What Do We Know About Our Universe?


#1

Even though I have a lot of things on my mind, I do wish

to know what science knows about the universe that we

live in. Reading books helps, but sometimes they confuse

and who has time to read enough to make sense of it all ?.

I accidentally ran into http://www.youtube.com/watch?v=7ImvlS8PLIo, a

Cosmologist. He explains stuff in layman's terms, what

would be hard to digest and take a lifetime of expertise to

decipher for the uninitiated.

What is the size, shape, density, mass and direction of

our universe ?. How do we know, what we do, about it ?.

What lies in the future for us ?, what special time are we

living in, right now, wrt the history of our universe, etc.

He is articulate, witty, funny and before you know it, an

hour has passed and he has gone from Einstein to Richard

Feynman. If you have taken Physics in High School, it

should be enough to make this an interesting outing.

.

.

.

Sheikh 'Expanding' Chilli


#2

Subscribed...


#3

Excellent. A great watch.

One thing I didn't like, he kept on bashing religion. Should've sticked to science.


#4

KAboom! I'm not here!

Its really simple to understand, usually they use term phrases,words which couldn't be understood by a person like me.


#5

[quote=", post:, topic:"]

Even though I have a lot of things on my mind, I do wish

to know what science knows about the universe that we

live in. Reading books helps, but sometimes they confuse

and who has time to read enough to make sense of it all ?.

I accidentally ran into http://www.youtube.com/watch?v=7ImvlS8PLIo, a

Cosmologist. He explains stuff in layman’s terms, what

would be hard to digest and take a lifetime of expertise to

decipher for the uninitiated.

What is the size, shape, density, mass and direction of

our universe ?. How do we know, what we do, about it ?.

What lies in the future for us ?, what special time are we

living in, right now, wrt the history of our universe, etc.

He is articulate, witty, funny and before you know it, an

hour has passed and he has gone from Einstein to Richard

Feynman. If you have taken Physics in High School, it

should be enough to make this an interesting outing.

.

.

.

Sheikh ‘Expanding’ Chilli

[/quote]

Over the past few years I have grown very fond of the origins/mechanics/history of ours universe. No doubt it gets very hard for a person with lesser or no knowledge of physics and its laws but sometimes its still uncomprehending for a person with a sufficient knowledge of physics and its laws.

I mean an atom sized point of pure energy banged into ever expanding covering millions and billions of light years distance and gave birth to gravity, black holes, matter, anti-matter, galaxies, solar systems, stars, planets, life and what not… Cannot get hold of it all though but it never seizes to amaze and fascinate me.

I have stumbled upon some of the very cool and beyond the ‘simple talk about the universe’ stuff, A hi-def visual journey if you will, if you wish to know more like I do. :)

Oh and did I mention that you will get to see more of Lawrence Krauss in a serious but more compassionate way…? :)


#6

Watch these documentaries if you wish to be humbled:

1. Journey To The Edge Of THe Universe (one of the best documentaries I've watched about universe)

2. Whose Afraid Of A Big Black Hole

3. What Happened Before The Big Bang

4. The Big Bang

5. Carl Sagan's documentary (don't remember the name, its very old, but very very interesting and thought provoking)


#7

ehti, I agree. It is ironic that the one group that does

not believe, will not shut up about religion. The main

reason seems to be the question of evolution versus

creationism. The Christian scholars have come out

and given a specific age (6500 years) of our universe.

This seems to rub the scientific minds the wrong way

and so there is a long-standing, ongoing debate about

it. There is a wonderful movie about this topic, starring

Spencer Tracy called Inherit The Wind. A classic

and entertaining debate, with a real twist at the end.

inherit_the_wind_1961.jpg

jDk, I recall you putting something in the 'Last Movie' section

some of these titles. May I ask if you got them all on torrents,

or some website, like youtube ?.

Faisal, I agree, the figures bandied about are hard to digest.

Talking about gazillions and infinity, multi-verse and greater

than the speed of light. Space warping due to gravity, etc.

But since the magnitude of time-scale for things changing is

in the order of billions of years, it is not an immediate worry. :)

But for those who will come after us, for them, to look out into

space and see ... nothing, will be terribly confusing. Like he

says, we will be "lonely, ignorant and... dominant" in our little

neck-of-the-woods.

Btw, does anyone else have opinions (wild guesses) what Dark

matter/energy might be ?. Jinnat, perhaps ?. Or something even

more special ?. It's scary that 70% of the mass of the universe

is something that no one yet knows anything about...

.

.

.

Sheikh 'Tilsmati' Chilli


#8

First of all I wanna say that I saw this lecture after posting here in this thread and I must admit that lecture isn't something nearly to be called as easily understandable. He was actually sugar coating all the hard stuff with his jokes/christian beliefs. One would have to be at doctorate level of physics specifically 3 or 4 subcategories like particle physics, astrology and what not to make sense of it all...

For those coming after us and seeing nothing could possibly be far fetched cause it took not more than 1000 years for us to realize for a process which is happening for billions of years which is of course is that our universe is expanding and the galaxies that we can see today are moving further away from each other and eventually will so far we won't be able to see them..... Now that will require another millions if not billions of years starting from NOW. We may not have that kind of time cause...

Chances are very bright for our galaxy, the milky-way, to have its very own black hole in the very middle of it. engulfing it, bit by bit. So its very possible that our galaxy would be long gone before other disappear OR a near by galaxy called Andromeda I think, is already on a collision course with our galaxy OR better yet, any asteroid from asteroid belt in our solar system could collide with our earth in 100 or 200 hundred years and wipe out life like it happened before on earth when we weren't here

Its all relative as Einstein would say....

About the dark matter, I think for now it just a term used by scientists to fill the blank temporarily to balance out the their supposed equations until they figure out what it actually is or even IF it is.

BTW I am still wondering is to why you said jinnat ? Is it because of the 'dark' in the dark matter? seen a dark jin ? :D

You should watch...

1. "How the universe works" which also features Lawrence Krauss among others. They tried to explain various phenomenon of our universe very neat and logically.

2. "Wonders of the solar system" an in depth BBC documentary about our solar system .... you will be amazed.

There are lots more but these are very easy and fascinating to start from.

But you have to dload them in hi-def 720p from torrents, of course. Do let me know if you have trouble finding them.


#9

The documentaries I listed above are available on all good HD torrent websites. HDME.eu or Bit-HDTV. If you have been following the experiments of the Large Hydron Collider (LHC), then you'd already know that they've already succeeded in creating a mini-big bang.

Link for Journey TO THe Edge of The universe

http://www.iptorrents.com/details.php?id=324328

Whose Afraid Of A Big Black Hole, it just boggles your mind as to what a black hole truly is. THis is a must watch documentary:

http://www.bbc.co.uk/programmes/b00nslc4#clips


#10

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