Sometimes I find myself in a paddock talking on skype over a solar powered 802.11b network and there are no power outlets so I am quite happy to have a couple hours of battery life.
I tried several different VOIP programs some of which were based on SIP and set up fwd accounts and the like but in the end we chose skype for one reason only: the call quality was superior. Most of our calls are placed over 802.11 networks in remote areas that have no cell phone coverage and use satellite for the internet connection.
Some calls have to make it through seven access points and then out over 800ms of latency and skype calls actually still are very usable and even sound good. I don't know how they pull that off. I'm willing to put up with being a supernode for that.
You can't run 1.2 MW on coaxial cable though can you? Really I don't know if coax that hefty exists. Even big microwave towers cell sites don't run 1.2 MW through their antennas.
To get 1.2 MW of Power flowing into your car you are going to either need a 1000A at 12kV or 100A at 120kV.
Either way you are going to have a pretty meaty conductor or one that is insulated to hell.
The slow night charge (when electricity is cheaper) will be a good option
The article said it will generate 24 hours a day. If they are using 3000 tons of garbage a day I'd expect them to get more than a continuous 3 MW out of that. So maybe it is a 120MW facility that would generate 120 MW continuously?
For the first time ever a girl gave me her myspace URL and email address instead of her phone number in the bar last week. I said I wouldn't accept it and demanded her phone number which she coughed up. I called the phone number a couple hours later at 3am and had an incoherent conversation with somebody (parents?). Now I am on myspace.
a place where i wrote the the frequency control loop for the governor on the generator rarely has clocks that are correct too. and everybody's motors are constantly speeding up and slowing down. glad i don't live there
To prevent this a utility started an insulator washing program. Guess how many outages they caused when the washing caused the insulators to fail? (lots!)
You'll find the neutral conductors on high voltage transmission lines are actually hollow. This is because current tends to flow in the outer diameter of a wire. You'll also find that the hollow space inside those skywires has fiber in it. I know the transmission lines in Ontario have fiber in the skywires and we haven't built any new ones for a looong time.
The utilities probably used the fiber for their scada systems but I hope they do more than that with it now.
DC Lines are really cool but damn it must costs a lot to procure the 500 MVA rectifier / inverter set up. I think having to buy an inverter is a major black eye for solar power as well (unless you have DC loads).
in france, 80% of electricity come from nuclear power
They don't have enough nuclear capacity to handle the peak demand so they pump water uphill at night with the excess nuclear capacity and then can use hydro to handle the peak during the day. Brilliant!
It's easy to decrease your emissions when you are burning soft coal with dirty processes. the coal plants in north america burn relatively clean so there is lots of opportunity for the rest of the world to decrease their emissions by upgrading plants.
other than canada, only countries who stand to gain from the kyoto protocol signed it. Most of the european countries who signed are still burning soft (dirty) coal, so reducing emissions for them will be as simple as upgrading plants that need to be upgraded anyway. Then they will have met their targets and have 'emissions credits' to sell to countries like Canada who can't reduce emissions much further and will need to purchase the credits.
The US was smart not to sign, it will just be an economic burden that benefits other countries.
One nice feature in many ftp clients that doesn't exist for your web browser is to download all files which match a certain mask, or all files in a directory.
prompt mget *.tgz
or users might have nice ftp clients that have transfer queues so they can Q up several directories, hit go and come back later.
If you expect people to transfer more than about 7 files at once I would definitely setup that FTP, which can be run securely enough with chroot.
I have 1.1 mbit downstream and 2.2 mbit up from Sympatico for 60$ a month (CDN). It has been down once for an afternoon in over four years. We had an ice storm which knocked out power to my neighbourhood in ottawa for 5 days but my DSL still worked with my laptop and the modem powered by rigged up batteries.
I see 130 kbyte/sec reliably up and down, and from time to time i'll get 180kbyte/s downstream. No bandwidth caps and I have had the same IP for 4 years.
Unfortunately my service is grandfathered and the dsl they install now is the 128kbps upstream and maybe 1mbit down.
I think they stopped offering my service because it required house calls - a technician had to come and install a POTS splitter on the line.
My service kicked the pants off cable for a long time, and with the better upstream I have i thikn it still does.
imagine down the road when we have 10 gig portable mp3 players, the tax will be $210...surely more than the cost of the player! when we have 100 gig portable mp3 players, 2100$ in taxes. Obviously they haven't really thought this through...
If this is actually going to happen I really am going to write my MP
I checked the web out for sites about taking video footage from RC helicopters a few weeks ago. It looks like people are doing it for way less than money these MIT folks.
I wanted to build an unmanned RC heli with the ability to track a target but I don't think I have the cash to fund that project.
here are some of the sites that i found about RC helicopter photography: RC Helicam - with videos flying an RC heli, pictures taken by the RC heli remote controlled aerial photography - lots of links, basic info hovercame - these guys are actually doing commercials cyberflyer DIY guide to rc heli cams!
enjoy, this was a solid 3 hours of browsing.kite photography had some great pictures too.
22 hours of class per week doesn't seem all that bad. I am in my second year of EE while I have 29 hours of class a week this year, i had 36 hours of class a week first year. 20 would have been lovely.
it currently lacks symlinks and I wouldn't recommend it for industrial use, but it works well and has quite an active mailing list, lots of users and people supporting them.
i have had adsl in ottawa ontario since the end of 97 that is 2.2 mbit down and 1.1 up. i get about 140k/s up max, and 180 down. no transfer limitations of any kind, static IP, and in the 5 years I have had the service it was down one sunday, and then just recently because a squirrel chewed up my line. There was a week in there when I had no power, but the phone worked so I assume the adsl would have too had I power for the modem.
60$ CDN dollars a month. its more than cable, but well worth it for the extra upstream in my opinion.
this service has now been replaced by a slower one, but nobody has to come to your house to install it.
There are so many video codecs available it is hard to have all the software you need to view all of them without having all that software conflict (on windows that is). The old DivX;-) 3.11 codec seems to be pretty standard and I thought I heard the new openDivX codec wasn't quite up to par yet, so what is THE codec to use that will let people with macs, unix and windows watch your movies (in high quality, i am not interested in streaming), and without having to purchase any software too.
Slashdot Mirror
Sometimes I find myself in a paddock talking on skype over a solar powered 802.11b network and there are no power outlets so I am quite happy to have a couple hours of battery life.
I tried several different VOIP programs some of which were based on SIP and set up fwd accounts and the like but in the end we chose skype for one reason only: the call quality was superior. Most of our calls are placed over 802.11 networks in remote areas that have no cell phone coverage and use satellite for the internet connection.
Some calls have to make it through seven access points and then out over 800ms of latency and skype calls actually still are very usable and even sound good. I don't know how they pull that off. I'm willing to put up with being a supernode for that.
You can't run 1.2 MW on coaxial cable though can you? Really I don't know if coax that hefty exists. Even big microwave towers cell sites don't run 1.2 MW through their antennas.
To get 1.2 MW of Power flowing into your car you are going to either need a 1000A at 12kV or 100A at 120kV.
Either way you are going to have a pretty meaty conductor or one that is insulated to hell.
The slow night charge (when electricity is cheaper) will be a good option
The article said it will generate 24 hours a day. If they are using 3000 tons of garbage a day I'd expect them to get more than a continuous 3 MW out of that. So maybe it is a 120MW facility that would generate 120 MW continuously?
For the first time ever a girl gave me her myspace URL and email address instead of her phone number in the bar last week. I said I wouldn't accept it and demanded her phone number which she coughed up. I called the phone number a couple hours later at 3am and had an incoherent conversation with somebody (parents?). Now I am on myspace.
I've always wondered what made this guy so brave
a place where i wrote the the frequency control loop for the governor on the generator rarely has clocks that are correct too. and everybody's motors are constantly speeding up and slowing down. glad i don't live there
Your utility has plans? at ours you have to find the guy who buried the cable and ask him where it might be
To prevent this a utility started an insulator washing program. Guess how many outages they caused when the washing caused the insulators to fail? (lots!)
You'll find the neutral conductors on high voltage transmission lines are actually hollow. This is because current tends to flow in the outer diameter of a wire. You'll also find that the hollow space inside those skywires has fiber in it. I know the transmission lines in Ontario have fiber in the skywires and we haven't built any new ones for a looong time.
The utilities probably used the fiber for their scada systems but I hope they do more than that with it now.
DC Lines are really cool but damn it must costs a lot to procure the 500 MVA rectifier / inverter set up. I think having to buy an inverter is a major black eye for solar power as well (unless you have DC loads).
in france, 80% of electricity come from nuclear power
They don't have enough nuclear capacity to handle the peak demand so they pump water uphill at night with the excess nuclear capacity and then can use hydro to handle the peak during the day. Brilliant!
"Firefox prevented this site from opening 2194 popup windows. Click here for options..."
sure glad I have pop-up blocking enabled
It's easy to decrease your emissions when you are burning soft coal with dirty processes. the coal plants in north america burn relatively clean so there is lots of opportunity for the rest of the world to decrease their emissions by upgrading plants.
other than canada, only countries who stand to gain from the kyoto protocol signed it. Most of the european countries who signed are still burning soft (dirty) coal, so reducing emissions for them will be as simple as upgrading plants that need to be upgraded anyway. Then they will have met their targets and have 'emissions credits' to sell to countries like Canada who can't reduce emissions much further and will need to purchase the credits.
The US was smart not to sign, it will just be an economic burden that benefits other countries.
One nice feature in many ftp clients that doesn't exist for your web browser is to download all files which match a certain mask, or all files in a directory.
prompt
mget *.tgz
or users might have nice ftp clients that have transfer queues so they can Q up several directories, hit go and come back later.
If you expect people to transfer more than about 7 files at once I would definitely setup that FTP, which can be run securely enough with chroot.
I have 1.1 mbit downstream and 2.2 mbit up from Sympatico for 60$ a month (CDN). It has been down once for an afternoon in over four years. We had an ice storm which knocked out power to my neighbourhood in ottawa for 5 days but my DSL still worked with my laptop and the modem powered by rigged up batteries.
I see 130 kbyte/sec reliably up and down, and from time to time i'll get 180kbyte/s downstream. No bandwidth caps and I have had the same IP for 4 years.
Unfortunately my service is grandfathered and the dsl they install now is the 128kbps upstream and maybe 1mbit down.
I think they stopped offering my service because it required house calls - a technician had to come and install a POTS splitter on the line.
My service kicked the pants off cable for a long time, and with the better upstream I have i thikn it still does.
how does google get away with it then?
If this is actually going to happen I really am going to write my MP
I wanted to build an unmanned RC heli with the ability to track a target but I don't think I have the cash to fund that project.
here are some of the sites that i found about RC helicopter photography:
RC Helicam - with videos flying an RC heli, pictures taken by the RC heli
remote controlled aerial photography - lots of links, basic info
hovercame - these guys are actually doing commercials
cyberflyer DIY guide to rc heli cams!
enjoy, this was a solid 3 hours of browsing .kite photography had some great pictures too.
you are the one that bought that shit dvd player, you have nobody to blame except yourself (unless it was a gift)
22 hours of class per week doesn't seem all that bad. I am in my second year of EE while I have 29 hours of class a week this year, i had 36 hours of class a week first year. 20 would have been lovely.
it currently lacks symlinks and I wouldn't recommend it for industrial use, but it works well and has quite an active mailing list, lots of users and people supporting them.
60$ CDN dollars a month. its more than cable, but well worth it for the extra upstream in my opinion.
this service has now been replaced by a slower one, but nobody has to come to your house to install it.
obviously .wm* is out