#garfield Logs

Apr 18 2015

00:06 katsmeow-afk Steve Grand is a self-taught scientist who has deliberately eschewed large public grants and laboratory affiliation so as to give himself the freedom required to put his revolutionary theories on artificial intelligence to the test. The result is Lucy, one of the most advanced research robots in ...
00:06 katsmeow-afk [Search domain books.google.co.za] books.google.co.za/books/about/Growing_Up_with_Lucy.html?id=...
00:06 katsmeow-afk https://duckduckgo.com/?q=Growing+Up+with+Lucy+is+Steve+Grand&ia=products
00:07 tsmeow-afk has not searched for "growing up with "$+[all_human_first_na
00:11 katsmeow-afk TIP36 are now under $1 each, and free s&h
00:11 katsmeow-afk 25amp 1kv bridge blocks are under a $1 each too
00:11 katsmeow-afk conincidence?
00:12 katsmeow-afk 19v 4.7 amp laptop psu are under $8 ,,, becha thought i was going to say $1
00:24 katsmeow-afk Tom, i want this on any mill or drill press, don't i? http://www.ebay.com/itm/35mm-ID-x-52mm-OD-x-12mm-Thickness-51107-Axial-Ball-Thrust-Bearing-/251654493041
00:25 katsmeow-afk https://stevegrand.wordpress.com/106-2/introduction-to-growing-up-with-lucy/
00:28 katsmeow-afk August 15, 2012 at 11:25 am
00:28 katsmeow-afk Haha! Some of us have already evolved the chairbound, tiny wasted bodies part! I have a reminder on my iPhone to make me get up once an hour if I don�t move, and yesterday I looked down to see nine uncancelled reminders. I figured it was probably time for lunch�
00:55 katsmeow-afk http://www.generation5.org/content/2000/grand130900.asp
01:00 katsmeow-afk http://www.cyberlife-research.com/ is down
01:00 katsmeow-afk Cyberlife Research is a multinational conglomerate consisting of two ENTIRE people - Ann and Steve Grand. Ann does all the difficult form-filling and stuff, while Steve sits on his butt and cogitates about the meaning of life,
01:00 katsmeow-afk how the brain works and that sort of thing, with the aim of creating new kinds of technology with genuine minds of their own.
01:00 katsmeow-afk In the past few years research has focused on developing some far more ambitious ideas about how the brain works, hindered by a baby robot orangutan called Lucy.
01:01 katsmeow-afk Telephone
01:01 katsmeow-afk Please use email; that way you won't disturb our creative juices
01:01 katsmeow-afk FAX
01:01 katsmeow-afk You what? I expect you'll want our Telex number next, or the name of our carrier pigeon. Use email, for heaven's sake - this is the 21st century
01:02 katsmeow-afk Key Benefits of Project X
01:02 katsmeow-afk World peace
01:02 katsmeow-afk Everlasting life
01:02 katsmeow-afk Hopefully some amusement and things to make you think
01:02 katsmeow-afk Firefox can't find the server at fp.cyberlifersrch.plus.com.
01:03 katsmeow-afk Home
01:03 katsmeow-afk
01:03 katsmeow-afk 7 December
01:03 katsmeow-afk This is just to publicly record my thanks to my pen-friend Norm Nason, who I've never even met but can say with conviction is one of the nicest people in the world. A few days ago my computer died and I had to replace almost all of it. Except, that is, for its ancient hard drive, since I was trying to keep the cost to a minimum. This morning a brand spanking new 250GB drive arrived on my doorstep without explanation. It turned out to be a gif
01:03 katsmeow-afk grr
01:04 katsmeow-afk Unfortunately a few potential projects and funding applications fell apart, and that's why I have to shelve my research. I have some tales to tell on those subjects but there's no point griping about it. The UK is a really shitty place in which to try doing anything genuinely innovative, and collaboration is a greatly overrated concept, that's all I'm saying.
01:07 katsmeow-afk http://web.archive.org/web/20060304215348/http://fp.cyberlifersrch.plus.com/articles/ieee_9.htm
01:51 tsmeow-afk puts Hitchin a Ride on
03:59 katsmeow-afk .
04:07 katsmeow-afk A 2009 study actually measured the total mass of spiders in sample areas in Brazil. They found one-digit numbers of milligrams of spider[6] per square meter of forest floor.
04:09 katsmeow-afk if you were standing next to the Black River Wastewater Treatment Plant in 2009, the pull of all the spiders inside would still be only 1/50,000,000th that of the Sun.
05:08 katsmeow-afk .
08:08 katsmeow-afk .
08:18 katsmeow-afk greee, plastic sheet is cheaper from Denmark than what is made in the usa, but shipping is too high
08:18 katsmeow-afk greeee = gerrrrr
08:19 katsmeow-afk ditto from theUK
08:22 katsmeow-afk hmm, china doesn't seem to want to sell polycarbonate, lexan, or plexi, at least in 5mm , but they do have listings for abd styrene
08:22 katsmeow-afk abs
08:23 katsmeow-afk still not free s&h, but from china it's $4 instead of $14 from Europe
08:27 tsmeow-afk s
08:28 katsmeow-afk i cannot believe plastic will cost more to get to me, onto a desk in front of me, than aluminum
08:30 katsmeow-afk 1 pcs ABS Styrene Plastic Flat Sheet Plate 5mm x 200mm x 250mm <<== $16 from china
08:31 katsmeow-afk .187" x 12" x 12" White High Impact Styrene Sheet <<== min order is 8 pcs, but it's $5.70/sheet @ qty 8
08:36 katsmeow-afk $18 ... $25 s&h from California
09:40 katsmeow-afk .
17:26 katsmeow-afk .
19:48 katsmeow-afk .
19:59 Tom_itx .
20:17 tsmeow-afk wonders if Tom sees the storms co
20:18 Tom_itx started raining like 5 min ago
20:18 tsmeow-afk
20:32 tsmeow-afk needs a metal box 4
20:32 katsmeow-afk or 4.5 x 5 x 9
20:32 katsmeow-afk or x 9.5
20:32 katsmeow-afk maybe even x 10
20:33 tsmeow-afk is not so deman
20:33 katsmeow-afk can you share a clue about box locations with me?
21:36 Tom_itx box locations?
21:59 katsmeow-afk locations of the afore-mentioned and described boxes
22:17 Tom_itx sry.. so tired didn't even realize you said metal...
22:18 Tom_itx service pannel box maybe
22:18 katsmeow-afk i are equally tired, i think it's the constant rain
22:18 Tom_itx not gonna be thick enough
22:18 katsmeow-afk must be light duty
22:18 Tom_itx no, been up too much last few days
22:18 katsmeow-afk i will put boxes inside it, and then put it into another box
22:20 Tom_itx gonna go try and sleep a bit
22:20 katsmeow-afk me too, in a few
22:54 rue_shop3 kat, you up?
22:54 katsmeow-afk partly
22:54 rue_shop3 brain excersize
22:54 katsmeow-afk good luck
22:54 rue_shop3 I want a filter thats does -54db at 6.25khz
22:54 rue_shop3 two stages, so each does about 7.5db
22:54 rue_shop3 (-)
22:55 rue_shop3 from what I can tell, -7.5db at 6.25khz, is about -3db at about 31hz
22:55 rue_shop3 (rc filter)
22:55 katsmeow-afk use a bootstrapped twin-t
22:55 katsmeow-afk it's a RC filter too
22:55 rue_shop3 -3db/decade or is that active?
22:56 katsmeow-afk there's also 1/2 twin-t's
22:56 katsmeow-afk 3db is passive
22:56 rue_shop3 yea, I was gonna use two passive stages
22:56 katsmeow-afk anyting over 3db you need gain
22:56 rue_shop3 3db/decade
22:57 rue_shop3 but I think if I design it -3db at 31hz, I'll be -7.5db by the time its at 6.25khz
22:58 katsmeow-afk your figure of 6,250 hz is pretty accurate and tight, i again suggest a twin t, you can modify it's slopes some, and it will still be sharp at 6250 hz
22:59 rue_shop3 I'v never made one...
22:59 katsmeow-afk imagine the fun of a new learning experience!
22:59 rue_shop3 oh
23:00 rue_shop3 it.. just uses an amp to invert the signal on the ground of the first cap?
23:00 katsmeow-afk 3 R, 3 C, and 2 or 3 opamps is all you need
23:00 rue_shop3 http://i.stack.imgur.com/qo850.png
23:00 katsmeow-afk and one of the R
23:01 katsmeow-afk that's sorta a 1/2 twin-t
23:01 rue_shop3 http://i.stack.imgur.com/THGPu.png
23:01 katsmeow-afk you can also configure as a notch bandpass
23:02 rue_shop3 its pwm, so I expect harmonic hell
23:03 katsmeow-afk wikipedia screwed up this pae but here's a passive twin-t : weel, crap
23:04 katsmeow-afk had to kill FF, and lost the copy/paste when i did
23:04 rue_shop3 browsers aren't doing so good latley
23:04 rue_shop3 I can only play youtube on one machine, and I cant play them direct from youtube
23:05 katsmeow-afk same here
23:06 katsmeow-afk it's google's doing, to push yu into Chrome, which is loaded with "browsing optomisers" (aka spyware)
23:06 katsmeow-afk so i deleted all google and Chome anything from the puters
23:07 katsmeow-afk there's download helpers for youtube, yo can play them at your lesure on vlc, usually
23:07 katsmeow-afk i still have issues with video gifs on imgur
23:08 rue_shop3 yup
23:09 rue_shop3 and chrome goes obsolete in just a few months
23:09 katsmeow-afk anyhoo, google all over for twin-t
23:09 katsmeow-afk obsolete? what will they replace it with?
23:09 katsmeow-afk or, ddg.com
23:09 rue_shop3 thats the twin-t advantage?
23:10 rue_shop3 it looks like the phase angle of a rc would be -90 for sure
23:10 katsmeow-afk very sharp cutoff, which is tuneable, unity gain on all other freqs,
23:11 rue_shop3 its for fitlering pwm
23:11 rue_shop3 I just want to make sure the 5V ripple is down to .01V or so
23:11 katsmeow-afk if yo are looking for a shelving type of filter, for 6250 and everyting down from that, ddg for shelving filter
23:11 katsmeow-afk umm
23:12 rue_shop3 the exact cutoff isn't critical
23:12 rue_shop3 from what I see, 5V -> .01V is about -54db
23:12 katsmeow-afk have you read the psu hmm rejection specs for a 7805?
23:13 rue_shop3 er?
23:13 rue_shop3 how would that work?
23:13 katsmeow-afk seems easier to me, if one isn't enough, use a 12v psu, a 7808 and then the 7805 should get you over 100db of rejection
23:14 katsmeow-afk or rather,, 12v, 7809, 7805
23:14 katsmeow-afk or rather,, 14v, 7809, 7805
23:14 katsmeow-afk you get the idea
23:14 katsmeow-afk passive twin-t filter : https://en.wikipedia.org/wiki/RC_oscillator#/media/File:RC_oscillator.svg
23:14 rue_shop3 so, from the microcontroller, I'm outputting 0-100% pwm at 5V, I'm filtering it, looping it back thru the adc AND outputting it to my analog circuit
23:15 rue_shop3 is it 180 phase angle?
23:16 katsmeow-afk looking for data yo can read while i pas out
23:16 rue_shop3 :) thanks
23:17 katsmeow-afk http://sound.westhost.com/articles/active-filters.htm
23:17 katsmeow-afk http://www.diyaudio.com/forums/equipment-tools/188703-build-active-twin-t-notch-filter-distortion-analysis-7.html
23:18 katsmeow-afk http://ti.com/lit/an/snoa680/snoa680.pdf
23:23 katsmeow-afk charts on 7800 datasheet say ripple rejection is ~60db from dc to 1khz
23:37 katsmeow-afk my ancient Yamaha sound board has RC filters on all pwr on each channel board, it's a 100 ohm resistor and a 100uf cap: at 20mv of dc power noise, the 100 ohm R allowed only 0.2ma of noise current thru to the cap, and 100uf snuffs 0.2 of anyting really solidly
23:37 katsmeow-afk Tektronix does the same thing on some cards