Bharat Rakshak

vsunder

17 Poona Horse Fakhr-e-Hind (The Hand of God!!) at the Shakargarh salient, the battle of Basantar. A very good documentary. This is the battle where Arun Khetrapal was awarded the PVC, posthumously: https://www.youtube.com/watch?v=_p2CVZuujnc https://en.wikipedia.org/wiki/17th_Horse_(Poona_Horse) Lt...

vsunder

Renders and work at Tirupati station re-development

https://twitter.com/RailMinIndia/status ... 80/photo/3

vsunder

^^^ EDFC trial took place yesterday in Punjab. First section of EDFC to open in Punjab: New Chawapail to Shambhu https://twitter.com/dfccil_india/status/1668517019959054336?cxt=HHwWgMDSxfbY4acuAAAA So not quite Ludhiana to Shambhu as the news article said ^^^^based on the interview with MD DFCCIL. N...

vsunder

Tyar Bar Tyar: 4 Horse, Hodson's Horse at the Battle of Jharpal 1971:

https://www.youtube.com/watch?v=VqWKrWsG254

vsunder

A short write up of mine %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% WHEN JESUS CHRIST FOUGHT FOR INDIA The 1965 Indo-Pak war saw some of the fiercest tank battles since WW2. WW2 is littered with tank and artillery duels like the Kursk salient battle between German and Soviet forces wi...

vsunder

Jewar International Airport is moving fast. ATC tower construction has started. There will be 2 runways in Phase 1 and 6 runways at the completion of all phases. Drone shots of the under construction 2 runways and terminal buildings. Once completed this airport will be the largest in Asia. https://w...

vsunder

My short write up on the Sela Tunnel %%%%%%%%%%%%%%%%%%%%%%%%%%%%% ALL WEATHER CONNECTIVITY TO TAWANG ESTABLISHED Tawang in Arunachal Pradesh was the scene of bitter fighting during the Sino Indian conflict of 1962. The Indian Army was hampered by poor roads and had to transport materiel by using pa...

vsunder

Contract Has been Signed on June 6th between AFCONS(INDIA) and NHSRCL(National High Speed Rail Corporation) for the construction of a 21km tunnel. Part of this tunnel about 7km goes under the intertidal waters of Thane creek so under the sea. This tunnel will carry the Bullet train out of Mumbai and...

vsunder

Sivaramakrishnan Pancharatnam Pancharatnam (1934-1969) is a name most Indians are unfamiliar with. He was a nephew of CV Raman and a brilliant physicist whose life was tragically cut short at the age of 35. He did profound work on the Polarization of Light by the age of 22(1956) and was literally t...

vsunder

THE FIBONACCI NUMBERS AND PARTITION QUESTIONS IN INDIAN MUSIC AND SANSKRIT POETRY Some time back I wrote this small note (see link at the end) of how the Fibonacci number sequence was investigated by Hindu mathematicians some 1300 years before Fibonacci. Fibonacci lived from 1170-1240CE in Pisa, It...

vsunder

This is not about Indians but a small historical note I wrote about Spectroscopy and tied to events in India. Unfortunately the pictures that went with this small note cannot be reproduced here. I had said something more about Vainu Bappu the prime mover later for observational astronomy in India wh...

vsunder

This video is a drone shot between Panvel and Kopar of WDFC. 1. It shows that tremendous amount of work is left by Tata Construction making it impossible to finish by Dec. 2024 the most recent deadline. The target date for completion of the entire WDFC has already been moved three times and the proj...

vsunder

The non-isotropy of the Earth and the media is quite profound. For the POK-2 test of May 11, seismic station BHPL Bhopal, recorded non-attenuated surface waves, but the seismic station at Ajmer AJMR recorded attenuated seismic surface waves. I asked Sikka about it, that Ajmer was close to the test s...

vsunder

There was no S-6 and all this is total nonsense spread by dumb fcks. Let me explain. First the general who dug those shafts never mentions that he dug two shafts, just one. So where is the additional shaft to test another device. Secondly on May 11th, there was a simultaneous detonation of the two d...

vsunder

Sela Tunnel and all weather Road to Tawang is now complete. As I said ^^^ June was given as the completion month. I suppose they will wait for a good time that is not Rahu Kalam or Gulige Kalam to have a mantriji open the Tunnel. https://arunachalobserver.org/2023/06/08/sela-tunnel-complete-bro-adg-...

vsunder

Just to show you how idiotic the Railways are with capacity augmentation. 219km third line Vijayawada to Kazipet on the Delhi to Chennai trunk route. See number 36 in this link, the project was sanctioned 2012-2013. https://scr.indianrailways.gov.in/cris//uploads/files/1438144370646-Annexure-1.pdf N...

vsunder

Some points: P waves travel with a speed square root {3} faster than S waves. Read my tutorial. J.F. Evernden's paper on Rayleigh waves and POK-2 is indeed in the journal Physics and Society volume 27, 1998, pages 10-11. My recollection was correct. Surface waves and in particular L_g waves which ar...

vsunder

The 175km EDFC single line section from Sahnewal(Ludhiana) to New Pilkhani near Saharanpur was targeted to open end June. But GMR missed multiple deadlines in the past. As I predicted they will run a freight June 10th between Sahnewal to Shambhu on the Punjab/Haryana border and declare a 81km sectio...

vsunder

I consider SCR among the better zones on IR whose construction department does better than other zones. They are doing Vijayawada to Gudur tripling. Even they have taken 9 years to triple 194km out of 294 km. End of this month they will finish Bapatla to Chirala another small section. Same Bapatla w...

vsunder

The Entire East Coast is a mess. I have been saying this repeatedly that the system has little capacity and lines have been running at 120% capacity. I even put put in a tutorial of how to use Scott's formula to calculate capacity on sections. In the Vande this and Vande that which is the sh**t post...

vsunder

Let me finish by giving a tight jhapad to all the sootiyas all over. When the 4.7 value on the "Richter" scale or mb scale was announced a value of 20kt was assigned to the Pokaran explosion initially, see article above and Wallace and company(for Wallace reference see the BRM article with...

vsunder

@RoyG This is an article written by Trevor Findlay to which Professor Roger Clark contributed as stated in the article. Note the article states that initially the Pokharan test was assigned a body wave magnitude of 4.7 (body wave means via S and P waves, see my tutorial) and then after more stations...

vsunder

The last point I wanted to add in my tutorial on Seismology is this: If you have ever solved the linear wave equation in n dimensions from a point source like an explosion, remember the formula for the solution is (r is the distance to the source) 1/ r^{(n-1)/2} times some exponential oscillatory fa...

vsunder

Here is a better way to explain the problem with seismic data. Take white light. Interpose a prism and that prism does Fourier Analysis because it broke up the light into its constituent frequencies. Now you put a piece of paper and you are an ant, a seismic station and you are the part where red li...

vsunder

1. First of all Santhanam nowhere said the test was a fizzle. In fact the Deccan Herald of Aug 27, 2009 clearly states for example as do other newspapers that Santhanam thought the yield of TN weapon was too low to fulfill the strategic needs of India. Thus Santhanam was advocating a test at the upp...

vsunder

@Ramana As I said before the Chinese were beyond Operation Sandstone and at Operation Ranger in their first test. The third series. And in that series the Baker test was below critical, fractional critical. Clever use of "air gap" made the fissile material supercritical. So instead of a 20...

vsunder

@Ramana Look up Operation Sandstone and Operation Ranger. Your question is answered there. It took the US what 7 years to get to Ranger. You will realize many things, in particular the quickness with which the Chinese exploded a TN device so quickly after their first N test. Ranger is the key to all...

vsunder

Here are some more questions 1. What happened to new DFCs that were proposed, East coast DFC, East to West DFC, has CCEA cleared them? 2. Bhanupali to Bilaspur (Himachal Pradesh line) under construction status, and status of this line onwards to Leh? Strategic line. 3. Bangalore Cantt to Whitefield ...

vsunder

OK to start things here is an interview with Mohinder Singh Project manager of Sivok--Rangpo line(Sikkim) 12,000 cr, Dec 2024 completion

https://www.youtube.com/watch?v=TeawMv-WLwU

vsunder

Instead of overly focusing on Vande Bharat all the time(incidentally tomorrow the Madgaon--Goa to Mumbai VB will be inaugurated) why don't people focus on strategic railway projects and supercritical projects?? Here is a list: 1. Sivok--Rangpo (Sikkim) railway line what is the progress, and on to Na...

vsunder

P. Balaram was the editor of Current Science when I sent in my article. When they sent me the galley proofs for checking after peer review, I noticed that Balaram had himself done some editing and put a note saying that what I had to say was important and would be read by many people so he had tried...

vsunder

This derailment is really sad and a repeat of the horrible accident at Khanna (between Ambala and Ludhiana) some years ago. Same scenario. Golden Temple Mail speeding at 3am towards Amritsar from Mumbai central derailed due to a broken rail. Several coaches piled on to the Up line where minutes late...

vsunder

@Ramana: Fourier Analysis was staring at everyone's face I am simply amazed that Harsh Gupta et al (he was at NGRI, Hyderabad) did not do anything about it. So that was the origin of the Current Science paper of mine. I copied the graphs from Gupta et al and just computed the "area" under ...

vsunder

For completeness and historical reasons the Summary paper on the May 1998 tests https://www.bharat-rakshak.com/archives/MONITOR/ISSUE3-6/ramana.html Seismic waves that travel through the Earth's core encounter discontinuities. One of the most famous is the Mohorovicic discontinuity(in short the Moho...

vsunder

@ Ashokk thanks. Yes now all the graphs and tables are there. Interestingly the article with Ramana and Thundyil has been quoted in “stink tank” publications in that era. Jack Evernden a seismologist who Ramana and I quote in our summary paper on the Pokharan tests, on BRM, did an analysis of Raylei...

vsunder

Unfortunately all the tables and graphs that accompanied my article seem missing. Sikka seemed most impressed as to how I had taken apart Sublette's argument of using data where there was a stemming failure. He asked me if Seismology was my field and I said no but I read enough of all the events tha...

vsunder

^^^ Yes that one. One of the difficulties I remember from 20 years ago was that I had no idea what the geomorphology was under Pokharan. Toman-Nordyke due to the "Sulky" event had fixed a scaling law based on an overlay of granite and formation of a retarc(reversed crater, crater reversed ...

vsunder

This jarnail is not saying anything new that I did not know. I had written an article "Cratering Phenomenology and Yield Estimation" in 2002 for the old Bharat Rakshak Monitor. Using scaling laws and work of Nordyke and pictures of the retarc in Chengappa's book I had explicitly said the s...

vsunder

Vande Bharat is no doubt important, but the MOST important thing is to meet the goals in this internal document of the Railways. Mission 3000 million tonnes of freight by 2027 and it is full of graphs. You have to bring down the cost of logistics from 14% of GDP to 8% of GDP. See the comparison bar ...

vsunder

Any day now Sela Tunnel to Tawang should become operational. June was the month for completion of the tunnels for all weather connectivity to Tawang. Meanwhile 5 tunnels on the Chandigarh to Manali road have been thrown open for trials( as per tweet of Shri Nitin Gadkari). These are between Ot and P...

Search found 1207 matches