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 4:40 PM

Black Lives Matter: Will it lead to reform of Police Forces in the USA?

The spontaneous eruption of the “Black Lives Matter” protest after the unfortunate death of George Floyd at the hands of Minneapolis police has once again put the spotlight on the operational methodology of the police department at different cities around the USA. There is a chorus across the country, more so in the Democratic Party strongholds to do fundamental reorganization of the police force by focussing on community policing. Some of the extreme and radical activists have gone so far to demand “defund the police” and re-distribute its budget to marginalized communities, municipal corporations and necessity institutions.

“There is no magic switch to turn off and boom there’s no police department,” said Alex Vitale, a sociology professor at Brooklyn College. She released a book named ‘The End of Policing’. The book has become a manifesto for protests and police-reform advocates. The defund development calls for diminishing networks' dependence on police for various administrative problems like, observing the homeless, settling household quarrels, restraining understudies, reacting to upheavals by individuals with mental illness, paring down violence in neighbourhoods, and proportional reaction to minor inconveniences like somebody attempting to pass a fake $20, the allegation that set off the police call that resulted in Floyd's demise. The funds saved by reducing the workload of police could be utilised by social and community workers to resolve street feuds. “When we talk about de-funding the police, what we're saying is invest in the resources that our communities need,” Black Lives Matter co-founder Alicia Garza told NBC News.

There are cities which have approached this reform in a positive manner. New York Mayor Bill de Blasio has decided to shift the money from NYPD budget to youth recreational programs. A whopping $150 million is being pulled out of the LAPD by Los Angeles Mayor Eric Garcetti. This money is proposed to be invested in healthcare systems and build peace centres. Similarly Portland and Oregon have consented to pull police from state funded schools. A few Minneapolis organizations, including the government funded school region, the University of Minnesota and the Park and Recreation Board, have moved to diminish or end their agreements with city police.

Dallas has earlier experienced the positive results of diverting emergency mental health calls, not only on hospitals but also police to non-police establishment when in 2018 RIGHT Care  was provided $3 million funding to look after these issues. Since the program started, ambulances and emergency vehicle calls for individuals encountering emotional wellness inconveniences have declined in the south-local region of Dallas where the program works, which has opened up officials to manage different calls, authorities said. This transition was also done after the outcry over the shooting of a schizophrenic man holding a screwdriver in 2014 and subsequent defence of police personnel by the police boss David Brown.

Law enforcement officials and conservative activists believe that de-funding police would lead to an upsurge in criminal activities. President Donald Trump has started making this as a key plank of his re-election campaign while the Former Vice President Joe Biden, who is running against Trump, also came out against de-funding police.

It is therefore too early to predict whether the current phase of “Black Lives Movement” after the death of George Floyd will be successful in bringing some substantial reform in the working of police forces across the cities of the US or the momentum will be lost with some incremental tweaking here and there.  

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