Electric guitar technique question

[glasfen]

I've been playing guitar for many years now but there is one technique I can't seem to figure out. It's that "screaming guitar slide" that is employed heavily by Boston, particularly in their debut album.

Hear it here (around 0:43):

http://www.youtube.com/watch?v=IcsVPis1iNs

Is it done with a pick? Any pointers?

...when are those hairstyles coming back?

[Nekofrog]

Slide your pick up or down the a wound string(s).

Really easy.

[Fishy]

Thats a pick slide. You just run the pick down the bottom 2/3 strings to make a scratching sound.

Cue random youtube idiot with a demonstration:

http://www.youtube.com/watch?v=wFLgdKMBsCc&feature=related

EDIT: hooo sniped on this highly technical answer by neko.

[glasfen]

Awesome. If I had known what it was called I might have been able to figure it out...

Thanks guys!

[audio fidelity]

Cue random youtube idiot with a demonstration:

ouch - he can't even tell how out of tune he is

[Skummel Maske]

That's okay though. I checked his other clips, and his guitar solos blow my mind.

[audio fidelity]

aw man your right - my mind wants to explode

http://www.youtube.com/watch?v=3X35iHNYVf4

[OceansAndrew]

*asplodezzzz*

[DusK]

This technique is employed heavily in hardcore punk rock, in case you wanted to hear it in a louder setting.

[Sixto]

Stock up on picks! You'll ruin them so fast by doing those slides. I usually go through 5 or 6 when I record ONE song.