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by SriKumar
15 Dec 2018 22:15
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

^^^ two million atmospheres of pressure..!! They got this by crushing the material between two diamonds. A lab experiment really.
by SriKumar
02 Dec 2018 20:41
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

Is the infrared material as good as claimed? Virtually undetectable by an IR camera is a difficult thing..... I did not google this but am curious as to whether this material has a low thermal conductivity, or high specific heat (or both). In effect they have made a good thermal insulator? Heat 'abs...
by SriKumar
02 Dec 2018 20:33
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 2921
Views: 357454

Re: Indian Railways Thread (Dec 2015)

we really need to get cracking on the fencing plans. all it needs is a tractor or truck trying to sneak across to cause a major accident. the driver is being forced to overuse the horn as a precaution, causing noise pollution. at night even more risky. with fencing in place he need to blow horn onl...
by SriKumar
17 Nov 2018 15:57
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

Given what the KL government has done in the past weeks, Are there Hindus in Kerala who still believe the KL communist party is not anti-Hindu.
by SriKumar
16 Nov 2018 06:35
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

In the English version, words facilities and decades are misspelled. Further it say 'money weout in the hundi'....for money we 'put in the hundi. One comment: any devotee reading this pamphlet....how would he know who is creating/distributing the pamphlet? and that the pamphlet creators are genuine ...
by SriKumar
15 Nov 2018 18:14
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Program: News & Discussion - Sept 2016

https://www.isro.gov.in/sites/default/files/flipping_book/GSLV_Mk_III_D2_GSAT_29/files/assets/common/downloads/GSLV%20Mk%20III%20-%20D2%20.pdf Details on Launch Vehicle, Satellite, flight path including times, and Very Good Graphics. The final position of the satellite in GSO will be over Iran roug...
by SriKumar
14 Nov 2018 16:59
Forum: Technology & Economic Forum
Topic: Civil Aviation Development & Discussion
Replies: 4735
Views: 352115

Re: Civil Aviation Development & Discussion

testing any SW, let alone the worlds premier FCS sw against a barrage of creative negative inputs is part and parcel of any cycle. calls into question if the FCS was ever tested for this failure of input data stream ....and what other such uncaught bugs lurk. sw bug also happened in that Qantas a30...
by SriKumar
06 Nov 2018 15:24
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

Hats off to Kl devotees and women in particular who were protesting against a right given to them. Hats-off to both groups, KL men, women- yes. Women were protesting against a right given to them? beg to differ. A decision (based on partial or incomplete knowledge of tradition) was given in their n...
by SriKumar
05 Nov 2018 05:28
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

Somehow I was expecting the Muslims in Kerala to support the Hindus here by vocally opposing the verdict. It is a golden opportunity for them to tell the govt to stay out of religion. But they are silent. Any idea why? Is it because they don't want to 'interfere' in a Hindu controversy?.
by SriKumar
04 Nov 2018 10:42
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

The above is a limited version of what you wrote. I think you understand enough Hindi to know what has been written. It is not eloquent or detailed, so if you get a better version, go for it. (Other Hindi-speakers, feel free to edit and modify.) It is on you that what you have written above (which w...
by SriKumar
04 Nov 2018 10:23
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

Dileep Wait for explanation- प्रिय अयप्पा भक्त केरल सरकार और देवस्वाम बोर्ड द्वारा किए गए कार्यों सदियों से चल रही परंपराओं के खिलाफ है। अयप्पा भक्त, कृपया अयप्पा मंदिर में आएं और पूजा करें। कृपया 41-दिन की तपस्या और अनुष्ठानों का पालन करें। नारियल-घी और सिक्का के पारंपरिक प्रसाद दें। हालांकि हुंडी ...
by SriKumar
03 Nov 2018 03:41
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

Dileep I understand now. The context was missing in the Hindi version, probably because your note had to be concise. IMHO, The Hindi version needs perhaps -one- more line saying why the devotees should not drop money. In other words Devaswon will misuse it and more importantly The bigger issue is th...
by SriKumar
02 Nov 2018 14:32
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

Dileep- oru suggestion. Why don't you write your message in English and post it here. The local language people here will do a translation with the right context and idiom appropriate to their language. I read the Hindi part and the message was not super clear to me.....don't take any gift, not even...
by SriKumar
27 Oct 2018 20:01
Forum: Strategic Issues & International Relations Forum
Topic: Kerala Floods - Aftermath and Save Sabarimala
Replies: 1871
Views: 103735

Re: Kerala Floods - Aftermath and Save Sabarimala

So, what would be an exact translation in spirit to Amit Shah's warning: "मैं मुख्यमंत्री विजयन को चेतावनी देने आया हूँ...... तो BJP के कार्यकर्ता आपके सरकार की ईंट से ईंट बजा देंगे" What exactly is this brick by brick thing? THe last line translates metaphorically as: I am warning CM Vij...
by SriKumar
18 Oct 2018 06:52
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

Is it possible to calibrate a more precise instrument (e.g.a LIGO) with a less precise instrument (e.g. vibration/seismic detectors). If you are aware of any specific literature on this process for LIGO, I am interested. The Caltech MIT link said that active control of the pendulum system is monito...
by SriKumar
14 Oct 2018 00:13
Forum: Military Issues & History Forum
Topic: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
Replies: 3022
Views: 630741

Re: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018

^^^There is some stuff published on work done for Saras- it is in public domain. Very impressive actually.
by SriKumar
29 Sep 2018 23:27
Forum: Technology & Economic Forum
Topic: Civil Aviation Development & Discussion
Replies: 4735
Views: 352115

Re: Civil Aviation Development & Discussion

It is unbelievable to me that it was allowed to fly (and worse, enter service). If it was allowed to fly the next day, I would assume that neither FAA or Boeing personnel had a chance to examine it. Trying to find a proximate (and root) cause of multiple systems failure (some unrelated like ILS and...
by SriKumar
29 Sep 2018 20:57
Forum: Technology & Economic Forum
Topic: Civil Aviation Development & Discussion
Replies: 4735
Views: 352115

Re: Civil Aviation Development & Discussion

It is unbelievable to me that it was allowed to fly (and worse, enter service). If it was allowed to fly the next day, I would assume that neither FAA or Boeing personnel had a chance to examine it. Trying to find a proximate (and root) cause of multiple systems failure (some unrelated like ILS and ...
by SriKumar
28 Sep 2018 09:25
Forum: Technology & Economic Forum
Topic: Civil Aviation Development & Discussion
Replies: 4735
Views: 352115

Re: Civil Aviation Development & Discussion

They seems to have spent time in trying to land at JFK while systems failed one by one that might explain why it went low on fuel. Also for diversion, you not only needs to reach there but should have enough fuel to do couple of passes in case you may not be able to land in very first attempt. Sinc...
by SriKumar
28 Sep 2018 07:28
Forum: Technology & Economic Forum
Topic: Civil Aviation Development & Discussion
Replies: 4735
Views: 352115

Re: Civil Aviation Development & Discussion

I wonder why they didn't declare an emergency. I've been binge-listening to ATC recordings and transcriptions here - https://www.youtube.com/user/victor981994/videos - noticed that less serious issues got the pilots to declare an emergency (I guess to get priority on airspace movements and landing)...
by SriKumar
27 Sep 2018 08:30
Forum: Military Issues & History Forum
Topic: Mangalyaan : ISRO's Mars Orbiter Mission
Replies: 2751
Views: 94628

Re: Mangalyaan : ISRO's Mars Orbiter Mission

At that time (and placement of Mars relative to earth in 2013) the time for one-way travel of signal was 8 minutes- quoting from memory here. There are some technically incorrect things...one guy talks about escape velocity. The craft did not reach escape velocity (it does not need to). Then he says...
by SriKumar
25 Sep 2018 07:37
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Program: News & Discussion - Sept 2016

Sure. Will read what you write, Amber.G.
One thing that's interesting is that the linear velocity of earth's surface will keep changing as the satellite traverses north to south and back....so if the satellite wants to stick to one particular longitude it will have to constantly correct for it.
by SriKumar
22 Sep 2018 16:54
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Program: News & Discussion - Sept 2016

^^^ Why would the location make a difference to the payload? As far as I can see, the launches from Guj. or TN would be in a polar orbit, since there is land on the eastern side (for both locations). For polar orbits, I dont think proximity to equator matters, does it? Earth's rotational push is use...
by SriKumar
19 Sep 2018 07:30
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Program: News & Discussion - Sept 2016

Agree with the need to shut up T-5 min to satellite ejection. They can talk technical details prior to T-10 or T-5 min. If there's any way to get the word out to ISRO on this point I would like to petition them......I prefer to hear 'parfaarmans naarmal' to the 'vimaan ka pratham charan ab prajwalit...
by SriKumar
15 Sep 2018 19:59
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Program: News & Discussion - Sept 2016

More details of SSLV. Credit to pgoi (on redditt) . Interesting that the fins control roll. So, are they active? I assume they are active, not sure though. The last-but-one slide talks about roll control for 2nd and 3rd stages, yet there are no fins on these stages. So what's controlling the roll t...
by SriKumar
15 Sep 2018 19:43
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Program: News & Discussion - Sept 2016

Very informative set of slides, Indranil. Thanks for posting.
Materials, construction, dimensions, propellant quantity, thrust are all provided (even schedule).
by SriKumar
02 Sep 2018 19:56
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

Is it possible to calibrate a more precise instrument (e.g.a LIGO) with a less precise instrument (e.g. vibration/seismic detectors). If you are aware of any specific literature on this process for LIGO, I am interested. The Caltech MIT link said that active control of the pendulum system is monitor...
by SriKumar
02 Sep 2018 19:19
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

Thanks for the clarifications. I was just trying to understand the time-varying aspect of the fringe pattern. The LIGO should be oscillating back and forth due to the gravitational wave, and this changes the fringe pattern as a function of time. Fringes are a essentially a spatial variation of light...
by SriKumar
01 Sep 2018 08:10
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

Another link which is good is from Caltech's lecture.. https://labcit.ligo.caltech.edu/~ajw/LIGO_SURF02_4.pdf Very interesting presentation. Wish I had known more physics (topics) to understand some of the slides. I see they used active seismic isolation. What was used as an (absolute) frame of ref...
by SriKumar
31 Aug 2018 16:48
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

.And so far I have not read any link as I don't yet have time. Well, I see you had time to read my posts, make posts here (and on other threads too) :D so, let me offer a few lines from the link I posted. The note below is more informative than any of my posts so far. https://www.ligo.caltech.edu/p...
by SriKumar
31 Aug 2018 16:43
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

Note that it has been mentioned above as a 'separate issue', after implying earlier how two LIGOs somehow solve the problem of isolating vibrations in any one LIGO). . Note your original question. You were talking about differentiating earth quakes from ligo events, not systemic instumental error. ...
by SriKumar
31 Aug 2018 09:56
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

In other words, if the accuracy of one (or both) instruments is suspect, then we dont know what is being recorded. That's what I said right here : The effect of other vibrations masking a ligo event however is a separate issue. Essentially the signal to noise ratio has to be maximized through vario...
by SriKumar
30 Aug 2018 17:39
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

A second (or third) LIGO is not going to help if each LIGO is not isolated well from even faint vibrations. Each LIGO instrument has to be absolutely isolated from any vibration given that they are so super-sensitive. An earthquake or other seismic events are going to affect each LIGO differently ....
by SriKumar
30 Aug 2018 04:48
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

How are they able to isolate the LIGO from earth's vibrations (I know there's a 10 mile buffer zone or something like that) but at that level of precision, vibrations from earthquakes anywhere on earth and minor plate tectonic movements could affect its functioning? They have 2 ligos spread out geo...
by SriKumar
28 Aug 2018 04:30
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2423
Views: 57665

Re: Physics Discussion Thread

For LIGO, the precision is about BILLION (Yes, a billion) times more ! This is almost unbelievable. IOW i f you take the distance between earth and Alpha Century (4+ light years).. it measures/detects the variation of the order of thickness of a hair. = Just think about that. How are they able to i...
by SriKumar
13 Aug 2018 02:48
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Programme Discussion - Sept 2016

Good find Kurup. Some good information. Prasannasimha's one-line post mentioned Chellikere by name and I saw that it was in the middle of Karnataka and was wondering how the hell would ISRO launch from Sriharikota and land in Karnataka with all the population centres in between. And a 3 km drop did ...
by SriKumar
12 Aug 2018 00:28
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Programme Discussion - Sept 2016

^^^ Any idea if it will be landed on land (and not water like the previous RLV)? On a runway? Which one- the previous RLV needed a runway longer than any that had existed then. If landing on a runway, one assumes the other side of the craft in the picture will show landing gear. One assumes this one...
by SriKumar
11 Aug 2018 06:37
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Programme Discussion - Sept 2016

Super high-res here https://i.pinimg.com/originals/d8/f1/c8/d8f1c8f66d0f9cf0291e63663d2151aa.jpg I can see space for 6 strapons solid or liquid. Why you say there is no space? I'd say there is almost or literally no space for 4 strap-ons of the type shown in the figure (unless it is in a rotated co...
by SriKumar
09 Aug 2018 08:08
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3301
Views: 607323

Re: Indian Space Programme Discussion - Sept 2016

^^^Admiral, Sriharikota is an island (of sorts) sitting in A.P. and not T.N. .....unless this is a chankian move to further confuse our friends who are seriously searching for Bangalore, Kerala. :D Feel free to delete this post once the correction is in place.
by SriKumar
06 Aug 2018 06:03
Forum: Military Issues & History Forum
Topic: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
Replies: 3022
Views: 630741

Re: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018

Gyan, The requirements are a mix of musts and wants with sundry sources giving these out. The musts not yet accomplished are: Gun firing in air Air to air refueling Self jamming pod Wants are: Software defined radio This could end up with avionics impact. HAL has two lines 5+3 aircraft division. An...

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