Saturday, July 25, 2020

Physics and Technological Revolutions

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Oem Trivedi

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Physics and Technological Revolutions

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Global Views 360

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July 25, 2020

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IBM Quantum Computer, an innovation based on Quantum Physics

IBM Quantum Computer, an innovation based on Quantum Physics | Source: IBM Research via Flickr

As he witnessed the first detonation of a nuclear weapon on July 16, 1945, a piece of ancient Scripture “Bhagwad Geeta” ran through the mind of Robert Oppenheimer: “Now I am become Death, the destroyer of worlds”. Oppenheimer, alongside the likes of Richard Feynman, Enrico Fermi, George Gamow, was part of the star-studded Physicist squad behind the Manhattan Project.

The biggest implications drawn from the end of WW2 for many might have just been the incoming power Struggle between the US and Soviet Union, but for your average American it went to a great length to show that Physicists form a breed of people who can build dangerously effective technology.

That fact, however, would have been evident to anyone with a brisk walk through Human History itself. Physicists have arguably provided the most significant contributions to the Technological Development of our race. From Archimedes building light reflectors to save the Greek Army from Roman Infiltration to the large-scale Ballistic Missile systems made during WW-II, weaponry technology has been highly influenced by physicists in every generation.

But mere list of armaments cannot do justice to the role played by Physics Research in Technological Developments of our society. To get a feel for that, let’s go back to the fathers of Modern Physics as we know it; Sir Isaac Newton and Galileo Galilei. Galileo had his long list of achievements in creating cutting edge technology of the day, ranging from Telescopes to Thermometers & the Magnetic Compass. Sir Isaac for his part was the reason behind the advent of the Industrial Revolution in Great Britain!

The simple Atwood Machines which have today become mainstay material taught to College Freshman and High School Seniors worldwide, were actually the kind of mechanical models on which the large-scale Factory Machines were built. Newton’s laws kickstarted the modern Technological Revolution and ever since then, Physics has been a constant source of inspiration behind all Technology.

The great pioneers in the field “Natural Philosophy” (the physics of today) after Newton continued the trend which their illustrious predecessor had started. The seminal works on Thermodynamics by the likes of Lord Kelvin, Ludwig Boltzmann, James Clerk Maxwell etc. played the decisive part in creating automobile engines and really any technology which dealt with heat (Spoiler Alert- There were a lot of them!). Maxwell’s work on the famous equations on Electromagnetism now named after him played the most significant part in the mission of making Electricity available to everyone (a conquest now just famously remembered for the fight between Nikola Tesla and Thomas Edison).

While one can point out that Theoretical works cannot lead to new Technology on their own, that assertion is only the half-truth. Sure, building technology on the basis of theoretical physics is mostly down to the Engineers, but one cannot underestimate the effect new theoretical developments and their possible uses have on the construction of new technologies. After all, if one was not able to understand the principles of the conversion of mass to energy or Electric & Magnetic Fields are coupled to each other, then expecting the construction of Nuclear Reactors and virtually all Electric Tech today would have been off the table.

So one might ask, what are the new theoretical ideas which can guide the next leap forward technologically? Well, no one can be quite sure of the form which technology will take in even a couple of decades (who would have thought that Server systems designed for efficiently using giant Data in CERN would one day be heavily used for making memes!).

I would go as far as to say that we have not yet completely exhausted the technological possibilities of the Special Theory of Relativity itself, the most prominent example of game changing technology based on that has been GPS Communication systems. One can hence fail to even imagine the kind of technological (and Industrial) progress technologies built on the revealing concepts from General Relativity and Quantum Mechanics can bestow upon us (I’m even refraining to comment on the Quantum Field Theoretic parts!).

Whatever that physics will lead us to is a mystery time will be most suited to answer, but one can see the effects of Quantum Mechanics in the next Computational Revolution itself; Quantum Computing. To put into perspective the extent of development Quantum Computing can bestow upon us, consider the following.

Computational devices today, which are stronger than the computers which put humans to the moon, are fundamentally built upon binary bit systems. From generating Big Bang like Energies in CERN and reaching past Saturn, to making all the knowledge available to everyone has been done in two bits. While Quantum Computers, which are being vividly researched on, can work with virtually infinite bits ! So, hold on tight as exciting new physics promises some large-scale changes on our Civilization as a whole.

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February 4, 2021 4:54 PM

The story of reconciliation and development in the genocide hit Rwanda

The genocide and civil war had rendered hundreds of thousand of people homeless and in utter misery. If the Tutsi’s were the primary victims of genocide, the Hutu’s too suffer in the ensuing civil war when Paul Kagame led Rwandan Patriotic Front defeated the government forces and took over Rwanda.

When the genocide stopped by August 1994, the the suspected perpetrators of crime were hounded by the new government forces. Thousands of Hutus left the country and sought refuge in the neighbouring countries. The legal system of Rwanda was in shambles and the vengeance was taking precedence over the quest of justice. Over a hundred thousand suspected genocidaires were put in prison but could not be properly tried due to a strained judicial system.  

Things however started to change from the year 2000, when Paul Kagame became Rwanda’s President. The biggest challenge for him was to rebuild a society that is economically and socially stable. The socio-economic transformation of Rwanda under Kagame is an inspiring story of reconciliation based on acceptance, repentance and forgiveness, the very foundation on which the edifice of Rwanda's reconciliation is standing firmly today.

The first step towards reconciliation started in 2002 when Rwanda introduced the community-based dispute resolution mechanism, Gacaca to try the genocide related crimes. Gacaca was traditionally used in Rwanda to resolve minor disputes. In its new incarnation, the objectives included not only delivering justice, but also strengthening reconciliation, and revealing the truth about the genocide.  

In the Gacaca court the local community elected the judges who then tried the defendants  in front of members of the local community. These community members  were asked to share whatever they knewabout the the role of defendant during the genocide. Gacaca courts functioned extensively during 2005 to 2012 and processed almost two million cases in this duration.

Though Gacaca courts were criticised by many human right organisations for putting speed over fairness in trial, it undoubtedly resulted in giving the opportunity for some genocide survivors to learn what had happened to their relatives. It helped many families of survivors and perpetrators living side by side with peace and contentment in many reconciliation villages, after the ‘perpetrators’ confessed their crimes and expressed repentance.

Taking inspiration from The Truth and Reconciliation Commission” of South Africa, Rwanda established a “National Unity and Reconciliation Commission” in 1999 with an objective to reconcile and unite the Rwandan citizens. This process used four specific tools. (1) Ingandos - to bring normal activities to a standstill in order to reflect on, and find solutions to national challenges, (2) Organising reconciliation summits, (3) Creation of a leadership academy for developing a new set of grassroot leaders, and (4) Frequent exchanges and consultations at inter-community level.

All these efforts along with that of many non-governmental organisations helped to greatly heal the deep wound of sectarian violence in Rwanda. According to the report published by the National Unity and Reconciliation Commission of Rwanda in 2016, over 92% of Rwandans feel that reconciliation is happening.  

Alongside the reconciliation process, the government of Rwanda started spending on health, education and other civic infrastructure which has paid a good dividend in last two decades.

Government expenditure on healthcare facilities per person has gone up sixfold from just $21 in 1995 to $125 in 2014) which contributed to the increase in Life expectancy at birth by 32 years between 1990 and 2016 while  reducing the infant mortality by half since 2000.

The focus on the education sector resulted in almost three quarters of girls and two-thirds of boys now completing primary schooling while literacy rates of adult males and females increased to 75% and 68% respectively.

Rwanda now ranks 6th out 149 countries in the global gender gap index and a high proportion of front-line political positions, including 61% of the parliamentary seats are occupied by women. Rwandan women possess the right to inherit property and can also pass citizenship to their children.

The newfound peace, stability and reconciliation in Rwanda gave a boost to the country’s economy which saw per capita GDP growth from $200 to almost $800 between 1994 and 2017. In 2018 the GDP grew at  8.6% and the county rated the second-best place to do business in Africa.

Rwanda today is a shining example that a country with a long and painful history of violent sectarianism, can achieve great success, if it takes every section of the population along on a path of peace, unity and reconciliation.

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