Monday, September 28, 2020

Bhagat Singh: The Man, The Life, And The Beliefs

This article is by

Share this article

Article Contributor(s)

Vanshita Banuana

Article Title

Bhagat Singh: The Man, The Life, And The Beliefs

Publisher

Global Views 360

Publication Date

September 28, 2020

URL

21 year old Bhagat Singh's photograph

21 year old Bhagat Singh's photograph

Bhagat Singh is one of the ‘big names’ immortalised in the history of India’s freedom struggle and eternally cherished even after almost ninety years of his martyrdom. What makes him stand out is his popularity among the masses being almost on par with the likes of Mahatma Gandhi and Jawaharlal Nehru, despite his beliefs and actions being diametrically opposite to theirs.

Of the freedom fighters who remain mainstream in today’s India— a crowd predominantly made up of politicians with center or right of centre leanings, Bhagat Singh occupies a relatively lonely spot as a young, staunchly left-wing revolutionary who outrightly rejected Gandhi’s philosophy, and preferred direct action over politics.

Newspaper headline after Central Legislative Assembly non-lethal bombing

Bhagat Singh is most commonly and widely remembered in association with an incident where he, along with his friend and comrade B.K. Dutt dropped non-lethal smoke bombs into the Central Legislative Assembly from its balcony in 1929. They also scattered leaflets by the Hindustan Socialist Republican Association (HSRA), which he was a major part of and was aided by in orchestrating the bombings. He is said to have been inspired by French anarchist Auguste Vaillant, who had bombed the Chamber of Deputies in Paris in 1893.

The bombing gathered widespread negative reaction due to the use of violence, especially from those who supported the Gandhian method. While Bhagat Singh and the HSRA wanted to protest exploitative legislatures such as the Public Safety Act and the Trades Disputes Bill, it is also widely accepted that they additionally intended to use the drama and public attention of the ensuing trial to garner attention to socialist and communist causes. Bhagat Singh and Dutt did not escape under the cover of panic and smoke despite the former carrying a pistol, and waited for the police to find and arrest them. During the trial Bhagat Singh frequently chanted a variety of slogans, such as ‘Inquilab Zindabad,’ which is even today often raised in protests across India.  

March 25th Newspaper carrying the news about execution of Bhagat Singh | Source: Tribune India

However, this was not the trial that ended in Bhagat Singh receiving his execution sentence. Before the Assembly bombings, Bhagat Singh had been involved in the shooting of police officer John Saunders, in connection to the death of freedom fighter Lala Lajpat Rai. At that time he and his associates had escaped, but after Bhagat Singh was awarded a life sentence for the Assembly bombing, a series of investigations led to his rearrest as part of the Saunders murder case. It was this trial— generally regarded as unjust— that led to his much protested execution sentence.

Bhagat Singh was hanged to death on the eve of March 23rd, 1931 and he was just twenty-three years old.

Despite the criticism he received for his actions, his execution sentence was widely opposed and many attempts were made to challenge it. In fact, his execution came on the eve of the Congress party’s annual convention, as protests against it worsened. He was memorialised nationwide as a martyr, and is often addressed with the honorific Shaheed-e-Azam Bhagat Singh.

Apart from being a socialist, Bhagat Singh was attracted to communist and anarchist causes as well. In ‘To Young Political Workers,’ his last testament before his death, he called for a “socialist order” and a reconstruction of society on a “new, i.e, Marxist basis.” He considered the government “a weapon in the hand of the ruling class”, which is reflected in his belief that Gandhian philosophy only meant the “replacement of one set of exploiters for another.” Additionally, he wrote a series of articles on anarchism, wanting to fight against mainstream miscontrusions of the word and explain his interest in anarchist ideology.

Bipin Chandra, who wrote the introduction to Why I am an Atheist by Bhagat Singh | Source: Wikimedia

While writing the introduction to Bhagat Singh’s remarkable essay Why I am an Atheist in 1979, Late Bipan Chandra described the Marxist leaning of Bhagat Singh and his associates in the following way;

Bhagat Singh was not only one of India’s greatest freedom fighters and revolutionary socialists, but also one of its early Marxist thinkers and ideologues. Unfortunately, this last aspect is relatively unknown with the result that all sorts of reactionaries, obscurantists and communalists have been wrongly and dishonestly trying to utilise for their own politics and ideologies the name and fame of Bhagat Singh and his comrades such as Chandra Shekhar Azad.”

Bhagat Singh is often admired and celebrated for his dedication to the cause of liberation. However his socialist, communist and anarchist beliefs were suppressed by the successive governments in Independent India. This in a way is the suppression of a revolutionary who has the potential to inspire, unite and motivate the growing population of a spectrum of activists all over India, in direct response to the fast-spreading divisiveness and intolerance in the country, often patronised by the groups and organizations professing the right-wing fascist ideology.

Bhagat Singh’s dreams of a new social order live on, not just in his writings, but also reflected in the hearts of every activist, protester, and dissenting citizen. The fight for freedom, revolution, Inquilab, may have changed in meaning, but it is far from over.

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

April 13, 2021 2:10 PM

Detecting The Ultra-High Energy Cosmic Rays With Smartphones

Smartphones have become the most commonplace objects in our daily lives. The unimaginable power that we hold in our hands is unrealized by most of us and, more importantly, untapped. Its creativity often gets misused but one can only hope that it’s fascinating abilities would be utilized. For example, did you know that the millions of phones around the globe can be connected to form a particle detector? The following article covers the CRAYFIS (Cosmic RAYs Found in Smartphones) phone-based application developed by the physicists from the University of California—Daniel Whiteson, Michael Mulhearn, and their team. CRAYFIS aims to take advantage of the large network of smartphones around the world and detect the cosmic or gamma rays bursts which enter the Earth’s atmosphere almost constantly.

What Are Cosmic Rays?

Cosmic rays are high velocity subatomic particles bombarding the Earth’s upper atmosphere continuously. Cosmic ray bursts have the highest energy compared to all forms of electro-magnetic radiation. When we say ultra-high energy particles (energy more than 1018^eV), we mean two million times more energetic than the ones that can be produced by the particle colliders on Earth.  These rays are thought to be more powerful than typical supernovae and can release trillions of times more energy than the Sun. They are also highly unpredictable as they can enter Earth’s atmosphere from any direction and the bursts can last for any period of time ranging from a few thousand seconds to several minutes.

Despite many theoretical hypotheses, the sources of these ultra-high energy cosmic rays are still a mystery to us even after many decades of their discovery. These rays were initially discovered in the 1960’s by the U.S. military when they were doing background checks for gamma rays after nuclear weapon testing. Cosmologists suggest that these bursts could be the result of super massive stars collapsing - leading to hypernova; or can be retraced to collisions of black holes with other black holes or neutron stars.

How Do We Detect Them?

When the high-energy particles collide with the Earth’s atmosphere, the air and the gas molecules cause them to break apart and create massive showers of relatively low-energy particles. Aurora borealis i.e., the Northern and the Southern lights are the lights that are emitted when these cosmic rays interact with the Earth’s magnetic field. Currently, these particles are hitting the Earth at a rate of about one per square meter per second. The showers get scattered to a radius of one or two kilometers consisting mostly of high-energy photons, electrons, positrons and muons. But the fact that these particles can hit the Earth anytime and anywhere is where the problem arises. Since the Earth has a massive area, it is not possible to place a detector everywhere and catch them at the exact moment.

Energetic charged particles known as cosmic rays hit our atmosphere, where they collide with air molecules to produce a shower of secondary particle | Source: CERN

Detecting such a shower requires a very big telescope, which logically means a network of individual particle detectors distributed over a mile or two-wide radius and connected to each other. The Pierre Auger Observatory in South America is the only such arrangement where 1,600 particle detectors have been scattered on 3,000 square kilometers of land. But the construction cost of the same was about $100 million. Yet, only a few cosmic ray particles could be detected using this arrangement. How do we spread this network around the Earth?

In addition to being cost-effective, such a setup must also be feasible. The Earth’s surface cannot possibly be dotted with particle detectors which cost huge fortunes. This is where smartphones come into the picture.

Detecting The Particles Using Smartphones

Smartphones are the most appropriate devices required to solve the problem. They have planet wide coverage, are affordable by most people and are being actively used by more than 1.5 billion users around the planet. Individually, these devices are low and inefficient; but a considerably dense network of such devices can give us a chance to detect cosmic ray showers belonging to the highest energy range.

Previous research has shown that smartphones have the capability of detecting ionizing radiation. The camera is the most sensitive part of the smartphone and is just the device required to meet our expectations. A CMOS (Complementary Metal Oxide Semiconductor) device is present in the camera- in which silicon photodiode pixels produce electron-hole pairs when struck by visible photons (when photons are detected by the CMOS device, it leaves traces of weakly activated pixels). The incoming rays are also laced with other noises and interference from the surroundings.  Although these devices are made to detect visible light, they still have the capability of detecting higher-energy photons and also low-ionizing particles such as the muons.

A screenshot from the app which shows the exposure time, the events- the number of particles recorded and other properties

To avoid normal light, the CRAYFIS application is to be run during nighttime with the camera facing down. As the phone processor runs the application it collects data from its surroundings using a camera as its detector element. The megapixel images (i.e., the incoming particles) are scanned at a speed of 5 to 15 frames per second, depending on the frame-processing speed of the device. Scientists expect that signals from the cosmic rays would occur rarely, i.e., around one in 500 frames. Also, there is the job of removing background data. An algorithm was created to tune the incoming particle shower by setting a threshold frequency at around 0.1 frames per second. Frames containing pixels above the threshold are stored and passed to the second stage which examines the stored frames, saving only the pixels above a second, lower threshold.

The CRAYFIS app is designed to run when the phone is not being used and when it is connected to a power source. The actual performance would be widely affected by the geometry of the smartphone’s camera and the conditions in which the data is being collected. Further, once the application is installed and is in the operating mode, no participation is required from the user, which is required to achieve wide-scale participation. When a Wifi connection is available the collected data would be uploaded to the central server so that it could be interpreted.

There is much complicated math used to trace back the information collected from the application. The most important parameters for the app are the local density of incoming particles, the detection area of the phone and the particle identification efficiency. These parameters are used to find the mean number of candidates (photons or muons) being detected. Further, the probability that a phone will detect no candidates or the probability that a phone will detect one or more candidates is given by Poisson distribution. The density of the shower is directly proportional to the incident particle energy with a distribution in x and y sensitive to the direction in which the particle came from. An Unbinned Likelihood (it is the probability of obtaining a certain data- in this case the distribution of the cosmic rays including their energy and direction, the obtained data is arranged into bins which are very, very small) analysis is used to determine the incident particle energy and direction. To eliminate background interference, a benchmark requirement has been set that at least 5 phones must detect and register a hit to be considered as a candidate.

It is impossible to express just how mind-blowing this innovation is. As the days pass, Science and Technology around us keep on surprising us and challenge us to rack our brains for more and more unique ways to deal with complex problems. The CRAYFIS app is simply beautiful and it would be a dream-come-true to the scientists if the project works out and we are able to detect these high energy, super intimidating cosmic rays with smartphones from our backyard.

Further Reading

The paper by Daniel Whiteson and team can be found here.

An exciting book “We Have No Idea” by Daniel Whiteson and cartoonist Jorge Cham can be found here.

The CRAYFIS app can be found here.

Read More