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In Reply to: rough calculation... posted by chillysalsa on November 18, 2002 at 18:01:03:
""If they use electrodeposition to produce the stampers for the 'pits' on the die, then typically the dimensional accuracy for the smallest feature that can be produced is ~0.5 microns (0.5 x 10^-6 m)""I'm confused. I understand pits for cd stamping. Is that the term used for vinyl?
Cheers, John
Follow Ups:
The stamping process for CDs and vinyl are pretty similar. You have to make a mold with all the bumps & features first, and then stamp it on to the plastic. In the case of pressing vinyl, the bumps can have variable size to make the needle move, but CD pits are of definite size for the 1's and 0's. The molded plastic on a CD is later covered in aluminum to make the pits reflective to the laser.
""The stamping process for CDs and vinyl are pretty similar""Certainly sounds like it..
But isn't the vinyl started by cutting a master, where the wall features (highest frequency limit) are determined by the radius of curvature of the side of the cutting needle? Whereas the CD is photolithography? Or am I (carbon) dating myself?
Course, now that I've posted this, I'll have to google it. Shoulda googled first, but can't open 2 explorers.
If you just minimize (those 3 options, in the most upper right corner) your Explorer, then you can open another session by clicking on your icon in that small panel at the lower left, and swap between them. You only need to have some memory available (anything over 128 MB will do, with W98 SE)At least, it works fine for me: sometimes I go check some data, while writing something like this at AA...
Regards
Use the "New Window" command within IE. You can get there a few was:Click File, New, Window
or
Hold down your Ctrl key and tap your N key. Voila! New Window!
You might also use the Open command from the same menu, along with the previous commands. Whn I see someone add in a website name on the forum but it isn't listed as a hyperlink (in blue), I do the following:
Take the mouse and highlight the link
put your pinkie on the left Ctrl key
tap the C key (copy)
tap the N key (opens new window)
tap the V key (pastes the copied web address)
hit enter.After a little practice, it goes very fast. I think I can open pages faster than popups with thie method! hahaha.
Enjoy!
Thanks. I always wondered what that E down there was for, as I had explorer on the desktop.
It has some neat tabs on top of the navigator window...
I really would recommend IE 6, of your OS supports it. Netcsape, for some reason, just can't achieve the same speeds that IE can. I am not sure why, but it just is.For a low profile browser that doesn't support alot of internet stuff, you might also try Opera. Very, very fast, low overhead.
VE ARE DE GOVERNMENT Ve know what is best. You vill use ONLY government approved softvere!!!Can't do so at work, the IT people try to standardize, but home is a definite possibility.
Is it less vulnerable to hacking? I've '98 se on my home computer with norton antivirus, on a cable modem. Constant hack attack as IP never changes.
TTFN, John
a must with cable modems.
Son of a B. That's exactly what I need. Just can't believe how the prices have dropped.Had a hub, but was afraid to connect to the modem. Routers apparently provide a hard firewall.
I'll be able to connect all 4 of my systems at the same time. It's been a pain, burning 8cm CD's to transfer info. Had a zip, but hated it.
Thank You
;-D
http://eil.com/explore/guide/vinyl_making.asp
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