Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

LIBS confirms the presence of sulphur on the lunar surface

isro.gov.in

Post reply on HN
Print view View original

41–50 of 90 posts

Re: LIBS confirms the presence of sulphur on the lunar surface

#41

Post by haltingproblem »

innagadadavida wrote: post #21
haltingproblem wrote: post #18

Earlier quoted context omitted.

So what you are saying is that the numerous deficiencies are *intrinsic* to India (and Indians) by extension and will never go away? Is is about their DNA (nature) or their culture (nurture)? What is about "a vast, diverse population into something they are not" ? Are you saying India can not be a middle-ish income country like China/Thailand/Malyasia etc. I would like to believe that wise choices by the electorate a…

I'd like to look at some data on people movements before making up hypotheses and theories. What we have seen is that more people are moving out of India than into the country (other than some poor migrants from places like Bangladesh). What do you think that this data is telling - not about the people (it is easy to blame them for not being patriotic etc). but about the judgements these people have made of the situa…

People migrate. Especially when they are better opportunities. The founder of FB "migrated" to Singapore from the US. So did the Dyson guy from the UK and he then moved back.

Using net migration as a statistic for the health of a country is no more (or less) valid than the TFR or longevity or anything else equally plausible.

Q: Say that Sundar Pichai or Vinod Khosla had not left India? Would their impact on India larger or smaller?

I would say India is better off that they left, maybe you differ?

Re: LIBS confirms the presence of sulphur on the lunar surface

#42

Post by zardo »

Jeff_Brown wrote: post #35
0xDEF wrote: post #24

It also found a a remarkable temperature gradient on the South Pole's surface. Even if the surface temperature is 60+ degree Celsius just 8 cm below the surface the temperature is -10 degree Celsius. (South Pole) Moon dust is a really good insulator.

That (60 C) is far hotter than I would have guessed. I realize the moon doesn't have an atmosphere, but at the south pole the light should be tangent to the surface. Is the probe not actually at -90 degrees latitude, and was this measurement taken at noon?

It's 60 C colder than noon temps at the equator

Re: LIBS confirms the presence of sulphur on the lunar surface

#43

Post by dang »

dxbydt wrote: post #4

There's a flurry on new info. In particular the variance of surface temperature at the lunar south pole, from 60 degree Celsius on the lunar surface, to -10 degree Celsius if you probe just 8cm below the surface https://nitter.net/pic/orig/media%2FF4hsyEQaEAAB-AS.png A whole seventy degree temperature difference over such a small height delta. There were a bunch of scientists trying to explain this on Indian news TV…

Please edit provocations and swipes out of your comments here. The provocation "shithole" led to a bunch of flamewar that I'm certain you didn't intend, and yet your comment is responsible for starting it. (I've detached those subthreads as offtopic and collapsed them, but they can be found at the bottom of the page.)

The site guidelines specifically include rules to prevent this kind of thing, so it would be good to review them: https://news.ycombinator.com/newsguidelines.html.

Your comment was otherwise fine, so I'm going to downweight this reply to the bottom of the subthread.

(Oh, but also please don't use link shorteners on HN.)

Re: LIBS confirms the presence of sulphur on the lunar surface

#44

Post by dang »

morbidious wrote: post #27

[flagged]

"Please don't pick the most provocative thing in an article or post to complain about in the thread. Find something interesting to respond to instead."

"Eschew flamebait. Avoid generic tangents."

https://news.ycombinator.com/newsguidelines.html

We detached this subthread from https://news.ycombinator.com/item?id=37338000.

Re: LIBS confirms the presence of sulphur on the lunar surface

#46

Post by morbidious »

dang wrote: post #44
morbidious wrote: post #27

[flagged]

" Please don't pick the most provocative thing in an article or post to complain about in the thread. Find something interesting to respond to instead. " " Eschew flamebait. Avoid generic tangents. " https://news.ycombinator.com/newsguidelines.html We detached this subthread from https://news.ycombinator.com/item?id=37338000 .

Happy to see the proactive moderation.

Update: Didn't see your comment on the original post.

Re: LIBS confirms the presence of sulphur on the lunar surface

#47

Post by bguebert »

Jeff_Brown wrote: post #35
0xDEF wrote: post #24

It also found a a remarkable temperature gradient on the South Pole's surface. Even if the surface temperature is 60+ degree Celsius just 8 cm below the surface the temperature is -10 degree Celsius. (South Pole) Moon dust is a really good insulator.

That (60 C) is far hotter than I would have guessed. I realize the moon doesn't have an atmosphere, but at the south pole the light should be tangent to the surface. Is the probe not actually at -90 degrees latitude, and was this measurement taken at noon?

The moon has a tilt so the amount of light at the poles can vary over time.

Re: LIBS confirms the presence of sulphur on the lunar surface

#48

Post by fooker »

Ajedi32 wrote: post #33
fooker wrote: post #32

Earlier quoted context omitted.

Why not? Plenty of 60C water on the earth's surface.

The moon doesn't have an atmosphere. https://en.wikipedia.org/wiki/Phase_diagram#/media/File:Phas...

Ah nice, missed that thanks.

Re: LIBS confirms the presence of sulphur on the lunar surface

#49

Post by morbidious »

harrymit907 wrote: post #20
haltingproblem wrote: post #12

[flagged]

Just to be clear, Modi and his shithole party had nothing to do with the success of Chandrayan. 100% credit goes to the scientists and engineers.

Not taking anything away from the scientists and engineers, it is their achievement completely.

But is this the way to talk about the party that has the support of 80% of Indians? Hate to see such uncultured speech.

@dang please flag parent comment.

Re: LIBS confirms the presence of sulphur on the lunar surface

#50

Post by haltingproblem »

dang wrote: post #37
haltingproblem wrote: post #12

[flagged]

We detached this flamewar subthread from https://news.ycombinator.com/item?id=37338000 . Please don't take HN threads into political, nationalistic, or ideological flamewar, or any other flamewar. We ban accounts that keep doing this, and we've had to ask you more than once before, so please stop. https://news.ycombinator.com/newsguidelines.html

I thought we were having a perfectly reasonable discussion on India's development trajectory and misses, if you read down-thread.

But this is your sub so I will stay away from comments on this sub.

Post reply on HN