But for those to whom the reply sounds like a foreign language (on the order of one like Guugu Yimithirr), perhaps an example is in order.
From my understanding:
You're at an ATM machine. The front end is what you work with - the user interface that you are telling that you want to transfer $xx to another account.
The back end are the data bases that receive all that information
The middle ware is what makes sure the transaction goes through without error even though computers are crashing left and right and network connections are being chewed upon by evil squirrels.
Early days it was easy to see who had BEAS middleware on the web.
Fill your cart with junk, and hit the browser back button, not the screen back button.
If you lost everything in the cart, most likely it was IBM middleware.
If everything still worked no matter how much abuse you gave, BEAS software was working behind the scenes.
I think it's worth mentioning two related uses for high field magnets that impact out "everyday lives" quite a bit more than particle physics (yes I am a fan and realize the potential of particle physics but I am talking about immediate impact):
Magnetic Resonance Imaging (MRI) - those babies use lots of liquid Helium to keep the magnets 4K
Nuclear Magnetic Resonance Spectroscopy (NMR) - OK this is "almost immediate impact" on daily lives in that research into new drugs and organic chemicals would be tremendously affected and slowed without this analytical instrument.
Good news for the MRI application is that there are now Helium recyclers - instead of letting the liquid Helium slowly boil off into atmosphere, it is collected, compressed and reused. There are still losses, but instead of having to fill a half empty magnet around 4 times per year, you now have to fill about once a year.
However current recycling technology produces too much vibration for most NMR applications and currently isn't viable for this application.
Certainly - just look at the recent ads on TV which {cough} imply {cough} that the fellow who just bought his girlfriend/wife the diamond is now going to get something extra in terms of intimacy...
definition of catalyst was a substance that increases the yield or speed of a reaction without itself being consumed or changed by the process.
True, that would be the definition of an ideal catalyst.
The catalyst either provides a means to lower the energy required to make the reaction go by provided a surface with physical or chemical properties or it might actually be involved in the process - the material is in the reaction loop but at some step, the material comes back (like lending money - assuming everyone is honest and no one drops the money or gets robbed, you get the money back)
But $#!^ happens and stuff gets lost or reacts with something else that renders the material useless (catalyst is "poisoned"), even if in the reaction the material is always returned.
"...But it gets better. To attract current iPod users Microsoft is going to let you download for free any songs you've already bought from the iTunes Music Store. They'll actually scan iTunes for purchased tracks and then automatically add those to your account....[MS has to pay rights-holders...they'll lose money to win converts] "
Slashdot Mirror
In any event BEAS used to be the best, their competition did catch up somewhat.
Sort of like Windows vs Linux - Windows doesn't crash as much as it used to :-)
OK, sounds about right.
But for those to whom the reply sounds like a foreign language (on the order of one like Guugu Yimithirr), perhaps an example is in order.
From my understanding:
You're at an ATM machine. The front end is what you work with - the user interface that you are telling that you want to transfer $xx to another account.
The back end are the data bases that receive all that information
The middle ware is what makes sure the transaction goes through without error even though computers are crashing left and right and network connections are being chewed upon by evil squirrels.
Early days it was easy to see who had BEAS middleware on the web.
Fill your cart with junk, and hit the browser back button, not the screen back button.
If you lost everything in the cart, most likely it was IBM middleware.
If everything still worked no matter how much abuse you gave, BEAS software was working behind the scenes.
Wrong.
There are no practical high field magnets that run at 70K (Liquid Nitrogen temperature).
At the moment it's pricier so it's not used as much.
Wrong again. Liquid Nitrogen is around $100 for 200 liters.
Liquid Helium is around $700 for 100 liters.
Some facilities use exclusively nitrogen to cool their super magnets.
You're half right here (or half wrong)
All facilities with high field magnets use liquid Nitrogen as well as liquid Helium.
The liquid Nitrogen is used as a heat shield to slow boil off of the liquid Helium.
You know what they say about three strikes...
I think it's worth mentioning two related uses for high field magnets that impact out "everyday lives" quite a bit more than particle physics (yes I am a fan and realize the potential of particle physics but I am talking about immediate impact):
Magnetic Resonance Imaging (MRI) - those babies use lots of liquid Helium to keep the magnets 4K
Nuclear Magnetic Resonance Spectroscopy (NMR) - OK this is "almost immediate impact" on daily lives in that research into new drugs and organic chemicals would be tremendously affected and slowed without this analytical instrument.
Good news for the MRI application is that there are now Helium recyclers - instead of letting the liquid Helium slowly boil off into atmosphere, it is collected, compressed and reused. There are still losses, but instead of having to fill a half empty magnet around 4 times per year, you now have to fill about once a year.
However current recycling technology produces too much vibration for most NMR applications and currently isn't viable for this application.
Certainly - just look at the recent ads on TV which {cough} imply {cough} that the fellow who just bought his girlfriend/wife the diamond is now going to get something extra in terms of intimacy...
I guess that emphasizes the point that guys that get a girl using a big diamond as bait usually end up with a bird brain. :-)
... manufacture daisy wheel printers.
Now you tell me, after I used my bowie knife to dig my name and contact information into the screen of my laptop... :-)
True, that would be the definition of an ideal catalyst.
The catalyst either provides a means to lower the energy required to make the reaction go by provided a surface with physical or chemical properties or it might actually be involved in the process - the material is in the reaction loop but at some step, the material comes back (like lending money - assuming everyone is honest and no one drops the money or gets robbed, you get the money back)
But $#!^ happens and stuff gets lost or reacts with something else that renders the material useless (catalyst is "poisoned"), even if in the reaction the material is always returned.
Zero boiloff - not quite. They do have systems which recover the Helium and recondense it. You still need to refill the magnet, but a lot less often.
Freezing point of Nitrogen is 63K. boiling point is 77K. Very narrow range (assuming standard pressure)
...Also one of the places that the C64 was sold was "Toys R Us" which didn't exactly improve their image.
That technique is patented.
Hey those are the tools that I use to fix my computer - perfect when windows gives the blue screen of death
Dang!
and I was sooooo counting on collecting tattoos of my trips to show my grand kids
"And this is when I went to Kansas and I got this one - ooh I remember this that pretty stewdardess gave that one twice, after I pinched her....."
Yes, but that was the story, no? (Been a looong time since I read it)
Seriously - well stated.
When people cry wolf too many times, we tend to ignore the wolf when he does come.
Admittedly, Apple claims to have razor thin margins on iTunes, but then again so claims my car dealer.
Plus the music middlemen want iTunes to charge more than what they do now.
It'll be interesting, especially if MS names their player "Bob" :-)
http://www.youtube.com/watch?v=P1xJPQ2EJaI
nouns, adjectives, verbs, its all english to me...
"...But it gets better. To attract current iPod users Microsoft is going to let you download for free any songs you've already bought from the iTunes Music Store. They'll actually scan iTunes for purchased tracks and then automatically add those to your account....[MS has to pay rights-holders...they'll lose money to win converts] "
From: http://www.engadget.com/2006/07/06/microsoft-plann ing-wifi-enabled-portable-media-player-working-o/
It was folded.
Problem is the text that accompanies the icon. That makes it a threat and makes it personal.
Google: Measurement of freezing point depression of water in glass capillaries and the associated ice front shape
Also for real fun, look up:
Freezing of water in cement paste pores
http://ciks.cbt.nist.gov/garbocz/paper63/node3.h tml
Thats basic chemistry. }}}ouch{{{
Alcohols, which contain hydroxyl groups, OH (note lack of charge) are not the same animal.
Alcohols, glycols, etc which contain hydroxyl groups do not release hydroxyl ions - if anything they will act as weaks acids and release H+.
Thats what you get when a Physics professor starts playing with chemistry.