trillion years, the Milky Way will go black, astronomers expect.

And eventually, even this graveyard decays. One after the other, the dead stars and planets are eaten by black holes, or kicked out of the Milky Way by collisions. Astronomers expect that in one hundred to one thousand billion billion years, our galaxy has dissolved completely.

Time goes on. After a while (more trillions of years) something else will kick in. You’ll notice that even the very stuff nature is made of, isn’t stable. A proton, the particle you’ll find in the core of atoms, has an average lifetime of 100 000 000 000 000 000 000 000 000 000 000 000 years. Wait long enough, and it will suddenly vanish. Poof, gone. The same goes for light particles, the so-called ‘photons’. They’re expected to last a few zero’s longer, but in the end, they too will kick the bucket, one after the other. Isn’t that just bizarre? The light will go out, literally.

The last thing that survives, are the black holes. But in the end, they too will vanish. They will evaporate in a puff of radiation.

So there we are, at our unimaginable one googol years. Finally, the Universe is totally and utterly empty. You won’t see any light or spot any planet -- in fact, you won’t even find the tiniest speck of dust. The Universe has sterilized itself. All there is left, is emptiness, and darkness. Total oblivion. And worst of all: there’s nothing we can do to stop it. We can build fancy machines or futuristic devices all we like -- but in the end, they’ll all get kicked out of existence, when the matter they are made of simply vanishes.

So there you have it: infinity. Booooring, we must add.

But don’t sob. There’s an upside.

As the quadrillions of years pass by, something very odd should happen. In eternity, even the rarest events get a chance to occur. Weird, bizarre phenomena that only happen once in a zillion years or so, become quite normal.

For example: the nothingness should yield a few surprises. Already, physicists know that in a vacuum, there is sometimes tiny little energy ‘blobs’. Little, random fluctuations of the so-called ‘quantum vacuum’. Out of nowhere, tiny particles pop in and out of existence. But theory predicts that on very, VERY rare occasions, the fluctuations should be a bit larger. Out of nowhere, an entire atom might appear! Or hey, the vacuum may even spit out a few of them!

Think of it like the static on TV. Wait long enough, and out of the random fuzz, a recognizable image might materialize. Wait REALLY long, and one day a complete episode of The Bold And The Beautiful should accidentally show up!

In the Universe, this should give some really surprising results. With eternity at hand, the vacuum should begin to yield all kinds of objects. Incoherent lumps of random garbage, most of the time. But on very, very rare occasions, you’ll see other objects popping into existence. The Eiffel tower. A purple camel. A golden parking garage filled with chocolate Cadillacs. Napoleon Bonaparte sitting next to Mike Tyson on top of a stack of comic books. As the googols of years pass by, it’s all there.

In the VERY, VERY, VERY long run, the vacuum will even belch up complete planets, and beautiful stars, burning and all. Theoretically the vacuum should even churn out a complete solar system one day, identical to ours, with a planet Earth inhabited by people. "In an infinite amount of time, one day, I will reappear", as physicist Katherine Freese of Michigan University once put it. "An crazy thought, but true."

One day the black nothingness should even produce a new Big Bang. Admittedly, we’ll have wait really long for it to happen. Researchers of the University of Chicago once tried to calculate it. And according to their best estimates, it should happen somewhere over the next 1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 years. That’s a one with 1056 zero’s. You can count them, if you like.

Thursday, May 10, 2007

You might be a scientist

If the only jokes you receive are through e-mail.

If your idea of good interpersonal communication means getting the decimal point in the right place.

If you have used coat hangers and duct tape for something other than hanging coats and taping ducts.

If your ideal evening consists of fast-forwarding through the latest sci-fi movie looking for technical inaccuracies.

If you have "Dilbert" comics displayed anywhere in your work area.

If you carry on a one-hour debate over the expected results of a test that actually takes five minutes to run.

If a team of you and your co-workers have set out to modify the antenna on the radio in your work area for better reception.

If you ever burned down the gymnasium with your Science Fair project.

If you have never backed-up your hard drive.

If the salespeople at Circuit City can't answer any of your questions.

If you still own a slide rule and you know how to work it.

If you rotate your screen savers more frequently than your automobile tires.

If your I.Q. number is bigger than your weight.

If the microphone or visual aids at a meeting don't work and you rush up to the front to fix it.

If you can remember 7 computer passwords but not your anniversary.

If you have ever owned a calculator with no equal key and know what RPN stands for.

If you can type 70 words a minute but can't read your own handwriting.

If you have more friends on the Internet than in real life.

If you think that when people around you yawn, it's because they didn't get enough sleep.

If your three year old son asks why the sky is blue and you try to explain atmospheric absorption theory.

Tuesday, May 8, 2007

Acid Poem

"My brother was a chemist,
 He isn't anymore,
 What he thoughy was H2O,
 Was H2SO4."

Monday, May 7, 2007

The Researcher Mind

The researcher perhaps have they own language to express their point, so that 'the researcher dictionary' are needed.

"It has long been known..."

I didn't look up the original references.

"A reasonable trend is evident..."

These data are practically meaningless.

"Of great theoretical and practical importance..."

It is interesting to me.

"While it has not been possible to provide definite anwers to these questions..."

An unsuccessful experiment, but I still hope to get it published.

"Three of the data sets were chosen for detailed study..."

The results of the others didn't match my conclusions.

"Typical results are shown..."

The best results are shown.

"These results will be shown in a subsequent report..."

Haven't gotten around to it.

"The most reliable results are those obtained by Jones..."

He was my graduate student.

"It is believed that..."

I think...

"It is generally believed that..."

A couple of other guys think so, too.

"Much more work is needed before a complete understanding of the phenomenon can be reached."

I don't understand it.

"This result is correct within an order of magnitude..."

It is wrong.

Experiment

One day a researcher is doing an experiment with frogs. He cuts one of the frog's legs off. He ordered the frog to jump, and it did. Then he cut off one of the frog's arms off. He then ordered the frog to jump again, and it did as it was told. He continued to do this until he had cut all of the frog's appendages off. He then ordered the frog to jump, and the frog couldn't. The rescearcher then wrote in his notes: when I cut all of a frog's legs off it becomes deaf.

Sunday, May 6, 2007

Beliefs about deity

Beliefs about deity cover a wide range, including:

Agnosticism: having reached no conclusion whether God exists. (See Agnosticism)

Animism. The belief that all entities have life force, a soul or mind. For example, rocks, trees and mountains have an awareness of their surroundings: (e.g. Native aboriginal religions).

Atheism:

  • However, American Atheists, the largest group of Atheists in the U.S. define Atheism as having no belief in God. A newborn would not be considered an Atheist within the dictionary definition, but would be an Atheist according to the American Atheists.

Deism: The belief that God exists, but is remote, unknowable and uninvolved. They believe that God created the universe, set it going, left, but has not taken an active interest in it since. This was a popular belief among intellectuals during and after the American revolution. It shows up in the U.S. Declaration of Independence, and its references to to "Nature's God," and "Creator." It is a rapidly growing believe today.

Duotheism (a.k.a. Bitheism): belief in a dual divinity: (e.g. Wicca and Zoroastrianism). In the case of Wicca, one deity is female, the other male; in Zoroastrianism one is all good while the other is all evil.

Henotheism. belief in many deities of which only one is the supreme deity. This may involve:

One chief God and multiple gods and goddesses of lesser power and importance. Ancient Greek and Roman religions were of this type.

One supreme God, and multiple gods and goddesses who are all simply manifestations or aspects of the supreme God. Hinduism is one example; they recognize Brahman as the single deity. Some Wiccans believe in a single deity about which they know little. They call the deity "The One" or "The All." They recognize the God and Goddess as the male and female aspects of that supreme deity.

One supreme God who rules over a country, and many other gods and goddesses who have similar jurisdiction over other territories. Liberal theologians believe that the ancient Israelites in the early years of the Hebrew nation were henotheists. They worshipped Jehovah as the supreme God over Israel, but recognized the existence of Baal and other deities who ruled over other tribes. The monotheistic concept of "Yahweh only" came later.

Monism: The belief that what people perceive as deity, humanity and the rest of the universe is in fact all of one substance - that divisions among the body, mind, flesh, spirit, material, physical are not real. All are simply aspects of one being.

Monotheism: The belief in a single God. Examples include Islam, Judaism, and Sikhism). Within Christianity, most denominations consider themselves to be monotheistic, even though they teach the existence of three separate persons in the Trinity. Some believe that religiously inspired violence is often found among monotheists.

Panentheism: The belief that the entire universe -- substances, forces and laws -- is God; the universe is God's body. God transcends the universe as well. (e.g. some components of New Age belief).

Pantheism: The belief that every existing entity (humans, animals, etc.) together, is a part of God. They do not see God as having a personality, the ability to make decisions, etc. Rather, God is the very spiritual essence of the entire universe.

Polytheism: belief in many Gods and Goddesses: (e.g. various Neopagan religions. Hinduism is often looked upon in the west as a polytheistic religion).

Trinity: belief in a single deity who has three aspects (e.g. historical Christianity, whose members generally believe in Trinity formed by a Father, Son and Holy Spirit who they view as being a single entity). Christians often look upon God as being omniscient, omnipotent, omnipresent and omnibeneficient (all knowing, all powerful, all present and all good.) Some liberal Christians believe that such a list of attributes is logically contradictory.

Wednesday, May 2, 2007

A New Earth-like Planet; "Aliens home..??"

'Is there life anywhere else?'

Astronomers have discovered the most Earth-like exoplanet yet. The planet, the smallest yet discovered, orbits the red dwarf Gliese 581 at a distance one fourteenth of that from Earth to the sun; its year is just 13 days long. However, because the star is so much cooler and less luminous than our own sun, the so-called habitable zone, where planets can carry liquid water, is much nearer the star. As we know, liquid water is critical to life. Moreover, its radius should be only 1.5 times the Earth's radius, and models predict that the planet should be either rocky - like our Earth - or covered with oceans. Scientists made the discovery using the Eso 3.6m Telescope in Chile.

The planet orbits the faint star Gliese 581, which is 20.5 light-years away in the constellation Libra. Gliese 581 c was identified at the European Southern Observatory (Eso) facility at La Silla in the Atacama Desert. The team making the discoveries used the HARPS (High Accuracy Radial Velocity for Planetary Searcher), perhaps the most precise spectrograph in the world. It can spot signals - variations in the velocity of a star - that fall far below the "noise" threshold of most spectrographs. The instrument can measure tiny changes in the velocity of a star as it experiences the gravitational tug of a nearby planet. Professor Glenn White at the Rutherford Appleton Laboratory is helping to develop the European Space Agency's Darwin mission, which will scan the nearby Universe, looking for signs of life on Earth-like planets.