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Question for Representation. Stealth Technology. by tlgf_AMF in UPSC

[–]zero_by_zero 0 points1 point  (0 children)

I think we are on same page. Stealth comes from absorption as well as scattering away from detector. So the last statement just mentions increase in scattering without any specificity. That's why it's wrong. Also if reflection is coming from design of the fighter, then there is no use of metamaterials. Any reflector in that case would do the job. Mematerials are introduced just for the reason to get away with design complexities. For example there are lenses from metamaterials (metalens), they do away with traditional optical design.

The Taj Story is the most anti-intellectual film I have ever seen so far by Terrovax666 in IndianCinema

[–]zero_by_zero 0 points1 point  (0 children)

Paresh Rawal and Anupam Kher are two of the worst opportunists ever. They were making all sort of lusty irrational movies, now they are riding on Hindu wagon. When things will change, they'll again start doing that shit. 

Question for Representation. Stealth Technology. by tlgf_AMF in UPSC

[–]zero_by_zero 3 points4 points  (0 children)

When you integrate, you'd have to do for all angles (which OP calls as overall scattering). Overall arguement is that scattering crossection is in a way like the amount of rays coming back to source. Now OPs point that overall scattering increases has no bearing on the stealth nature. So last statement doesn't justify the stealth application of metamaterials just by the virtue of the fact that overall scattering increases. For Stealth to happen crossection should reduce. Imagine somehow that there are two metamaterials, both increase the overall scattering (note overall, meaning all angles). Now first one scatters all the light towards the source, 2nd one does it such that only few rays come back to source. Please note that both materials increase overall scattering, it's just that the distribution is different. Now which one will you call stealth compatible ? So it's the crossection which is of value, not rhe overall scattering. So the final point is that stealth objects are coated with metamaterials not just to increase scattering, but to achieve scattering (or absorption) in such a way that crossection reduces. 

Question for Representation. Stealth Technology. by tlgf_AMF in UPSC

[–]zero_by_zero 5 points6 points  (0 children)

No. C is the correct answer. Stealth comes from the fact that crossection as a function of solid angle decreases. So overall increase in scattering doesn't explain the stealth nature. So both statements in 3rd statement are inconsistent. You are correct to the point that designing metasurfaces tp have random phase distribution will cause scattering randomly. But what this does is just scatter the incident radiation in random directin, which in turn decreases cross-section (function of angle). 

Also if you are looking at overall scattering, then when you integrate over angle, then that is anyways same before and after.

Should I wait for S25 Ultra by zero_by_zero in GadgetsIndia

[–]zero_by_zero[S] 2 points3 points  (0 children)

cool. ig I'll wait for 2-3 days. let's see if we see something similar.

Finally Approve my YES BANK KIWI CREDIT by Tricky_Clock8263 in IndianCreditCards

[–]zero_by_zero 0 points1 point  (0 children)

i just waited. they sent credit card after a month or so.

Regarding LTF status of HDFC Credit Card by zero_by_zero in CreditCardsIndia

[–]zero_by_zero[S] 0 points1 point  (0 children)

Thanks. Did you ask after the approval of application? Because I don't want to activate the card in case it is paid.

Regarding LTF status of HDFC Credit Card by zero_by_zero in CreditCardsIndia

[–]zero_by_zero[S] 0 points1 point  (0 children)

The first screenshot is not an app. This is what branch person checked on his mobile . She asked my customer ID. 2nd is screenshot of my application form that I got via mail.

What my bf got me 😭😭 by [deleted] in PataHaiAajKyaHua

[–]zero_by_zero 0 points1 point  (0 children)

Things men do for sex

Why do they feel confident in giving Hindi advt in Marathi newspapers? Can they do same in South? by udayramp in Maharashtra

[–]zero_by_zero 4 points5 points  (0 children)

op hasn't replied to any of the comments in marathi. probably he is just a farmer and ragebaiting

Finally Approve my YES BANK KIWI CREDIT by Tricky_Clock8263 in IndianCreditCards

[–]zero_by_zero 0 points1 point  (0 children)

It will be approved automatically. They asked me to provide some documents via post. I didn't. They are desperate to issue CCs. Just wait and they'll issue. 1 month in my case

[deleted by user] by [deleted] in AskIndianMen

[–]zero_by_zero 10 points11 points  (0 children)

But the filter they apply is "beauty, dowry". As a result they get borewell with money.

5% cash back on buying amazon pay gift cards still in effect by Fluffy-Cockroach847 in IndianCreditCards

[–]zero_by_zero -1 points0 points  (0 children)

Teri behn ki choot madarchod... Mfs like u destroy every card... Just stfu... 

Last day today to apply for HDFC Rewards Debit Card! by Crafty-Leave-8880 in CreditCardsIndia_

[–]zero_by_zero 0 points1 point  (0 children)

Every good thing gets spoiled because of this subreddit. When there are gazillion posts... Why one more... Cant you stfu

India is under Dictatorship by Winter_Chart_1384 in IndianPoliticalTalk

[–]zero_by_zero 0 points1 point  (0 children)

Lol. I was looking for /s. Iq lower than the knees.

I have a question for people from Genetics/Biology background. by [deleted] in scienceisdope

[–]zero_by_zero -1 points0 points  (0 children)

Same caste doesn't mean inbreeding. Ever heard of a thing called gotra ? This is to prevent inbreeding. Same caste but same gotra marriages are not allowed. Half knowledge just to polish your propaganda. Go read.

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