Listening to the Cries of Baby Stars
Can Helium also fuse into Helium and form heavier element?

Listening to the Cries of Baby Stars

What would be the radius of event horizon of an average size black hole?

Listening to the Cries of Baby Stars
If stars burn hydrogen into helium then shouldn`t there be a lot of helium too in the universe?

Listening to the Cries of Baby Stars

Why doesn`t our moon spin or to be technically correct why is its period of orbit around earth exactly same as period of its rotation around its axis?

Listening to the Cries of Baby Stars
I had heard that some experiment was conducted in a very deep abandoned mine in UK to detect dark matter. Whatever happened to that experiment?

And what also fascinates me is that central to the theory of relativity is the constant speed character of light to all observers whether stationary or moving. What I am interested to know is why this assumption was made in the beginning i.e. what made scientists to think that speed of the light should be constant?

Listening to the Cries of Baby Stars Re: # 43

``There is a theory about `vacuum fluctuation`, which means that in space, particles and anti-particles keep on forming and annihilatiog in t=0, thus without disturbing the overall law of conservation of energy. This theory is, however, highly speculative. If the same occurs at the event horizon (the surface of the black hole), it is quite possible that the anti-particle may fall into the black hole, and the particle may escape. To an external observer, there might be a continuous stream of particles from the black hole...``

But this would mean black holes are directly observable whereas presence of black hole is speculated on the basis of its characteristic signature, much like dark matter . Another point.... what makes particle rather than antiparticle to jump out of event horizan?

Listening to the Cries of Baby Stars
My knowledge of Astrophysics is pretty limited, more or less acquired from Stephen Hawking’s book. One thing I was not able to understand and would be grateful for some explanation here (no heavy duty tech jargon please)

Black holes don’t let anything not even light escape past event horizon. How do then they lose matter and decay?

Listening to the Cries of Baby Stars
Re: # 32

Smugness of some people is amazing. I thought the argument was over but no, these enlightened ones have to have the last word. The very first interact on this board dragged `Allah` in to discussion, I didnt!

Listening to the Cries of Baby Stars Re: # 25

I suppose converse is equally true.

Listening to the Cries of Baby Stars Re: # 16
I know entropy is always increasing, it is quite obvious if unverse itself is expanding!
And when I say matter is uniformly distributed I don`t mean every cubic inch of universe has uniform density. What I mean is that on a reasonable large unit of space, matter is evenly distributed.

Listening to the Cries of Baby Stars Re: # 5
````There`s no God`` means the universe (matter, energy, space and time) is there since eternity.``

Why? Doesn`t that bring in concept of beginning of time?

``Well we all know this is not possible, otherwise all the matter and energy would have distributed equally throughout space with no energy and matter gradient left.``

How do you know 15 billion years is enough time? And what is beginnig of time? Does a loop has a begining or an end? My understanding is that cosmic matter is more or less uniformly distributed in space which is still expanding.

Listening to the Cries of Baby Stars Re: # 3

Why should I?
As the faithfuls say, ``It is matter of faith``, isn`t it?

Listening to the Cries of Baby Stars Re: # 1

You have no idea what you are talking about. Trillion years are equal to a thousand billion years and Universe is merely 15 billion years old. There is no God, there never was and there never will be. The Universe will collapse in a big crunch back to Singularity from where it once emerged. Matter is deceptive, merely sum total of spinning energy fields.

The Myth of Growth:Pakistan\'s Lost Opportunity

I don`t think you understand economics. Pakistan is doing extremely well.

Saving the Female Fetus Re: # 102

No they will not starve their daughters but what about torture an abuse?

read this: ( http://www.indianexpress.com/res/web/pIe/full_story.php?content_id=83803 )

MUMBAI, DECEMBER 11: Inspector Shamsher Khan Pathan cannot adopt little Deepika Ratan—the nine-year-old girl he rescued recently from a life of abuse and abandonment—all because he is a Muslim and she’s a Hindu.

The Hindu Adoptions and Maintenance Act (HAMA) of 1956 says that. So does Muslim Personal Law.



Pathan’s lawyers have advised against even an attempt at adoption. Instead, they have suggested foster-parenting.

Deepika is too young to understand any of these, but is clear that she doesn’t want to live with her parents or grandparents. ‘‘I want to stay with Pathan uncle,’’ she said when this reporter met her at Vatsalya Trust—a home for the homeless.

Until exactly a month ago, Deepika’s life was a nightmare. Her parents didn’t want her—she was their second daughter. They had left her with her grandparents when she was just 40 days old. She returned to Mumbai only last year, when the old couple said they could no longer take care of her.

In their Mumbai home, her parents abused her, locked her up in a bathroom, burnt her hands with cigarette butts and hot pans, till finally, one day, the neighbours called the police.

Saving the Female Fetus
Re: # 31

You are right about sting operation ending just before actual occurrence of crime. But in India abortion is legal therefore act of abortion is not crime,(``Some of the blood that stained the hands of those medical killers also spills over to that camera and colors the hands that held it! ``)

Determination of pre-natal sex is crime.