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 5:08 PM

Symbols of the racist past still prevalent in the United States

George Floyd’s recent death while in Police custody has sparked protests across the entire United States. While it did expose the way Black Americans are policed, it also initiated a much deeper conversation about the prevalent racism faced by Black Americans in almost all aspects of modern life.

Many symbols of the racist past still exist across the US, more so in the Southern states. The recent trigger of protests and the BLM movement has initiated a discussion about these symbols once again. While some argue that it is important to preserve these symbols owing to the American culture, the majority of the people seem to be agreeing that these are symbols of oppression and injustice.

Thomas D. Rice is pictured while performing his blackface role — Jim Crow | Source: Edward Williams Clay via Wikimedia

In the mid to late 19th century, white actors quite commonly employed the use of black grease paint to depict slaves and free blacks on stage. The technique commonly known as blackface was more than just facial makeup. Rather, it was used as a symbol for mocking the African-Americans as inferiors in every aspect of life.

Blackface seemed to have disappeared in the 1960s thanks to the Civil Rights Movement. It however reappeared in the 1980s on college campuses in the wake of steps taken to bring more African Americans to campus. An old yearbook picture from Langley School resurfaced recently revealing the then-principal and vice-principal dressed as whiteface and blackface for Halloween. The current leadership of the school have issued apologies stating that the incident should not have happened.

Despite a racist history surrounding blackface, a recent survey by Pew Research Centre revealed that nearly one-third of Americans surveyed did not find anything offensive in blackface being used at Halloween.

Newspaper ad for Aunt Jemima Buckwheat pancake mix, 1923 | Source: Chronicling America: Historic American Newspapers. Lib. of Congress

Aunt Jemima, a 130-year-old syrup and pancake mix brand owned by Quaker Oats depicts a black woman named Aunt Jemima who was originally dressed as a minstrel character. The company has earlier made tweaks to the picture of the black woman in response to the criticism it received for propagating a racial stereotype. In June 2020, Quaker Oats announced that the brand would be rejuvenated to feature a new name and image.

Image of Andrew Jackson, the seventh president of the United States | Source: Wikimedia

Andrew Jackson, the seventh US president and his family employed hundreds of enslaved people in building their wealth. However, to date, Jackson still haunts Black Americans with his presence on the twenty-dollar bills in the wallets of these Americans. The Trump administration’s decision to not replace the bill featuring Jackson with one that would feature abolitionist Harriet Tubman as proposed earlier does not help the nation’s troubled history with Racism.

Similar symbols of the US racist past exist across the entire country, starting from streets named after Confederate officers to congested highways specifically designed to ensure isolation of Black neighborhoods. Football and baseball games in the country still feature the national anthem penned by Francis Scott Key, a person who used his power as district attorney to prosecute Black men.

George Floyd’s death was the perfect trigger for all the anger and frustration against the systematic injustice that has been meted out to Black people. However, it also served well to initiate debates over the omnipresence of these racial symbols across the country that serve as memorials to slavery and white supremacy.

As many as 800 Confederate statues and monuments have been removed ever since the BLM protests erupted in the country. A few of these racial symbols in the US suffered the brunt of BLM protesters who defaced homages and toppled statues of founding fathers who had profited from slavery.

Those against the removal of these symbols argue that these men merely failed in morality due to the socio-political environment they inhabited. Alvita Akiboh, an assistant professor of history at the University of Michigan, however, disagrees with the notion. “Just because slavery was accepted among white elites or even the broader white population at the time does not mean it was accepted by everybody, because everybody includes Black people who were enslaved, indigenous people who were pushed off their lands in order to expand plantation slavery,” said Akiboh.

Others, including US President Donald Trump, have employed the notion of removing these symbols as the equivalent of “ripping American history and culture apart”. To this Akiboh voices her opinion saying that the majority of these symbols were erected decades after the civil-war conflict ended. She argues that they are merely “a reminder for Black and brown people to remember their place”.

As the BLM protests gain momentum and support globally the scrutiny of the racist symbols in the US shall increase manifold. With the government not willing to push for major reforms and removal of these racist symbols and an adamant public demanding an end to the systematic discrimination based on race, the road ahead for the recial relation in the US is a difficult and complicated one.

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