Saturday, July 25, 2020

Physics and Technological Revolutions

This article is by

Share this article

Article Contributor(s)

Oem Trivedi

Article Title

Physics and Technological Revolutions

Publisher

Global Views 360

Publication Date

July 25, 2020

URL

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.

Support us to bring the world closer

To keep our content accessible we don't charge anything from our readers and rely on donations to continue working. Your support is critical in keeping Global Views 360 independent and helps us to present a well-rounded world view on different international issues for you. Every contribution, however big or small, is valuable for us to keep on delivering in future as well.

Support Us

Share this article

Read More

February 4, 2021 4:43 PM

Sweden’s No Lockdown Policy: How That Changed The Outcome

Sweden has gone against conventional wisdom in its response to the COVID-19 situation. While the neighbouring countries like Denmark, Finland and Norway imposed strict lockdown on the places and services frequented by the public, Sweden has chosen to not do so at all during the initial phases when COVID-19 started taking the shape of a worldwide pandemic. The public places like Cafes, restaurants, gyms, malls, playgrounds, ski slopes and some of the schools were kept open all across Sweden.

The country’s fight against the threat of pandemic was handled exclusively by the Public Health Authority, with no political interference. They believed that a lockdown only serves to delay the virus, which is not necessary since the health services are equipped to deal with the cases. They also made it clear that achieving herd immunity is also not their aim. The public authorities in Sweden instead relied on the public's sense of responsibility, and appealed to them to do frequent hand washing, observe social distancing and keep people over 70 years old from going out.

The state epidemiologist, Anders Tegnell, made multiple statements about the state’s unusual approach, such as 1) “Once you get into a lockdown, it’s difficult to get out of it,”, “How do you reopen?  When?” 2) “There is no evidence whatsoever that doing more at this stage would make

any difference. It’s far better to introduce stringent measures at very specific intervals, and keep them running for as little time as possible” , 3) " As long as the healthcare system reasonably can cope with and give good care to the ones that need care, it's not clear that having the cases later in time is better”.

The assumption of public responsibility did not work for Sweden and there were people out on the streets, in cafes, restaurants and playgrounds. Not wearing a mask was the social norm instead of the reverse. The models for charting the virus spread given by the concerned authorities also turned out to be faulty forcing them to rescind it. Over 2000 Swedish researchers and doctors signed a petition which claimed that there was not enough testing,tracking or isolation in the country. They believed that the authority has clearly not planned their response and that the authority’s claim for herd immunity has very little scientific basis, even though the government has repeatedly claimed that herd immunity is not what they were aiming for.

Sweden’s lax approach to the combating of coronavirus forced its neighbouring Scandinavian countries to close the border for the Swedish citizens. Some of the Swedish officials were worried for the possible harm to the long term relations between Sweden and its neighbours.  Also, the plan of letting life go on as usual to avoid the economic recession occurring due to a lockdown also failed as it didn’t shield  the country from economic slowdown.

Here comes the question; was the lockdown successful or not? There are some comparisons that have been drawn which indicate more deaths per 100,000 people than in nearby countries with homogenous population, even though it is significantly lesser than some of the European countries. While the infections rates are double that of Denmark, the death rates in comparison are much higher. This difference has been attributed to the fact that approximately half of these deaths have occurred in old care homes despite the stated priority of the officials to protect the elderly. This has been in part to the volunteer program, which replaced symptomatic old age home cares with new volunteers, hence increasing exposure. Another factor is the lack of protective equipment in such homes, along with laws preventing administration of medical procedures without the presence of doctors. There were reports of people threatened with lawsuits for banning visitors.

All of this led to Mr.Tegnell claiming that the ideal policy would have been something between what Sweden adopted and what the other countries did, in the light of what they know now. However this claim of Mr.Tegnell will be put to test when the second wave comes, later in time.

Read More