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

Publication Date

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 4:58 PM

Tanzanite Gemstone: Changing the future of Tanzania’s small miners

A beautiful gemstone with a wide range of colours, from light to dark hues of blue and violet, found only in a patch 4 kilometres long and two kilometres wide at the foot of mount Kilimanjaro in Tanzania. Existing supply of these gems would run out in about 20 years and finding it in any other region has the probability of just one in a million. Tiffany & Co, the American jewelry manufacturer, described it as “the most important gemstone discovery in over 2000 years”. Yes, we are talking about Tanzanite, the pride of Tanzania.

This rare gemstone was in news recently when a small time miner, Saniniu Laizer found two large weighing 9.27 and 5.103 kgs which are the two largest tanzanite gemstones ever found. This discovery turned the miner millionaire overnight as those pieces were sold at about 3.35 USD. He was congratulated on live television by President John Magufuli, who himself was elected in 2015 with the promise of preservation of the nation’s interest in the mining industry. Mr Laizer’s mining operation includes more than 200 miners and he intends to use the money for the development of a school and a shopping mall near his home.

In order to promote the industry, many reforms were undertaken by the  government of Tanzania. It started taking a 50% equity in all mining projects after 2010 and banned the export of large sized raw gemstones. A fence was also built  in 2018 around the whole area where Tanzanite is mined but about 40% are siphoned without paying any royalty to the government.

However the discovery of such gemstones by a small miner was made possible due to the government policy of promoting local artisanal miners. In order to foster local ownership, the government gave the land and exclusive mining rights to the artisanal miners who mostly owned small and medium establishments. Many trading centres were established by the government in 2019  to facilitate these miners sell gems and gold directly to the government and earn better revenue.

Such discoveries sound promising for the industry in the light of how extensively they are promoted, and how many effective actions the government has taken to protect the industry. This also acts as a big morale booster for the small miners to redouble their efforts and search for the gemstones more vigorously.

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