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 5:11 PM

Ethiopia's Proposed Dam on the Nile: Will it bring shared benefits or cause war among Ethiopia, Egypt and Sudan?

The longest river in the world, the Nile,  spans a distance of over 4000 miles, passing through large parts of Africa including Tanzania, Rwanda, Ethiopia, Sudan and Egypt, to name a few, and finally emptying into the Mediterranean Sea.

The Nile is a lifeline for Egypt, Ethiopia and Sudan, whose mutual relation took a beating when Ethiopia proposed to build the Grand Ethiopia Renaissance Dam (GERD). The proposed dam would make Ethiopia the biggest exporter of electricity in Africa and give a boost to its growing economy.

However, this project invited furious responses from Egypt as Nile is deeply connected to the history of the country since ancient times. Also about 95% of Egyptian population resides along the banks of the Nile and are heavily dependent on the river for sustaining their livelihood. Building the large reservoir will deplete the water resources of Egypt which will threaten their livelihood.

The Nile is experiencing pernicious effects of escalating population and climate change and the United Nations has projected that it is expected to cause immense water scarcity by 2025. “We’re worried. Egypt wouldn’t exist without the Nile. Our livelihood is being destroyed. God help us” says Hamed Jarallah, an Egyptian farmer.

This 5 billion-dollar project was initiated in 2011, is capable of producing a whopping 6000 megawatts of hydro power and has a reservoir capacity of 74 billion cubic metres. This dam is projected to annually contribute over a billion dollars to the Ethiopian economy. It is alleged that Ethiopia has already started filling the reservoir despite the protests from other countries.

In 2015, Ethiopia, Egypt, and Sudan signed a ‘Declaration of Principles’ which called for the equal water distribution. Despite more than five years of negotiations, these countries are still not able to reach mutually acceptable agreements. Earlier, Sudan supported Ethiopia’s dam proposal as it was promised adequate electricity at a cheaper cost. However, the failure to reach a conclusive agreement led it to oppose Ethiopian dam. Sudan has already gone ahead and notified the United Nations Security Council (UNSC), the dangers its people will face via a letter advocating them to step in.

Al-Sisi meeting President Trump | Source: The White House via Wikimedia

When Egypt made a demand for GERD to release around 40 billion cubic metres of water every year, Ethiopia denied this suggestion while Sileshi Bekele, minister for water, irrigation and energy, called the volume of water ‘inappropriate’. Finally, in 2019, Egyptian President Abdel Fattah al-Sisi turned towards U.S President Donald Trump to settle this long dispute. “The Ethiopian side does not want an agreement and has not offered an alternative” says Egyptian minister Mohamed Abdel-Ati as Ethiopia retracted from the US-led conciliation over GERD.

Secretary Pompeo Meets with Ethiopian Foreign Minister Gedu | Source: U.S. Department of State via Wikimedia

Ethiopia further provoked Egypt when Ethiopian Foreign Minister Gedu Andargachew tweeted that Ethiopia will have “all the development it wants” from the river and that the Nile is theirs. This was a strong posturing which sparked whispers of an apparent war between Egypt and Ethiopia. If it escalates into a war involving the military then Ethiopia might succumb to the powers of the Egyptian army. However, according to Sisi, military intervention is unlikely to take place as he believes negotiation is the best way to arrive at a viable agreement.

As these three countries march ahead in their task to find a middle ground, they should focus on ideas which would include potential for a ‘shared economic advantage’ and also include organizations like the World Bank which can provide financial backing for improvement purposes in such regions.

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