27 Apr 07
1 edit
Originally posted by DeepThoughtIts not a read, its a three hour video series broadcast on NOVA but the whole thing is on that link. It should bring you up to date on the latest theories. One of the stunners talked about in that series is the possiblity of cross dimensional communications via gravitons. In string theory, it postulates a particle carrying the gravitaional force called the graviton, which moves at exactly C. One of the big puzzles about gravity is the question, why is it so dam weak? That is to say compared to Electomagnetic forces, like a refrigerator magnet can hold back the gravitational attraction of our whole planet, its trillions of times weaker than magnetic or electric fields. It only seems strong to us because we are basically neutral electrically. So the answer given by string theory (still unproven of course) is gravity is the force that is not trapped by dimensions. This means gravity spreads itself among all the dimensions and string theory postulates 10 or 11 dimensions.
[b]In Electro-weak theory the tachyonic vaccuum is unstable, which is why you get symmetry breaking. It's not clear to me if the unbroken theory contains "physical tachyons" or if it's a mathematical artifact. I've been out of the field for about a decade and have no idea what the current state of thinking about all this stuff is. Thanks for the link, I' eems to me that you'd need something like a faster than light particle to bring it about.[/b
So it is diluted by those dimensions and is weaker because of it. When you include all the extra dimensions, it adds up to something like the same strength as electromagnetic forces. But one interesting byplay of that is we may be able to detect the effect of gravity on other dimensions directly if and when we ever get LISA online and detecting gravitaional waves. Some of those proported waves could come from other dimensions, other universes. It is an incredible possibility but a lot of things have to fall into place before we start communicating with the 5th dimensional universe, like for instance, the proof that string and Mbrane theory is not just a nice invalid construct that looks pretty on paper.
Anyway its a good series, you should enjoy it.
01 May 07
2 edits
Originally posted by toyboy64That was a new one! ? Not...
And the answer is...................Milk its pasturised (past-your-eyes) b4 u know it.
Paddy and Mick were walking along and see a pot hole in the ground with no lid on. So Mick decides to investigate and went down...
Mick: "It's full of milk down there"
Paddy: "Is it pasturised???"
Mick: "No, it's not even past my knees!"
03 May 07
Originally posted by FabianFnassnicker🙂
That was a new one! ? Not...
Paddy and Mick were walking along and see a pot hole in the ground with no lid on. So Mick decides to investigate and went down...
Mick: "It's full of milk down there"
Paddy: "Is it pasturised???"
Mick: "No, it's not even past my knees!"
03 May 07
Originally posted by FabianFnasPaddy and Mick? What is this, a Widget special?
That was a new one! ? Not...
Paddy and Mick were walking along and see a pot hole in the ground with no lid on. So Mick decides to investigate and went down...
Mick: "It's full of milk down there"
Paddy: "Is it pasturised???"
Mick: "No, it's not even past my knees!"
11 May 07
Originally posted by Deman1968Here's a better one!
That has to be one of the worst jokes ever. It didn't even get a dismayed groan from me. Utter crap. Sorry
Two carpenters are working on a house. One carpenter keep checking the nails as he pulls them out of the box and throwing half of them away. The other carpenter says "hey, what are you doing throwing half the nails away!?" and the first carpenter replies "they're defective...they're pointing the wrong way!".
The second carpenter drops his hammer, walks over to the first carpenter and says "You idiot!! ... Those are for the other side of the house!!!"
😵
11 May 07
Originally posted by PBE62 handymen are at a job site.
Here's a better one!
Two carpenters are working on a house. One carpenter keep checking the nails as he pulls them out of the box and throwing half of them away. The other carpenter says "hey, what are you doing throwing half the nails away!?" and the first carpenter replies "they're defective...they're pointing the wrong way!".
The second carpenter dro ...[text shortened]... carpenter and says "You idiot!! ... Those are for the other side of the house!!!"
😵
The one handyman says to other, "hey, I went out with your sister last night...she's a carpenter's dream"
The other handyman says, "Why do you say that?"
The first one says, "Cause she's flat as a board and easy to nail!"
11 May 07
Originally posted by uzlessIrishman goes for a job as a tea-boy at a local building site. Half way through the interview, the site manager asks him 'by the way, can you drive a fork truck?'
2 handymen are at a job site.
The one handyman says to other, "hey, I went out with your sister last night...she's a carpenter's dream"
The other handyman says, "Why do you say that?"
The first one says, "Cause she's flat as a board and easy to nail!"
' Freakin 'el ' replies the irishman 'How bigs the freakin tea pot?'
Later on he applies for a job as a Handy Man.
During the interview he is asked 'Can do a bit of plumbing'
'Nope' replies the irishman
'What about a bit of decorating?'
'Rubbish at painting' he said
'Hmmm.. gardening?'
'Nooooo... always end up killing all the flowers'
'Any good with wood?'
Sorry...allergic to sawdust'
'Jeez..' the interview gasped 'What the flick is handy about you then?'
'Well i only live round the corner!'