Large Hardon Collider

[Kaylia]

Arrays are also link by reference? I thought it was just arraylist. Well, you're probably right, I didn't remember.

Freaking index cause error 99% of the time. It's not so bad when you're careful, but I rarely get them right on the first try.

[Eliseos]

I think everything is passed by reference in Java, as opposed to some other languages like C where both pass by reference and pass by value can be done.

[Kaylia]

I think everything is passed by reference in Java, as opposed to some other languages like C where both pass by reference and pass by value can be done.

That's very possible. Last time I touched java was 7 years ago, so I forgot quite a bit.

[Max™]

Wtf, Javapedes in my mangina?

It's more likely than you think.

[Eliseos]

It would make sense, considering you can't touch anything memory related in Java like you can in C. I haven't touched C++ since May, and I have an assignment due on Monday in it. After coding for months straight in Java, I'm officially lost

[Woozie]

In java, primitive types pass by value and non-primitive types pass by reference.

It's kinda funny. My exam for computer science was Tuesday, and by Wednesday I had already forgotten most of the important stuff. The 0 -> k-1 and pass by reference mistakes I made are inexcusable considering how much our professor drilled those things into our head.

I do that in almost every non-math/non-physics class I take. As soon as the class ends I immediately forget everything.

[Kaylia]

I do that in almost every non-math/non-physics class I take. As soon as the class ends I immediately forget everything.

I think we can generalize this to every students when they take single classesfrom another department.


I had to build an electronic ampli for something in the lab, and couldnt remember how to do it, even if I've done it 6 months ago.

[Eliseos]

It's kinda funny. My exam for computer science was Tuesday, and by Wednesday I had already forgotten most of the important stuff. The 0 -> k-1 and pass by reference mistakes I made are inexcusable considering how much our professor drilled those things into our head.

I do that in almost every non-math/non-physics class I take. As soon as the class ends I immediately forget everything.

I'd imagine it also has to do with how much you enjoy the class too. I'd assume that with how many times you have taken that class, you didn't really enjoy it too much (but that's also an assumption which may be wrong, idk). That's how it is for me at least, once my theory of computation class is over, I never want to see another Turing-Machine ever again.

[Max™]

http://regmedia.co.uk/2009/12/09/twopointfourtev.jpg

http://www.theregister.co.uk/2009/12...ev_collisions/

Exclusive The Large Hadron Collider (LHC), already the most powerful particle-punisher ever built, smashed the collision record yesterday night as humanity's first 2.36 Tera-electron-volt collisions were recorded.
Scientists at the colossal subterranean ATLAS instrument cavern, located on the 27-km underground orbital motorway for hadrons that is the LHC, observed the new record-breaking event at 21:40 Swiss time last night.

[Tristam]

It's kinda funny. My exam for computer science was Tuesday, and by Wednesday I had already forgotten most of the important stuff. The 0 -> k-1 and pass by reference mistakes I made are inexcusable considering how much our professor drilled those things into our head.

I do that in almost every non-math/non-physics class I take. As soon as the class ends I immediately forget everything.

It gets worse as you get older, trust me. After six years in protein biophysics/biochemistry I moved into a cell/molecular bio lab and I didn't remember a damn thing about DNA and subcloning that I learned in molecular biology class/lab all those years ago. Of course everyone else is a fully trained molecular biologist and I don't know the 3' end from the 5' end of DNA.

[Kaylia]

http://regmedia.co.uk/2009/12/09/twopointfourtev.jpg

http://www.theregister.co.uk/2009/12...ev_collisions/

They need to hire an artist to pick a better color scheme. This picture is ugly.

[Kaylia]

FUUUUCK

Fuck teachers who can't fucking verify the homework they give you. I just wasted around 20 precious hours solving a problem that couldnt be solved.

[Max™]

They can sex it up later. Geeks are geeks, give us our blocky primary color schemes on black backgrounds, or give us death!

[Kaylia]

Anyone can repost the comic about media vs science, the "scientist cure cancer" one.


[edit]
Nvm, found it

[Indalecia]

Then post it, dammit

[Kryssan]

Article Link

Main components for Wendelstein 7-X all ready



Components for outer casing delivered / installation in progress

01.12.2009

Delivery of the last major components for the Wendelstein 7-X fusion device, now being built at the Greifswald branch of Max Planck Institute for Plasma Physics (IPP) marks completion of the industrial manufacture of the main elements. The last two sections of the outer casing are meanwhile at IPP in Greifswald. Assembly of the large-scale experiment is now in full swing.

http://www.ipp.mpg.de/ippcms/de/pres...es/13_09_a.jpg

All ten sections of the outer vessel for Wendelstein 7-X have been delivered (photo: IPP, Wolfgang Filser)

Once completed, Wendelstein 7-X will be the world’s largest fusion device of the stellarator type. Its objective is to investigate this concept’s suitability for a power plant. The aim of fusion research is to derive energy from fusion of atomic nuclei, this being the same process as occurs in the sun. In order to ignite the fusion fire, the fuel in a future power plant, a hydrogen plasma, has to be confined in magnetic fields and heated to temperatures of over 100 million degrees.

The last two of the ten sections altogether of the outer casing have now been delivered to Greifswald. With these steel sections, each weighing 14 tons, all major components are now ready at IPP. These comprise the 70 more than man-size superconducting magnet coils for producing the magnetic cage to confine the plasma, the huge support structure for keeping the coils in position, the twenty sections of the plasma vessel and its over 200 vessel ports, and finally the ten sections of the outer casing. When assembled, they will form a ring-shaped hose 16 metres in diameter. In its 4.4 metres wide interior this thermally insulating cold box will later enclose the whole coil ring, cooled to low temperature, inside which in turn is the plasma vessel containing the plasma, heated to 100 million degrees.

http://www.ipp.mpg.de/ippcms/de/pres...es/13_09_b.jpg

All five modules of the fusion experiment are now being assembled (photo: IPP, Beate Kemnitz)

Prior to final assembly, the individual sections of the stellarator device will first be pre-assembled as five almost structurally identical modules, which will then be joined together in the experiment hall to form a circle. Work is meanwhile proceeding simultaneously on all five modules: the first module is almost complete and is already in its final position on the device’s foundation in the experiment hall. The seam between the two casing halves of the outer vessel has yet to be closed; about 50 ports, which connect the plasma vessel with the outer vessel through the cold coil area, have still to be brazed on. At present, the piping for the low-temperature helium coolant on the second and third modules is being completed, as also are the electrical connections between the superconducting coils. The fourth module is just being assembled from the two halves; the magnet coils are being strung onto the two halves of the plasma vessel of the fifth module.

Once all modules are in place on the foundation, the five major components have to be joined to form a ring. Then come the in-vessel components. Mounted in parallel will be the systems for heating the plasma, the supply facilities for electric power and cooling, the device control system, and the numerous measuring instruments for diagnosing the behaviour of the plasma. If all goes according to plan, Wendelstein 7-X should be operational in about five years.

Quoted just in case work sites block it for some reason or another.

[Kaylia]

^
I wonder whats the purpose of the swiss cheese piece.

Then post it, dammit

Cant hurt to repost it.

Spoiler: show

http://zs1.smbc-comics.com/comics/20090830.gif

[Kaylia]

How do you integrate e^(-ax)* sin(bx) dx between 0 and infinity, ive been trying for 20minutes and keep getting nonsensical answer.


[edit]integration by part is going on forever and the first term is 0, , cant find a trigo substitution that works...


[edit2]

bah, I think i found how. Can send back the integral on the left side of the equation and get something like 2(aq)² int[udv] = uv

[Eliseos]

According to wolfram, that integral doesn't converge. Are you missing a - in the exponential term?

[Woozie]

If a is positive, there's no way that integral converges over 0 -> infinity.