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 5:14 PM

Asian countries & the race for COVID-19 Vaccine

Our relationship with the new strain of coronavirus is almost 8 months strong now. Countries like the US, Russia, UK, China, India, and many more have already set their brainy scientists in the task of developing a vaccine, turning it into a race which desperately needs a winner, since no one wants this deadly relationship to endure. Several attempts have proved to be successful, especially in countries like Russia, USA, India, and China.

China was the first to start scouring for a vaccine the day WHO declared that the new strain of SARS-CoV, originating in Wuhan-China, has resulted in a pandemic. It is a fierce competitor, especially to the US, as almost 8 of the 24 promising vaccines approved for clinical trials are from China. It used the technology of ‘inactivated vaccine’ which basically means killing the actual virus and using that to create a vaccine. This method is quite useful in treating measles and influenza, thus, increasing the chances of success in the case of COVID-19 as well.

“It’s a tried and true strategy”, Paul Offit, director of the Vaccine Education Center at Children’s Hospital of Philadelphia, said  about the inactivated vaccine. One potential vaccine from China-based Sinopharm is already in the phase 3 of trials whereas Sinovac will enter the third phase this month. Moreover, China has permitted Sinovac and Sinopharm to dilute phase 1 and 2 of vaccine trials on humans to hasten the process.

The head of the Chinese Center for Disease Control and Prevention, Gao Fu, had also been injected with a potential vaccine on July 28, 2020. “I’m going to reveal something undercover: I am injected with one of the vaccines'' Gao Fu said in a webinar hosted by Alibaba Health, an arm of the Chinese e-commerce giant, and Cell Press, an American publisher of scientific journals. However, he did not reveal any more details about how and when exactly he administered himself with the vaccine and ‘hopes’ that the vaccine works.

Vladimir Putin, President of Russia | Source: Wikimedia

Elsewhere in Russia, on August 11, 2020, President Vladimir Putin proudly announced that Russia was the first country to grant regulatory approval to their vaccine after carrying out human trials for less than 2 months by the Gamalei Institute in Moscow. Regulatory approval permits vaccination of the masses. Although it has not undergone phase 3 of trials, Russia expects to initiate mass production of the vaccine by the end of this year. Kirill Dmitriev, head of Russia's sovereign wealth fund states that the vaccine will be called ‘Sputnik V’, named after Sputnik 1, the first satellite launched by Soveit Union which was a euphoric moment for Russia. More recently, China and Russia have joined hands in proceeding with the clinical trials of their vaccines.

These two instances seem to bring a new hope for the future, yet raise alarms and invite scepticism from the experts in the field of public health. One major concern is that without prolonged trials, vaccines should not be authorized for public use. Anthony Fauci, an infectious disease expert based in the US said “I do hope the Chinese and the Russians are actually testing the vaccines before they are administering the vaccine to anyone. Because claims of having a vaccine ready to distribute before you do testing is problematic at the very least”. Hence, some people are still in doubt regarding the safety of the product. Putin, however, rubbished such concerns and said "I know that it works quite effectively, forms strong immunity, and I repeat, it has passed all the needed checks".

An Indian biotechnological company, Bharat Biotech developed ‘Covaxin’ in collaboration with Indian Council for Medical Research (ICMR), using the mechanism of inactivated vaccine. It was successful in getting approval for human trials which were scheduled to begin in July, 2020. Initial reports stated that it would be ready for mass use by August 15, 2020, which also marked the 73rd Independence Day of India. However, Bharat biotech was clear in letting the public know that phase 1 of the trials are still on-going. ICMR cleared the confusion by stating that it would prepare the results of the phase 1 trials by August 15, 2020, not the actual vaccine for use. Phase 2 of the trials are awaited in September, 2020.

So far, the results of phase 1 trials have been positive as no serious side-effects are observed in the vaccine candidates. “The vaccine has been safe. No adverse effect has been reported. Even the point of injection pain, which is normal in vaccines, has been very mild” said Dr Kushwaha of Prakhar Hospital.

Meanwhile, the South Korean government stated on August 21, 2020, that it will secure adequate vaccine supply to its citizens by cooperating with international bodies and promoting local drug development. Three South Korean companies have started the process of making a vaccine and all are in the clinical trial phase. Bill Gates asserts that the South Korean pharmaceutical company, SK Bioscience, will have around 200 million vaccine doses ready by June 2021.

Japan is jointly collaborating with the UK, France and other European countries to establish a $20 billion fund to buy coronavirus vaccines, with Japan pledging a contribution of $800 million. It’s vaccine program aims to focus on giving primary attention to its medical workers and the elderly people of the country when the first doses of the vaccine are made. The state-funded vaccination program is believed to be officially adopted by Japan in September this year with negotiations with the UK and US based drug makers already in place.

With the race to bring COVID-19 vaccine seemingly coming to a close and it will hopefully be ready by the end of 2020 or early 2021. Till then, the entire world is watching this race with bated breath.

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