The Maxwell’s Equations, from nature to instruments.

The beauty of Maxwell’s equations can be seen in how it helps us understand nature as well as instruments, at the same time. Medical devices are simply an advanced understanding that began with understanding electromagnetic waves through Maxwell’s equations.

Each of the following 4 equations has a different name, by which we call’em, but together they are called as the Maxwell’s equations. Together they constitute what I am inspired to say; the golden equations of Physics. If we do some easy tricks they will be converted into whats called as the Wave Equations (of motion) ! Yes, they describe the wave behavior “fully”.

— By that I don’t mean sound waves, but any sort of waves that move at the speed of light. Sound waves are ordinary pressure oscillations, that travel much slower than even rockets.
The 4 equations therefore describe how electromagnetic waves are created and broadcast. Hence TV radio and satellite communication were understood because these 4 equations were understood.

First two are time-independent or static equations.

The first equation is known as Gauss’s law of electrostatics and says “Electric fields (E), are a result of sources of electrostatic charge”.

The 2nd equation is analogous and called as Gauss’s law of static magnetic field. But it says “apparently there are no sources of magneto-static charge or single magnetic pole from which the magnetic field B is created”.

Then how are magnetic fields created? We needed to know further to find the answer. Lets look at the 3rd and 4th equations.


Star Motion, an interesting star concept.

To budding astronomers.

A difference between true velocity and proper velocity. Proper velocity (proper motion) is the motion of a star apparent to the center-of-mass of the solar system. That is, how fast any object (a star) is moving wrt the sun’s position. (in terms of its center-of-mass)

So if a star is close to sun, its true velocity might be as much as it is, but proper velocity can be larger. Proper velocities are often larger when stars are closer, an useful fact in Astronomy.

(How proper velocity is eg useful in Astronomy, should be a good essay type question in Indian University exams, in the course of astronomy, but rather its more useful to remove essay type questions from Exams of University and such essay should be written by students as blogs, and the best blogs can be rewarded, Change should be brought to our education system by innovative thinking and not just by lecturing on outdated spiritual discourses)

Stars and Fate.

Astrology is the blind belief that stars change our fate — pun; like the blind belief wives change our personality. This is where Physics becomes a paraphernalia of whim, cultivated over the ages, to bring solace in seeking ignorance as a means of existential glory.

I just checked some scientific terms, in regards to how they have been made to work like paraphernalia to produce different astrological system. I was not shocked that Indians have kept advanced strides in one branch of knowledge — or the lack-thereof; Astrology.

Guess what? Hindu Astrology is a Sidereal Astrology, hence much advance than Western Astrology, which is a tropical astrology. This we have often taken boastfully, to mean that Indian science is advanced and far-reaching, even from the times of Vedas, but the simple facts — of my conviction, are; we have been manipulative from a very early time in our civilization’s evolution.

We just took science to produce religion. We also took religion to produce myth, and myth to produce social customs and took social customs to downplay science. Why else is “western” science advanced and we are merely a laggard participant in its various glorification.

— Of-course I don’t have words of solace to those who disagree, if like kids we assign ourselves the fancy of winning every sports, that we do not even take part in, because our parents will succumb to that whimsical demand of ours, it wouldn’t work towards science, here we have to work nonetheless, take part in each and every detail and each and every aspect, its not sufficient or even necessary to just downplay the impact of criticism.

Why Bose is not the scientist after whom Higgs is named.

A very few particles (out of 1000s) are named after scientists, eg the so called mu meson was called a Yukawa Meson, although it turned out to be a misnomer. Mu-meson was found to be a lepton, rather than a meson, as was thought by Yukawa and others.

Now called Muon it belongs in the same class that an electron belongs to, leptons, which are both Fermions. Hence initially thought to be a Boson (because all mesons would be bosons) the muon is actually a Fermion (all leptons are Fermions).

Should we say; initially muon was named after Bose, then correctly; after Fermi? That would be HOKUM. Right thing would be to say; it was named after Hideki Yukawa (wrongly as a meson or boson) then it has been named as muon which is now a Fermion. But its still named after Yukawa; given to a misnomer-correction. It can be called Yukawa-Lepton MUON (instead of Yukawa Meson Mu).

Nowhere Bose or Fermi have been the scientists after whom this particle has been named. Bose and Fermi are scientists after whom a principle of physics or nature has been named but not a particle. That would clear any mischievous air.

Review of Gravity, the movie, discussions.

A discussion on Space movie Gravity, which I saw recently.

I remember one fact, that concerns, Physics, the roughly 50000 miles an hour (correct?) speed of ISS level debris that was coming, it set me thinking, are they violating the Relativistic Laws? For a while, and then I realize its per hour, not second, (that later would be grossly incorrect, 50 K miles / sec would violate Relativity certainly) that comes out to be 20 km/sec and thats perfectly enough close to what sort of speed, earth, moon, any satellite are typically found with, in our Sun’s Gravity. (in free fall) Even Rocket’s launching requires escape velocity. 11.2 km/sec. So they have clearly done their research on the Physics, as far as I could get in that moment.

Why human eyes are sensitive to only visible light?

“Why Human Eyes Are Sensitive To Only Visible Light”. These processes are arbitrary, which is somewhat more technically referred as “contingency”. Its not just for the case of vision that this arbitrariness is present, but all forms of biological properties. eg A conch shell is spiral in a certain way and this is only specific to the snail-likes. Fur is different for different animals. Arms and limbs are different for different animals. This is because of such arbitrariness which are present in 100s of different ways depending on exactly how a life form develops. ( — We are all describing this on general terms, here in this discussion).

Technically, adaptation has to do with exposure. One has to be exposed to the kind of situation one is borne in. Human beings are not borne deep down, on the ocean bed, but on ground with optimum temperature and other life conditions. So, there has to be optimal amount of heat present. Human Beings can’t survive huge temperatures. But many animals can, so they are exposed more harshly to Infra Red (IR) etc. Its the whole body which evolves and then different parts might evolve differently. [w.r.t. different thermodynamic and other life defining conditions]

Just a wild guess: may be some animals were borne [created by contingent chances] very close to volcanic eruption, eg snakes, which is why they could be sensitive to IR type of vision. etc etc. On planet earth, optical light comes only from Sun, (in its profusion, can turn off the sun during night or moon some nights and its total darkness). This sun-light in optical radiation window is extremely intense in visible spectrum but with IR spectrum its intense only during summer. This intensity going from one place on planet earth to another can vary between say 10% – 60% during a year. That means the likelihood of birth can be reduced by that factor towards IR exposure, if it were to come from sun but not from volcanoes. The actual condition on earth might …

सत्य कि बिबिधता सिमित हैं, यद्यपि सिर्फ एक में सीमित नहीं।

बिज्ञान अक्सर परिभाषाओं के दायरे में सिमित रह जाती है क्यों कि इस से ऊपर उठना अल्बर्ट आइनस्टीन के भाषा में “बिज्ञान चमत्कार है अगर इसे कमाने कि एक पन्था से दुरी से देखा जाये तो” जैसे “पूर्ब सोम कि सत्य” जैसा प्रतीत है. यह अलग बिचारों से अलग हो जाती है, पर सत्य एक मात्र उपलब्धि न होने पर भी बहत सारे उपलब्धि भी नहीं हैं, कुछ और सीमित उपलब्धियां सत्य कि भरमाई करते हैं।

चेतन भगत के बिकने के कारण भी ढेर सारे हैं जो बिज्ञान से तालुक नहीं रखते, इसके परिभाषाओं के दायरे में, लेकिन क्या हम कह सकते हैं वो कामशास्त्र से ज्यादा महत्व रखता है? चेतन एक जातीय आशा कि कयामत से परिबंधित है, पर कामशास्त्र एक प्राचीन अतः अंतराष्ट्रीय, तथा एक कोमल भाबना कि महिमा जैसे परिकल्पनिया है. यह चेतन कि महनीयता के ऊपर प्रश्न नहीं, बल्कि सत्य कि बिबिधता के ऊपर आलोकित करने की चेष्टा है।

सत्य कि बिबिधता सिमित हैं, यद्यपि सिर्फ एक में सीमित नहीं।

सत्य अनिर्बचनिया है. यह सुन्दर भी है, शील भी है …

Why sex can be used to dominate.

Why sex is often used against opponents? There are two most competitive and perhaps the most leading behavior of us human beings. 1. Intimacy, which in its most nonsensical form is sex. 2. Creating and harboring opponents to prove our OWN supremacy.

Is it needful to say that our nonsensical intimacy has procreated and sustained us but our innate desire to kill or vanquish others has nonetheless kept us competitive because lest it only the one that hatches a conspiracy first will have an edge. We strike back not only at our extra-species opponents but at our own species in order to savior ourselves against nature’s odds.

Jupiter, Europa, their love game.

But how magnetic a personality is Jupiter? Jupiter’s magnetism is bigger than Sun’s and earth’s. A fact that certainly excites its lovers.

This hubble image shows how plumes of water are sprayed into its own atmosphere by icy Europa which the armor Jupiter splits at the atomic level by throwing electric charges at the water molecules in a rapid manner by its magnetic arm. Just like we accelerate charges by magnetic field here on earth and make them split each other, the power of Jupiter’s darts are so high they split the water molecules into ions of H and O. That causes radiation in various hues of color, an aura captured by the Hubble telescope.

MDASHF, how is it doing online.

All in all, safely, only 2013 saw 50,000 people who followed and endorsed my online presence or who accessed my website contents. (since you can like a page once only using your f-b id and since website visits checks unique IP address, this is a unique individual stats, that is , most precise count of number of people)

#mdashf wants to offer its long felt gratitude. This was possible only because of goodwill of people. There was zero amount of publicity expenditure. Not a single dime was ever spent by me or to my knowledge anyone else towards publicity. I am open to generous grants by individuals or orgs, btw, if you want to support #mdashf. The only expenditures that were incurred was on website layout, theme, fonts, hosting charge etc and the use of fancy all-in-one computer, personal laptop and printers/scanners and yea: BSNL ISP

A Physicist is a physicist’s way of talking about himself.

In my case therefore you see, 0 publications in 2001. The year I joined my PhD, I was learning more about snow-fall, JC Peney and Bus rides. 2002 I have hardly 1 or 2, that was the year when in the later half I was given the privilege of being able to sign for science papers. The next year I am already acquainted quite a bit, so signing more than 1 paper a month is no irksome involvement. I already know what I am signing it for. 20 papers a year. Then it grows to 60 papers the next year, thats papers a month, my team of 400 was producing where I have a legit share of expert contributions, through weeks of data-collection, analysis and data-mining etc. (There would be papers where I won’t have legit share, .. ) The next year 2005-2006 was my peak, 70 papers, You can check my pictures from 05-06 (on f-b) and see how much I was involved in the literally tons of ways experimentalists contribute 😉 No kidding not everything is visible outside the vacuum pipe, its risky)

Then you can see I am gradually climbing down, but its hard enough to climb down faster because you already have a history. Becoming celebrity is a one way affair, no return. With years my direct contribution goes down but history has that which is yet to come and that shows up as bigger share in contribution. (Just like the electron’s history-of-all-path must contribute towards its momenta for future)
I think thats a good connection, like the electrons the Physicists are lost, they are picking on different things and survive and their history makes it bigger.

Why scientific inventions are more and more imminent?

Even accuracy of Aristotle’s theory in ZOOLOGY was achieved in 19th century. He was therefore one of the most prolific and far reaching genius ever. After a 2000 year it took only 300 years for Einstein to overturn Newton. It took only 30 years before a group of genius (Heisenberg, Schrodinger, Bohr, Dirac et al and later Feynman, Fermi etal) who could revolutionarily modify the theories put forth by Einstein. Then it often oscillates anywhere between 3 to 100 years to see theories are overturned (or rather significantly modified) by successive group of scientists.

Equivalence from simple notions of Geometry ? Yes.

Now it may also be related that light bends in a denser media compared to a rarer media because an additional rotational force is working. In other words, the definition of straight line has to change in the medium, that is of different density, because path of light is changing. Light is the guy who suffers the least when something tries to buzz it, because its inertial property of mass is zero. The curvature of light or the bending or deflection known as Refraction is thus a measure of the sideways force or energy.

Thus speed of light in different media is a measure of this bending or curvature and is known as Snail’s law ( — Pun intended, its actually; Snell’s Law — ) . Automatically when distance and time have to readjust, to produce an angle or bending, known as refraction ( — possible because distance and time can produce an angle if they are equivalents — ) the speed must also change.

All these are inter related. Light refracts and its speed changes, in relative change in density of media because there are rotational or non-inertial effects.

( — or additional energy is available, or a force is acting to bring a curvature in light’s path, perhaps the electromagnetic effects of the molecules? Its not only distance or time that are equivalents, read one article of mine “All You Need To Know About Relativity” to understand; how energy and time and distance and in short all Physical Variables are equivalents of each other — )

A question a day !! (series) Q1

1. Which of the following best describes the
most widely accepted theory of the solar
system’s evolution?

A. A small star grew as it consumed
comets, eventually becoming large
enough to ignite fusion reactions
and attract planetary bodies.

You know Einstein was very clever. (Information Theory in Physics )

Then he goes S = Int{Ldt}, action is the total amount of specified definitions of energy over all of time, and action is a kind of information if we are dealing with a statistical system of L {energy} because Energy is not known precisely, or rather action is not, this fact is brought in by saying the time is an information or a PLAN, because things are not known precisely although depend on other well defined factors. Then he sees that since interactions of different chunks of Energy with each other which are not known very precisely gives rise to heat or temperature, temperature here serves as information or PLAN. Then this is still called S, akin to action because S again is information or imprecise or statistical. Then they call it Entropy. {Perhaps for INTERnal-Energy = Intropy} But this other factor temperature also is denoted by same initial T. Since T has to be a fundamental parameter as are Energy and Entropy it can go anywhere, in denominator or numerator and sitting below sometimes feels good so they give T the chance to do that. Its better to heat from below. Heat works that way. But Time T sits on top, see: S = Int{Ldt}.

Did ancient people know speed of light?

Light is zero mass as its emanated from a circle. Light are fast moving triangles. Then the ancient people might have understood that one can throw lighter objects faster. That means lightest=zero mass = light from sun travels fastest. But they did not know how fast. Just very fast and fastest. Since They only knew sun is very far away, its not on the other side of forest or mountain or the farthest distance they know. And they see it instantly as soon as it comes up in the morning. And darkness sets in quite fast, the fastest. They just did not have any more evidence or quantity about the speed of light than this. It was taken by Galileo to be infinite in the 16th CE. But much before that the ancients might have known all these facts. Just from Geometry and what they see, such as sun and light, what they experience, vitality and “energy”. But they also calculated things greatly, I mean each measurement in a temple that existed in MaYa civilization wasn’t astounding trigonometry then what? But whats the age of such design. (Was MaYa just a pyramid? is the actual age 7K years? )

Enjoy this blog? Please spread the word :)

Skip to toolbar