Search found 112 matches

by peter-f
Sun May 01, 2005 10:27 am
Forum: General Discussion
Topic: Solar panel sleight of hand
Replies: 67
Views: 13914

Re: Solar panel sleight of hand

thanks terri- As you may note, I made no personal reference to anyone here- so you can stop taking things I said personally. The 'you' I used was intended for each individual reading this thread... as an invitation to act (!) on your own personal level.<p>Your reference to nuclear.. especially Fusio...
by peter-f
Sat Apr 30, 2005 11:54 am
Forum: General Discussion
Topic: A practical solar panel installation cost analysis
Replies: 13
Views: 3300

Re: A practical solar panel installation cost analysis

The largest rooftop installation I've seen is in NYC... Varick St., If I Recall.<p>Roofs in NYC are genrally flat asphalt.. this is, too. The cells were mounted on steel supports angled to the sun. I assume (from my vantage point) that the whole support frame was elevated to allow roof maintenance.....
by peter-f
Sat Apr 30, 2005 9:13 am
Forum: General Discussion
Topic: Presence Detector
Replies: 13
Views: 2945

Re: Presence Detector

Stephen has a good direction for you...<p>Should be easy to look up a circuit.<p>Be careful how you use this... In the '70's, there was a fire in a NYC skyscraper. (1 New York Plaza). The elevator call buttons were activated by (either) capacitance change or heat. When the NYFD responded, the elevat...
by peter-f
Sat Apr 30, 2005 9:04 am
Forum: General Discussion
Topic: A practical solar panel installation cost analysis
Replies: 13
Views: 3300

Re: A practical solar panel installation cost analysis

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by ian: In addition you need a roof exactly halfway between the season azimuths, and exactly halfway between sunup and sunset, for maximum performance. <p><hr></blockquote><p> But... WHAT FOR??? Be. a...
by peter-f
Sat Apr 30, 2005 8:58 am
Forum: General Discussion
Topic: Solar cells down to details...
Replies: 141
Views: 63327

Re: Solar cells down to details...

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by stephen: Sorry, but I doubt if that carbruetor was cheaper than fuel injection. It was probably about the same. The dealer's price for a replacement was over $900.<p>It was also about as efficient....
by peter-f
Sat Apr 30, 2005 4:50 am
Forum: General Discussion
Topic: Solar cells down to details...
Replies: 141
Views: 63327

Re: Solar cells down to details...

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr> Incidently, my 1984 pickup did have a computer, but it was not fuel injected. When you consider all of the control valves and hoses that were added to the engine to meet the smog requirements, it is entire possible th...
by peter-f
Fri Apr 29, 2005 3:17 pm
Forum: General Discussion
Topic: Battery Powered Lawn Mowers - Don't Curse - I Know They
Replies: 10
Views: 2625

Re: Battery Powered Lawn Mowers - Don't Curse - I Know They

Some cool ideas... some not. But it call to mind my (late) great-uncle. A great handiman, machinist and tinkerer... what farmer isn't?<p>In his eulogy, his nephew recalled, "Then there was the time back in the 60's, I drove up to his house. And there he was, sitting in his living room, mowing the la...
by peter-f
Fri Apr 29, 2005 3:00 pm
Forum: General Discussion
Topic: Ammonium Persulphate
Replies: 15
Views: 4981

Re: Ammonium Persulphate

hey- I can appreciate your custom-size problem ... but PP containers are plentiful... as are 1 gallon buckets. <p>Just that: I'd recommend Anyone working with etchants be CERTAIN to make/find a container that's LEAKPROOF! Cement can hold for a long while... then fail. And plastic stress-cracking is ...
by peter-f
Fri Apr 29, 2005 2:55 pm
Forum: General Discussion
Topic: Solar panel sleight of hand
Replies: 67
Views: 13914

Re: Solar panel sleight of hand

Terri, tell me, what enlightenment do you seek?<p>I can't tell (reading your posts) WHAT you stand for... maybe your tongue is too deeply inserted in your cheek.<p>I, for one, am not afraid of gevernment involvement... if done right. What I seek as evidence of "right" is: - Government does what nobo...
by peter-f
Fri Apr 29, 2005 2:28 pm
Forum: General Discussion
Topic: Solar cells down to details...
Replies: 141
Views: 63327

Re: Solar cells down to details...

No, Stephen... you still don't get my objection to your example!<p>"...In the automobile, the small increases in prodution effficiency are wiped out by inflation."<p>But that's NOT the cause of the loos of econmomy!<p>The 1984 car had NO computer, NO airbags, sealed-beam headlamps - not Halogens, 1 ...
by peter-f
Fri Apr 29, 2005 6:06 am
Forum: General Discussion
Topic: Solar cells down to details...
Replies: 141
Views: 63327

Re: Solar cells down to details...

OK Ian- point taken! But it's certainly better than the Ford!<p>Still - I think this thread is DEAD.<p>That said, time to put your money where your true beliefs are: I for one, own a crumb of GE... their next (to be publicized) venture is high-efficiency coal combustion for turbine power generation....
by peter-f
Fri Apr 29, 2005 5:56 am
Forum: General Discussion
Topic: Clever mechanism...
Replies: 6
Views: 1394

Re: Clever mechanism...

(sorry, I must have something upset in my settings... no animation! What - other than default IE settings do I need?)<p>Lots of fun watching common gear or cam designs... thanks!
by peter-f
Fri Apr 29, 2005 5:54 am
Forum: General Discussion
Topic: Ammonium Persulphate
Replies: 15
Views: 4981

Re: Ammonium Persulphate

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by JOHN GAGARIAN: Re: ammonium persulfate. <p>... I use the mix at 130 F degrees. and the best method i found is to use a pivoting tank made of acrillic. <hr></blockquote><p>Acylic? Wouldn't Polypropy...
by peter-f
Fri Apr 29, 2005 4:51 am
Forum: General Discussion
Topic: Solar cells down to details...
Replies: 141
Views: 63327

Re: Solar cells down to details...

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by stephen: [Q]Quote from peter-f:<p>"WHA???? Which luxury model was this... a Chevette was $6000 - made in USA."<p>Just giving someone a break. In 1984, I bought a Japenese pickup truck for $6500. No...
by peter-f
Thu Apr 28, 2005 2:55 pm
Forum: General Discussion
Topic: Solar panel sleight of hand
Replies: 67
Views: 13914

Re: Solar panel sleight of hand

<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Originally posted by terri: ...And! And! <p> And I'm glad you're pointing out the subsidy system! ....<p>[ April 28, 2005: Message edited by: terri ] <hr></blockquote><p>Terri: Well, now that you DID bring up the subsi...