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New book explodes myth about cost of instruments used by Sir C V Raman

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New book explodes myth about cost of instruments used by Sir C V Raman

~By Dr Hardev Singh Virk

It is a part of folklore about Indian science that Sir C V Raman made his Nobel-prize winning discovery in 1928 using instruments which cost just a few hundred rupees. A new book by a science historian has busted this myth.

Dr Rajinder Singh, a well-known historian of science, in his new book titled C.V. Raman’s Laboratory and Discovery of the Raman Effect, has brought to light certain hidden aspects of the Nobel laureate’s life and work. This is Singh’s third book on Raman.

The book provides full account of how Raman and his students created and perpetuated myth that Raman Effect was discovered by spending just 200 to 500 Indian Rupees. The myth was floated and publicized in national newspapers (The Bharat Joyti, National Herald, Indian News Chronicle) in 1940s and in the memoirs written by Raman’s students. It was projected that the facilities available at the Indian Association for Cultivation of Science (IACS), Calcutta, where Raman did his experimental work, were poor.New book explodes myth about cost of instruments used by Sir C V Raman

In newspaper interviews Raman himself spoke about poor facilities available for Indian scientists. The cost of equipment used by Raman, as mentioned in newspaper articles, ranged between Rs 200 and Rs 500. Raman’s biographer and one of his former students, A. Jayaraman, wrote that “the equipment which Raman employed for the discovery was very simple and amounted to a total cost of 500 Rupees at the time.”

The new book provides a detailed list of instruments used by Raman with their cost. Their total cost has been worked out to be Rupees 7630, excluding money spent on chemicals, which cost a handsome amount those days. It details the circumstances and instruments used during discovery of Raman Effect step by step on the basis of the diary of his co-scientist K S Krishnan from February 16, 1928 onwards. The chapter is a compendium of instruments such as mercury lamps, light filters, spectroscopes and other accessories required for Raman’s investigations leading to his discovery and the Nobel Prize.

Raman started his research activity in 1907 at IACS and it included areas as diverse as acoustics, optics, X-rays, and crystallography. His research team included the best talent available in India, as shown in the book. The library of IACS subscribed to 100 popular scientific journals from Europe. Thus the research facilities were not only adequate but almost ‘unlimited’, according to the author. It was Raman’s dream to make IACS an international centre of research in India.

“Raman had a huge team of 36 trained researchers; well-equipped laboratories and workshops, and his own journal. Thus under these circumstances, it is wrong to tell that Raman worked under ‘poor’ conditions,” the book has pointed out.

In the chapter titled “Instruments for the Discovery of Raman Effect”, Singh laments that “as far as India is concerned, the history of scientific instruments is relatively unknown. Even the instruments ‘made’ or bought by renowned physicists like C V Raman, M N Saha and S N Bose have not been properly preserved”.

The book points out that Raman was in the habit of complaining about poor conditions, especially after his visits to European laboratories. In a letter written to the Registrar of Calcutta University, he boasted: “From the experience I have gained in travelling in different parts of the world and visiting the great centres where experimental research in physics is carried on, I can assert without hesitation that the facilities available to the Palit Professor of Physics for the carrying on his duties at the College of Science are miserable in the extreme.”

Besides the instruments used by Raman, the book provides an account of Raman’s general activities as a faculty member, his opponents at the University of Calcutta and the international honours received by him as Palit Professor.

Asutosh Mookerjee, an educationist and judge who later became Vice Chancellor of Calcutta University, was a staunch supporter of the scientist. Raman was made Palit Professor of Physics even when he had no foreign research degree equivalent to D.Sc and that too on his own terms and conditions against the rules of the University. However, Raman proved his worth by winning a Nobel Prize in 1930.

Raman was provided “Ghose Travelling Fellowship” under which he could visit most of the research laboratories in Europe, USA and Canada. He wrote a proposal for expanding his research activities after such visits which was rejected by the university. He wanted to change rules for Ph.D. registration but the University Senate did not approve the idea. Raman fully participated in university administration and accepted assignments in various academic bodies of the university. He preferred Bengali as medium of instruction over Sanskrit.

The most interesting section in the book talks about Raman’s so-called opponents at the university. In one instance, Raman annoyed J C Bose by offering higher salary to his trustworthy mechanic to uproot him from the Bose Institute. Raman was highly critical of research work of J C Bose and did not spare a moment to criticise him even after his death. The other scientists of the Calcutta School who did not see eye to eye with Raman were M N Saha, B S Guha, U N Brahmachari and Ganesh Prasad. The author has revealed his acumen to bring to light the reasons for the conflict between the dons of Calcutta University and Raman.

Ultimately, all opposition to Raman fizzled out after he got international honours as Palit Professor. He was conferred the Fellowship of Royal Society London, Knighthood of British Empire, and the highest award in Physics, the Nobel Prize. I want to finish my review with brilliant but somewhat sarcastic remarks of Arnab Ray Choudhury: “Raman as a scientist possessed many extraordinary qualities – brilliance of mind, astute intuition, dogged determination, tenacity, an almost unbelievable capacity for hard work – certainly modesty was not one of his qualities”. (India Science Wire)

About the book

Author: Rajinder Singh, University of Oldenburg, Germany

Publisher: Shaker Verlag GmbH, Aachen, Germany

Year of Publication: 2018; Price: 21.90 Euro; Pages: xvi + 153.

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Samsung Galaxy S25 Ultra and iPhone 16 Pro Max: A comparative look at prices and specs in India

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Samsung Galaxy S25 Ultra with car crash detection feature

Samsung has introduced its latest high-end flagship, the Galaxy S25 Ultra, in India, igniting a new chapter in its ongoing rivalry with Apple’s iPhone 16 Pro Max. Both phones represent the pinnacle of smartphone technology, but they come at distinct price points and offer different specifications that cater to various user preferences.

Price comparison in India

The Galaxy S25 Ultra is available in three variants: the base model with 256GB of storage is priced at Rs 1,29,999; the 512GB model at Rs 1,49,999; and the 1TB version at Rs 1,65,999. These variants are offered in four color options: Titanium Silver Blue, Titanium Gray, Titanium White, and Titanium Black.

In contrast, the iPhone 16 Pro Max starts at Rs 1,44,900 for the 256GB model, with the 512GB and 1TB versions priced at Rs 1,64,900 and Rs 1,84,900, respectively. Samsung’s offerings are notably less expensive across similar storage options, with the 1TB model being nearly Rs 19,000 cheaper than its Apple counterpart.

Specifications face-off

The Samsung Galaxy S25 Ultra boasts a 6.9-inch display, slightly larger than its predecessor, and features a more contemporary design with rounded edges. Despite its larger size, it maintains a lightweight feel at only 218 grams and includes a robust 5,000mAh battery. The camera setup has been significantly upgraded, featuring a 200-megapixel primary sensor paired with a 50-megapixel ultra-wide and a 50-megapixel telephoto lens. It is powered by the Snapdragon 8 Elite for Galaxy, enhancing both efficiency and performance.

The iPhone 16 Pro Max, also with a 6.9-inch display, utilizes Apple’s Super Retina XDR technology with Always-On and ProMotion features for a superior viewing experience. It includes a new gold color option and a novel Camera Control button, adding functionality exclusive to the Pro models. The device is equipped with the A18 Pro chipset and features a redesigned camera system with a 48-megapixel primary sensor and advanced video recording capabilities.

Performance and functionality

Both the Galaxy S25 Ultra and the iPhone 16 Pro Max are designed to offer top-tier performance. Samsung’s flagship includes 12GB of RAM, compared to the iPhone’s 8GB, potentially offering a smoother multitasking experience. The iPhone, however, continues to impress with its integration of hardware and software, leading to efficient performance in real-life usage scenarios.

This detailed examination highlights the strengths of each device, allowing consumers to make an informed decision based on their specific needs and preferences. Whether prioritizing camera technology, display features, or price, the Samsung Galaxy S25 Ultra and iPhone 16 Pro Max cater to all facets of premium smartphone requirements.

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Oppo Find N5 set to launch with 50W wireless charging and IPX9 water resistance

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Oppo Find N5 being tested underwater to showcase its IPX9 water resistance rating.

Oppo has officially confirmed that its latest innovation, the Find N5, will support 50W wireless charging and feature an IPX9 water resistance rating. The announcement comes as part of a series of teases highlighting the capabilities of this next-generation foldable smartphone, set to launch in February.

According to recent leaks, the Find N5 will be the first smartphone to incorporate the Qualcomm Snapdragon 8 Elite SoC, signaling significant performance enhancements. Pete Lau, Oppo’s Chief Product Officer, has touted the device as the “thinnest foldable phone,” positioning it against leading competitors like the latest iPhone in terms of sleek design.

Zhou Yibao, head of the Oppo Find series, shared insights via Weibo about the Find N5’s advanced features. The device not only matches the wireless charging speeds of newly released models like the Oppo Find X8 Pro and OnePlus 13 but also integrates seamlessly with in-car systems from major electric vehicle brands such as BYD and NIO.

In a compelling demonstration of its durability, a recent video posted by Yibao showed the Find N5 being submerged underwater, showcasing its capability to withstand significant water exposure, evidenced by its IPX9 rating. This test included recording underwater videos, highlighting the phone’s versatile camera capabilities in extreme conditions.

The Find N5 also sports a refined design with slimmer borders and a larger overall form factor compared to its predecessors, which could attract users looking for a sleek yet robust foldable phone.

As anticipation builds, Oppo has begun sharing images of the Find N5, revealing a foldable design as thin as a USB-C port when opened. This device promises to merge aesthetic appeal with functional excellence, setting a new benchmark in the evolving foldable phone market.

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Realme 14 Pro series set to launch in India tomorrow: Expected specs, price, and more

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Realme 14 Pro series launch with AMOLED display, Snapdragon 7s Gen 3 processor, and advanced camera setup.

Realme is gearing up to unveil its latest mid-range smartphones, the Realme 14 Pro series, in India on January 16, 2025. The much-anticipated event will also mark the launch of Realme Buds 5 wireless earphones, adding to the excitement among tech enthusiasts.

When and where to watch the launch

The Realme 14 Pro series will be launched at 12 noon on Thursday, January 16. Fans can catch the live-streamed event on Realme’s official YouTube channel.

Realme 14 Pro series specifications (Expected)

The Realme 14 Pro series, including the Realme 14 Pro and Realme 14 Pro+, has already been introduced in China, offering a sneak peek into its features.

The Realme 14 Pro boasts a 6.83-inch Full HD+ AMOLED display with a 120Hz refresh rate and an impressive 3840Hz PWM dimming for superior visuals. Under the hood, the smartphone is powered by the Snapdragon 7s Gen 3 processor, coupled with up to 12GB LPDDR4X RAM and 512GB UFS 3.1 storage. It is expected to run on Android 15 with Realme UI 6.0.

For photography, the device offers a triple-camera setup featuring a 50MP Sony IMX896 primary sensor with OIS, an 8MP ultra-wide lens, and a 50MP Sony IMX882 periscope telephoto lens with up to 6x in-sensor zoom. The front houses a 32MP selfie camera.

Additional features include an in-display fingerprint sensor, IP66, IP68, and IP69 water resistance certifications, and a robust 6,000mAh battery with 80W SuperVOOC fast charging.

Realme 14 Pro+ pricing (Expected)

The Realme 14 Pro+ is expected to be priced at approximately Rs 30,000 for the 12GB RAM/256GB storage variant and Rs 33,000 for the 12GB RAM/512GB version, based on its Chinese pricing of 2,599 yuan and 2,799 yuan, respectively.

As more details about the Realme 14 Pro surface, all eyes will be on tomorrow’s launch event for official specifications and pricing.

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