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 5:06 PM

Environmental Impact Assessment (EIA) 2020: Why the draft is being opposed in India?

The Ministry of Environment, Forest and Climate Change (MoEFCC) sent a shockwave through the country when it released the Environmental Impact Assessment 2020 draft notification on March 12, 2020, amending the 2006 version.

The EIA serves as a means for the industries to obtain environmental clearances for their projects. The proposed projects are brought in front of the concerned public to be discussed and debated. If the projects proposed by the industries disturb the ecology and people living in that particular area to a large extent, then the Government cannot give permission for the project to continue.

There are several things included, or excluded, in the 2020 version which have enraged environmentalists, nature lovers and numerous concerned citizens across India.

Firstly, it includes post-facto approval. This means that any factory which has already begun with construction, will get a clearance, irrespective of the environmental damage it has already caused. However, the owners of the concerned factory will have to pay a fine of a certain amount.

Secondly, the new draft notification is released only in Hindi and English. Considering the lingual diversity of India, the communities which are not fluent in either languages will not know what the notification is about. This will reduce transparency and the livelihoods of such communities might get demolished without any warning.

The 2006 notification made it mandatory for every company involved in a project to submit a report every six months, verifying that the company is working within the terms of the granted permission and not going overboard with the available resources. The 2020 draft has extended the timeline of report submission once in twelve months. Moreover, certain projects like expansion of highways and road construction through forests are exempted from getting clearances.

Himalayan foothills, Sikkim, India | Source: Flowcomm via Flickr

Such features of the 2020 draft violate norms of the Environmental Protection Act (EPA, 1986) and also indicate that the scales are tipping dangerously towards the big industries, at the cost of our planet’s health. Livid cries have erupted from the people, especially those living in North-Eastern India and foothills of the Himalayas.

Himalayan ecology is at the brink of fragility and it requires stringent monitoring laws, the opposite of what EIA 2020 offers. "The Himalayan region today is in the most vulnerable position with massive climate-induced disasters, increasing deforestation, loss of biodiversity etc. Amending environmental norms will accelerate the ecological crisis in the Himalayas" says Ravi Chopra, a renowned environmentalist from Dehradun.

Since the draft has not come out in regional languages, the Karnataka High Court restrained the government from publishing the final document till it was accessible to a wider audience.

Although the government extended the deadline from June 30 to August 11, 2020, for the general public to pool in their opinions through emails, it shut down three main online websites on which youngsters of this country protested against EIA 2020. “We reasonably have a clear basis, based on our correspondence as well as our technical analysis, that this was a domain seizure by the government of this website” says Apar Gupta, executive director of Internet Freedom Foundation (IFF).

The EIA 2020 amendment does not do justice to the fundamental principles of environmental impact assessment and is more focussed in easing the clearance for the industries than the protection of the environment.

Economic growth, no doubt is important, more so at this trying time. However we should also bear in mind the cost which is to be paid for it, sooner or later.

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