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 5:11 PM

Will Cloud Gaming take over the video gaming world?

Video gaming has evolved massively over the years with much better graphics, great storyline, and breathtaking visuals. The fun began with the 8-bit games Super Mario Bros and Contra and later by the arrival of PlayStation. In the 2000s, classics like GTA San Andreas and Portal came which were followed by Call of Duty, Assassin’s Creed, and GTA V.  Now with gaming competitions, eSports, and their likes, gaming has come a long way.

A still from Need For Speed | Source: Electronic Arts

Video gaming have now evolved in multiple genres like racing (Need for Speed), Parkour style (Assassin’s Creed), FPS shooters (Call of Duty and Halo), Horror (Resident Evil series), or Sports games like FIFA. The spread of video games can be gauged by the fact that the highest Football governing body FIFA is backing the FIFA series video games. Game Streaming has gone professional now, professional footballers like Sergio Aguero or current F1 drivers like Lando Norris and Charles Leclerc becoming the online gaming hero.

With the advent of cloud gaming, the industry is now at the cusp of its most radical change. Cloud Gaming aims to provide high-end gaming experience without the super expensive PC hardware which were needed earlier. A gamer now needs just a simple low-end PC or even a smartphone to enjoy high end gaming.

Google has taken the lead in cloud gaming service by launching “Stadia'', followed by Nvidia with “GeForce Now”. Microsoft, which is one of the heavy-hitters of console gaming via their Xbox series, is shortly launching their cloud gaming service xCloud for Android in 22 countries. So anyone with an Android phone and Xbox Game Pass Ultimate subscription, can enjoy the high quality online games on their smartphone.

Google Stadia Booth at Game Developers Conference 2019 | Source: Official GDC via Flickr

Cloud gaming comes with many advantages, the biggest of these is that there is no need to download a huge amount of data for running these games. Most games nowadays come with a download size exceeding 50 GB while some like Call of Duty: Warzone and Red Dead Redemption 2 even require around 100 GB download. Then there comes all the DLCs, patches which again need huge chunks of data. Cloud gaming eliminates it.

NVIDIA Titan RTX |Source: Nvidia

The second advantage is that the above-mentioned games can even run on an Android device. Also, don’t be concerned about the quality of resolution of these cloud-run games. Google Stadia can run games at 4K resolution at 60fps, which is even the limit of the current-gen consoles. They claim to further expand it to 8K at 120fps in the future, which is a quality that the best current Graphics card, the Nvidia Titan RTX hasn’t even reached.

However, with all the advantages, cloud gaming still has some basic shortcomings. The first one among them is the requirement of very high data bandwidth. The idea of playing games at 4K@60fps may seem fascinating, but that will need a steady high-speed bandwidth. For instance, Stadia lists that one needs at least 35 Mbps connection to accomplish the said frame rate and resolution.

The second bottleneck of cloud gaming is that it requires huge amounts of data to run games at such high quality. However the main reason inhibiting its wider adoption is the high cost associated with cloud gaming. For instance, Stadia costs $9.99/month, but it only comes with some select games available for free. Many other games like Assassin’s Creed series are available at Stadia, but these are to be purchased separately and at a price almost on par with the PC and Console version of the game. These shortcomings make one wonder if they are paying a much larger amount of money compared to if they purchased a gaming PC or console.

The world entering the age of 5G internet can be a catalyst to the growth of cloud gaming across the world. It can surely challenge the upcoming next-gen consoles, the Xbox Series X and the PlayStation 5 soon. Microsoft’s approach with its xCloud service looks to be going in sync with its PC and Xbox ecosystem. It will indeed be helpful to the gaming industry in the longer run.

So, the big question arises, can Cloud gaming take over the video gaming world? For the present, the answer is a clear NO! In the future, perhaps.

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