Showing posts with label pseudo science. Show all posts
Showing posts with label pseudo science. Show all posts

Saturday, November 20, 2010

Astrology - Does it really work?

This is an article that I wrote during my early days of skepticism.

Introduction

From the early days of civilization, humans have tried to make sense of the world around them. We have studied the skies and observed that planets and stars follow a predictable path. In fact, Astronomy was one the earliest sciences we had developed. Astrology was an offshoot of Astronomy of the old days. It was an attempt at mapping the predictability of paths of celestial
objects to predictability of life.

The objective of this article is to see how relevant Astrology is in today’s world. We have to ask ourselves “Does Astrology really work?”. It is an important question as a lot of people take decisions based on Astrology and this effects their lives as well as others lives. We will take a look at some of the basic tenets of Astrology and see how valid they are.

The Constellations

As observed from the Earth, the Sun traces on orbit around the Earth in the sky during the course of an year. This orbit is called the Ecliptic. The Moon and the other planets appear on or nearby to the ecliptic. It is nearly a circle and can be divided into twelve 30°arcs, making a total of 360°. Each part is named after a constellation that appears against the ecliptic. In Astrology, these twelve parts of the ecliptic are the basis for the Zodiac. Astrology claims that the fate of an individual can be told from the position of the Sun on the ecliptic at the time of the individual’s birth.

Apart from the Zodiac, Astrology also considers the Nakshatras. They are the stars in the constellations of the Zodiac over which the Moon passes by at the beginning of the day. On an average the Moon completes a revolution around the Earth every 27 days. As such there are 27 Nakshatras. Like the Zodiac, the Nakshatra at the time of a person’s birth is supposed to have an impact on his/her life.

Though Astrology states that life can be predicted based on the Zodiac and the Nakshatras, it doesn’t explain how the Sun’s or Moon’s position in the Sky actually affects life. The Sun has an obvious influence on Earth; it is the energy source for many processes and most life forms derive energy from the Sun. But Astrology doesn’t explain in what way the position of Sun determines an individuals life. It merely states what will happen. Many astrologers use terms like “cosmic energy” and “quantum disturbances” to explain Astrology, but the explanations are vague and are not quantifiable. A statement like “The Earth is big” may seem obvious, but it is vague. It doesn’t quantify “big” – big as compared to what? Is it bigger than the Moon? the Sun? Jupiter? If it is big, by what factor?

Astrology considers only those constellations which can be seen on the ecliptic. It ignores the other constellations. When seen from outside the Earth and outside of the plane of the ecliptic, the Earth itself passes through numerous constellations which are not on the ecliptic. If the combination of planet-constellation can have an effect on life, it is reasonable to assume that the Earth will have an greater or an equal effect, if not less. That Astrology does not consider this possibility suggests that at the time Astrology was being developed, Earth was thought to be stationary and all the other objects were moving around the Earth.

Planetary Influences

Astrology lists the following celestial objects, the Navagrahas, as having an influence on day-to-day life:

Astrological Name Astronomical Name
Surya Sun
Chandra Moon
Mangala Mars
Budha Mercury
Brihaspati Jupiter
Shukra Venus
Shani Saturn
Rahu North lunar node
Ketu South lunar node

Of the given nine Grahas, Rahu and Ketu are not celestial objects. They were believed to be demons who “ate” the Sun and the Moon causing Solar and Lunar eclipses. Today we know that eclipses happen at the lunar nodes. A lunar node is the point at which the Moon’s orbit crosses the ecliptic. For an eclipse to occur, the Sun, Earth and the Moon should lie in the same plane which can happen only when the Moon’s orbit intersects with the ecliptic. The rest of the Grahas are visible to the naked eye. As such astrology does not consider other objects of the Solar system which are not visible except with the aid of a telescope:
  • the remaining planets – Uranus and Neptune. Uranus’ mass is around 14 times that of the Earth and Neptune’s is around 17 times.
  • the sizeable moons of Jupiter and Saturn. For example, Jupiter' moons – Io, Ganymede and Callisto and Saturn’s moon Titan are larger than the Earth’s moon.
Name % of Moon’s Diameter % of Moon’s Mass
Io 105 120
Ganymede 150 200
Callisto 140 150
Titan 150 180
  • the Asteroid Belt between Mars and Jupiter. Four of the asteroids – Ceres, 4 Vesta, 2 Pallas, and 10 Hygiea have diameters more than 400 km. Ceres, the largest asteroid, has a diameter of about 950 km and can be considered a dwarf planet (Moon’s diameter is around 3474 km).
  • the Kuiper belt which includes Pluto and extends outward from the orbit of Neptune for a distance of about 25 AU (1 Astronomical Unit = distance of Earth from the Sun = 149.60 × 106 km).
  • the comets which orbit the Sun outside the Kuiper Belt.

Originally Grahas were considered as deities who influence human life. Currently many astrologers try to explain the planetary influences in terms of “energy waves” which affects the human body. Again, as seen in the previous section, the explanations are vague. For example, they don’t explain effects of phenomenon like Sun spots. The Sun spot activity increases and decreases roughly following a eleven year cycle. When it is at the maximum, the Sun releases bursts of high energy radiation strong enough to disrupt radio communications on Earth. No where in Astrology is this phenomenon mentioned.

Astrology also ignores the the omnipresent force of Earth’s magnetism. It plays a vital role in deflecting charged particles emitted by the Sun away from the Earth. And the Earth’s magnetic field is not constant. There are local variations and during high Sun spot activity periods, it is severely deformed due to the increased flux of charged particles. Note that magnetic fields only deflect electric charges. They have no effect on electromagnetic waves.

Magnetosphere
Image Source: Wikimedia
Even if we were to ignore these phenomenon and still assert that energy of other planets and stars influence us, it is trivial to show that, in terms of the four fundamental forces of Nature – strong nuclear force, weak nuclear force, electromagnetism and gravity, objects on Earth itself can have more effect on energy fields than far away planets and stars. The strong and weak nuclear forces make sense only within an atom’s nucleus. Gravity decreases as the square of distance between objects. So if an object is brought very close to a human body, its gravity will outweigh the gravity of other celestial bodies. Like gravity, magnetic and electric fields also decrease as the square of distance. If there is any other kind of force which effects us as profoundly as Astrology claims that celestial objects effect us, it would be trivial to detect and measure such a force. So far, outside of the four fundamental forces, nothing else has been found.

Also, not enough importance is given to the Sun in Astrology. It accounts for 99.8% of the mass of the Solar system, produces about 3.83 × 1026 joules of energy per second (in comparison the Nagasaki atomic bomb produced a total energy of about 8.78 × 1013 joules), radiates in a wide range of the electromagnetic spectrum and ejects high energy charged particles. It has a much greater influence on Earth than any other object in the Solar system and when compared to it, the effects of other stars are minuscule. Even if we consider a billion stars as a whole, the effect of them is still small when compared to the Sun. The other stars are too far away to have a sizable effect.

Human Psychology

In 1948 a psychologist named Bertram R. Forer conducted an experiment with his students. He gave the students a questionnaire and said that based on the answers given, he will do a personality analysis for each student individually. After the students got their personality analysis, Forer asked them to rate how accurate the analysis was. On an average, the students rated it as being 85% accurate.

In reality what Forer did was, he gave all the students identical copies of the same analysis. The analysis itself was vague and described only general positive personal traits. This experiment shows that humans tend to believe persons in authoritative positions (the students trusted their professor to do an accurate analysis) and believe in good/encouraging things said about them. If a person were intially told that Astrology works by a trustworthy person, and if Astrology predicts some general matters about his/her life, the person may end up in believing that Astrology does work.

Also, humans tend to remember good things and try to forget bad experiences. So even if Astrology predicts a set events and only a few of them come true, the predictions about the events which did not come true are ignored. Only the events which came true will be remembered and it will bolster the belief that Astrology works. Note that Astrology never makes specific predictions. For example, it cannot say what a person will be doing on particular date and time, say, 10 years into the future. It can only make general predictions like “You are going through a rough patch. But after 6 months time, you will come across fortune”. The person may come out of the rough situation before 6 months. In that case, Astrology has failed. Something has happened before it was supposed to happen. But the person will only remember that Astrology predicted that his/her situation will get better and not the fact that the situation got better before the time as predicted by Astrology.

There is also another way in which Astrology may seem like it works. A person may subconsciously take decisions in such a manner that events predicted by Astrology come true. In fact, in double blind tests (the astrologer doesn’t know about the person whose fate is being predicted and the person doesn’t know what the astrologer has predicted), Astrology performs the same as guessing (accuracy rate of around 50%). But, as seen earlier, even if a few predictions come true, a person may believe that Astrology works.

A very important consequence of living life strictly according to Astrology is that it makes a person’s life easy to predict. For example, many people are named according to their birth Nakshatra. If Astrology deems that a person will succeed as an musician, then that person will persue a career in music. Important occasions in life – like starting a business are planned on days certified by Astrology as being good. Spouses are chosen based on horoscopes. Just by knowing a person’s date and time of birth, one can predict his/her name, occupation, spouse’s name and any other event which the person has performed based on Astrology.

Finally, one aspect which tremendously helps Astrology is that humans are credulous by nature. This is a trait which has some evolutionary advantages. If a person who is living in the wild, sees a yellow patch with black stripes in some distance with an unclear shape, the best survival strategy for that person is to assume that the yellow patch is a tiger, and run away from it. But if the person were to go near the yellow patch to investigate whether it really is a tiger or not, he may get killed if it is indeed a tiger. In the first case, where the person chooses to run away, there is no penalty for making a wrong decision where the yellow patch isn’t a tiger. But in the second case there can be a penalty – death. This kind of a selection pressure has caused Nature to make the human mind infer patterns even when there is little data. Sometimes, it is better to take a decision even if there is insufficient data, than to wait for more data. But there are cases where this process can be bad – where making the wrong decision has a penalty for all cases.

It is tempting to see a pattern between paths of celestial objects and life. The celestial objects must exist for a reason and that reason is to govern our lives. But there is no evidence that celestial objects influence human life in the way that Astrology says they do. The effects are not observable and cannot be verified. Even if the celestial objects influence life, Astrology uses insufficient data as we have seen in the previous sections. Either way, acting on insufficient/wrong data can be dangerous. For example, it may make a person choose a bad career option or create a false hope where there is none. Unlike the tiger case seen earlier, making the wrong decision here can have a penalty.

Conclusion

Astrology was based on our understanding of Nature around 2000-3000 years ago. Compared to today, that understanding was lacking in many areas. The best evidence for this is that Astrology does not consider celestial objects which are not visible to the naked eyes. Much of the apparent efficacy of Astrology can be explained in terms of human psychology. Under close scrutiny Astrology fails.

Friday, September 17, 2010

Rama’s Bridge On The Moon

Whenever science finds something interesting, it serves as a proof of the greatness of the grand, glorious Indian civilization. It is a known fact that the ancient scriptures have all the answers. It’s just a matter of time before somebody else discovers them.

Last week one such discovery was made which proves again that Rama existed and that he is supreme. In addition to Rama’s bridge here on Earth, another Rama’s bridge was found on the Moon:


Here are the facts concerning this discovery:
  1. It was made by NASA who have also proved the existence of Rama’s bridge on Earth.
  2. The photo clearly shows a bridge that could have only been built by monkey-human hybrids and not some natural phenomenon.
  3. Ramayan provides incontrovertible proof that space travel was known at that time. Hanuman was a master of this as he had travelled to the Sun and ate it when he was young.
This finding is a paradigm shift. All this while it was thought that Americans were the first to step foot on the Moon, but that picture proves that Rama and his army of monkey-human hybrids were already there at least 1.296 million years ago (as Treta Yuga ended 1.296 mya). If Rama could go to the Moon, other great divine personalities too might have gone there!

This also means that the Moon belongs to Indians. Americans have un-dharmically trampled upon our property. We need to organize another rath yatra and teach those mlecchas a lesson.

Tuesday, August 31, 2010

A Pseudo-scientific Case For Vegetarianism

Vegetarianism is a lifestyle choice and I respect that. There are a variety of reasons given for being a vegetarian, like empathy for animals. But there are some vegetarians who use religion to justify their choice and argue that it is a superior choice which everyone should follow. Had there been some rational basis in their argument, I could concede their argument is sound. But predictably, religious vegetarianism is based on irrational ideas. It makes copious use of pseudoscience.

"You are what you eat"

That is one common premise of religious vegetarianism. Sites like these give a good explanation for that premise. To sum it up, the human body is composed of different levels of energy, with the mind and consciousness having the highest energy level. Different food sources have different energy levels and effect the body differently. Somehow meat has a negative energy level and affects that body negatively. Vegetables and fruits have optimum energy levels that help the mind vibrate at maximum potential.

There are other similar forms of justifications of vegetarianism, but central to all of them are energy and vibrations of food. Now onto why such justifications are plain stupid.

Retard Arguments

Energy is a word that has been raped through all of its orifices by pseudoscience peddlers (I'll abbreviate them as PPs). They have no basic understanding of how energy works, but pepper their arguments with it.

The human body gets it fix of energy by way of chemicals like carbohydrates, fats and proteins. Those chemicals are broken down in our cells and release chemical energy. It is that energy which drives the human body and not things as energy levels or vibrations (whatever the crap they mean in a pseudo-scientific context. Pseudoscience rarely gives precise definitions of terms).

Also, the human body doesn't care what the sources of those chemicals are - vegetables, fruits, leaves or meat. There's a reason why humans are omnivores.

Willful Ignorance

Processes of life are complex to understand. It requires knowledge of physics, chemistry and biology and considerable investment of time. PPs can't be expected to put in that kind of effort when there are people to be hoodwinked. They have an easy way out. They use fictional ideas of energy levels and vibrations to explain life. When using fiction, you are not restricted by those pesky laws of the Universe. Anything goes!

Ancient Nonsense

A chemical molecule is the same regardless of whether it comes from a plant source or animal source. That is fact which was unknown to the authors of ancient texts like the Upanishads. They didn't know the composition of matter. That is why they have invalid arguments like the food we eat has a direct correlation to the composition of the mind. But for PPs, ancient equals truth. Evidence doesn't matter. PPs piggyback on religious credulity to spread nonsense from ancient texts.

Thursday, March 18, 2010

So called science of Gayatri Mantra

Update: There is a much better version of this post at the Nirmukta forums

There is an email floating around which is supposed to demonstrate the scientific meaning of Gayatri Mantra. Here it is in its full glory (the dissection is towards the end):

* * *
Subject: Scientific Meaning of the Gayatri Mantra

Gayatri mantra has been bestowed the greatest importance in Vedic dharma.This mantra has also been termed as Savitri and Ved-Mata, the mother of the Vedas.
Ombhur bhuvah swah
Tat savitur varenyam
Bhargo devasya dheemahi
Dhiyo yo nah prachodayat
The literal meaning of the mantra is:
O God! You are Omnipresent, Omnipotent and Almighty. You are all Light. You are all Knowledge and Bliss. You are Destroyer of fear, You are Creator of this Universe, You are the Greatest of all. We bow and meditate upon Your light. You guide our intellect in the right direction.

The mantra, however, has a great scientific importance too, which somehow got lost in the literary tradition. The modern astrophysics and astronomy tell us that our Galaxy called Milky Way or Akash-Ganga contains approximately 100,000 million of stars. Each star is like our sun having its own planet system.

We know that the moon moves around the earth and the earth moves around the sun along with the moon. All planets around the sun. Each of the above bodies revolve around at its own axis as well. Our sun along with its family takes one round of the galactic center in 22.5 crore years. All galaxies including ours are moving away at a terrific velocity of 20,000 mile s per second..

And now the alternative scientific meaning of the mantra step by step:

(A) OM BHUR BHUVAH SWAH:
Bhur the earth, bhuvah the planets (solar family), swah the Galaxy. We observe that when an ordinary fan with a speed of 900 RPM (rotations Per minute) moves, it makes noise. Then, one can imagine, what great noise would be created when the galaxies move with a speed of 20,000 miles per second. This is what this portion of the mantra explains that the sound produced due to the fast-moving earth, planets and galaxies is "OM"

The sound was heard during meditation by Rishi Vishvamitra, who mentioned it to other colleagues. All of them, then unanimously decided to call this sound Om the name of God, because this sound is available in all the three periods of time, hence it is set (permanent). Therefore, it was the first ever revolutionary idea to identify formless God with a specific title (form) called upadhi. Until that time, everybody recognized God as formless and nobody was prepared to accept this new idea. In the Gita also, it is said, "Omiti ekaksharam brahma", meaning that the name of the Supreme is Om, which contains only one syllable (8/12).

This sound Om heard during samadhi was called by all the seers nada-brahma a very great noise), but not a noise that is normally heard beyond a specific amplitude and limits of decibels suited to human hearing. Hence the rishis called this sound Udgith musical sound of the above, i.e., heaven. They also noticed that the infinite mass of galaxies moving with a velocity of 20,000 miles/second was generating a kinetic energy = 1/2 MV2 and this was balancing the total energy consumption of the cosmos. Hence they named it Pranavah, which means the body (vapu) or store house of energy (prana).

B. TAT SAVITUR VARENYAM: Tat that (God), savitur the sun (star), varenyam worthy of bowing or respect. Once the form of a person along with the name is known to us, we may locate the specific person.Hence the two titles (upadhi) provide the solid ground to identify the formless God, Vishvamitra suggested. He told us that we could know (realise) the unknowable formless God through the known factors, viz., sound Om and light of suns (stars).

A mathematician can solve an equation x2+y2=4; if x=2; then y can be known and so on. An engineer can measure the width of a river even by standing at the riverbank just by drawing a triangle. So was the scientific method suggested by Vishvamitra in the mantra in the next portion as under:-

C) BHARGO DEVASYA DHEEMAHI:
Bhargo the light, devasya of the deity, dheemahi we should meditate. The rishi instructs us to meditate upon the available form (light of suns) to discover the formless Creator (God). Also he wants us to do japa of the word Om (this is understood in the Mantra).. This is how the sage wants us to proceed, but there is a great problem to realize it, as the human mind is so shaky and restless that without the grace of the Supreme (Brahma) it cannot be controlled.

Hence Vishvamitra suggests the way to pray to HIM as under:
D) DHIYO YO NAH PRACHODAYAT:
Dhiyo (intellect), yo (who), nah (we all), prachodayat (guide to right Direction). O God! Deploy our intellect on the right path. Full scientific interpretation of the Mantra: The earth (bhur), the planets (bhuvah), and the galaxies (swah) are moving at a very great velocity, the sound produced is Om, (the name of formless God.) That God (tat), who manifests Himself in the form of light of suns (savitur) is worthy of bowing/respect (varenyam). We all, therefore, should meditate (dheemahi) upon the light (bhargo) of that deity (devasya) and also do chanting of Om. May He (yo) guide us in the right direction (prachodayat) our(nah) intellect dhiyo. So we notice that the important points hinted in the mantra are:-

1) The total kinetic energy generated by the movement of galaxies acts as an umbrella and balances the total energy consumption of the cosmos. Hence it was named as the Pranavah (body of energy). This is equal to 1/2 mv2 (Mass of galaxies x velocity2).

2) Realizing the great importance of the syllable OM, the other later date religions adopted this word with a slight change in accent, viz., AMEN and AMEEN!

* * *

The "science" in it basically boils down to these two points:

1. Galaxies rotate. Rotating objects make sound. The sound that Milky Way galaxy makes is OM.
2. Galaxies have infinite mass. Moving galaxies have kinetic energy. That energy balances the energy consumption of the cosmos.

If you thought "WTF?", read no further. It means you have a basic understanding of physics and could see the colossal stupidity of the two premises. If you didn't, read on.

Now take the first premise. Sound needs a medium to propagate. Galaxies have a hell lot of stars, but they are at least a few light years apart and guess what is there in between that space? Vacuum. Does vacuum conduct sound? Not in this Universe. So the first argument is a truck load of crap.

Coming to the second premise, it says galaxies have infinite mass. Again, in this Universe galaxies have finite mass. Then it talks about "Energy consumption of cosmos", an extremely vague statement. How does it consume the energy? Why does that consumption need "balancing"?

So there it is. The scientific explanation of Gayatri Mantra is nothing but an utter lack of understanding of elementary physics.