Search found 24 matches
- Mon Jun 26, 2006 7:38 am
- Forum: General Discussion
- Topic: hybrid math
- Replies: 19
- Views: 8843
Places like California want to start charging drivers by how many miles per year they drive. I believe they are doing this in the UK already. I don't know where you heard that, but it's not true. We do have a "congestion charge" in central London (and in some other cities, I believe) and we have a ...
- Fri Nov 11, 2005 1:06 am
- Forum: General Discussion
- Topic: Looking for an Eprom
- Replies: 3
- Views: 1092
Re: Looking for an Eprom
I seem to remember that you used to be able to get 16 bit wide EPROMs.
- Wed Oct 26, 2005 12:28 am
- Forum: General Discussion
- Topic: DIY Punk Ethic and Culture
- Replies: 15
- Views: 3717
Re: DIY Punk Ethic and Culture
Philba, my post was slightly tongue in cheek, but the bit about billions is true. I like americans, I have an american wife, from Washington State, like you!
- Tue Oct 25, 2005 5:50 am
- Forum: General Discussion
- Topic: DIY Punk Ethic and Culture
- Replies: 15
- Views: 3717
Re: DIY Punk Ethic and Culture
Actually the British and the American billion are one and the same thing. We (the British) adopted the American version many years ago to save confusion. Obviously it didn't work, since so many people still believe that the British billion is 10E12. Incidentally, can you imagine America doing such a...
- Mon Sep 19, 2005 10:33 am
- Forum: General Discussion
- Topic: Green Laser pen
- Replies: 71
- Views: 14239
Re: Green Laser pen
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Green Vision is ten times the strength of red, blue is ten times that again. <hr></blockquote>
Unless you happen to be a human, in which case your eyes will be most sensitive to the yellow area of the visual spectrum.
Unless you happen to be a human, in which case your eyes will be most sensitive to the yellow area of the visual spectrum.
- Thu Sep 08, 2005 6:54 am
- Forum: General Discussion
- Topic: NiMH cells go dead on shelf too quickly
- Replies: 16
- Views: 5086
Re: NiMH cells go dead on shelf too quickly
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr> Take advantage of the "no memory" characteristic and leave them trickle charging on the shelf until you need them. I mean like 20ma up to 1.4 Volts. <hr></blockquote> From what I have read, it is not a good idea to le...
- Thu Sep 08, 2005 4:31 am
- Forum: General Discussion
- Topic: LED Surprise
- Replies: 11
- Views: 2635
Re: LED Surprise
This is something that always confuses me. If different LEDs produce different amount of light with the same power consumption, and they "don't generate much heat", then where does the rest of the power go in the lower-light-output LED?
- Tue Aug 16, 2005 2:46 pm
- Forum: General Discussion
- Topic: Caller ID Privacy Manager
- Replies: 17
- Views: 4517
Re: Caller ID Privacy Manager
Indeed. I believe the modulation scheme is slightly different as well.
- Mon Aug 15, 2005 11:02 am
- Forum: General Discussion
- Topic: Caller ID Privacy Manager
- Replies: 17
- Views: 4517
Re: Caller ID Privacy Manager
Here in the UK the CID is sent before the first ring. Although it is preceded by a line reversal. Assuming you have some sort of micro involved, you could save the bit stream and then re-modulate it to send it to the selected phone. The modulation part should be much easier that the de-modulation.
- Mon Aug 15, 2005 9:33 am
- Forum: General Discussion
- Topic: Making hydrogen from water & DC
- Replies: 208
- Views: 54942
Re: Making hydrogen from water & DC
Well I'm a little more cynical than most, so I don't believe that tidal energy is "free". Seems to me that if the tides are caused by the rotation of the Moon around the Earth and the rotation of the Earth around the Sun (do I have that the right way round? I'm sure someone will disagree with the ne...
- Mon Aug 15, 2005 9:26 am
- Forum: General Discussion
- Topic: Do orbiting wires generate?
- Replies: 17
- Views: 4196
Re: Do orbiting wires generate?
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Whenever a current is generated in a conductor there is a force generated as well. Any force applied to an orbiting spacecraft will effect it's orbit. It's probably a good thing that the conductor loop broke because it...
- Thu May 26, 2005 1:50 am
- Forum: General Discussion
- Topic: ian's grammactical rules
- Replies: 48
- Views: 10611
- Wed May 25, 2005 9:06 am
- Forum: General Discussion
- Topic: ian's grammactical rules
- Replies: 48
- Views: 10611
Re: ian's grammactical rules
The word "numeracy" was actually invented by British prime minister Harold MacMillan, so I guess you should also credit him with "innumeracy". I like to think of language as an instrument, and as such I think it's worthwhile to try and play to the best of one's ability. I would be very reluctant to ...
- Tue Apr 26, 2005 8:40 am
- Forum: Computer Programming
- Topic: PBC Pokes and Peeks
- Replies: 3
- Views: 2762
Re: PBC Pokes and Peeks
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr> quote:Why does the 16F84 have a status register in BANK 0 and also in BANK 1?[/ <p>Because the Pic is a risc based processor and uses the Harvard style architecture (data memory and program memory are on two different...
- Tue Apr 19, 2005 12:41 am
- Forum: General Discussion
- Topic: pull up register for???
- Replies: 16
- Views: 3929
Re: pull up register for???
Somebody may have mentioned this already, I can't be bothered to wade through all the posts, but... On certain microcontrollers there is a pull-up REGISTER which is used to enable or disable built-in pull-ups on a pin-by-pin basis. They're not usually resistors, they're FETs which source a fairly lo...