This is why utilities put limits on power factor, and why some consumer electronics (PC Power supplies) are starting to include power factor correction. Big industrial loads have been doing it for a long time.
We can correct for it, but sometimes the effort is not worth it.
We have thrown *so* much money into fusion over the last 50 years, and have very little (practical results) to show for it. Aparantly were have another 30 years to go before things are feasible....
DSL is a broadband electrical signal, covering frequencies from kHz to MHz. Im betting that would make it high frequency. BTW - telephone copper is often (or mostly) not twisted.
BPL is RF on an electric line
You can't send radio signals (photons) down a wire, but you can send their electrical equivalent.
For all intents and purposes, HF electrical signals == Radio. A wire can act as an antenna, so any HF electrical signals can produce RF emissions.
So, DSL can also cause interference - it's just that it is spread spectrum, so doesnt cause mass interference on a particular frequency.
Whilst that is frustrating, that wasnt the intention of my comments.
Yes, a bike can outaccelerate your car, probably by a dramatic margin. That means a motorcyclist can find and take advantage of a hole in traffic much more effectively than can a car
Hole in traffic = braking space. Ive been down the freeway where cars were allready too close, and yet riders decided they could zip in an out of those spaces. Not smart. In addition, changing lanes and travelling much faster than the traffic would make it difficult for drivers to see riders in their mirors.
Please, im not trying to tar all motorcyclists wiht the same brush, but ive seen many motorcyclists perform some really stupid, life risking manouvers. Car drivers do plenty of stupid things too, but they tend to have more padding.
I see far more motorcycles darting dangerously between traffic on the freeway tha I do regular cars. Considering there are umpteen times more cars on the road, this is disturbing.
It's riders like those which give motorcyclists a bad name.
I agree with what you are saying completely, and have done a similar thing with my (public freenet) AP. Better firewalling, no WEP.
That said, enabling WEP on a private network is a good way of saying "move along" to the casual wardriver/chalker. People are lazy, and will just find n easier target.
We had this problem on the WaFreenet, so we set about creating some software to fix it.
The result was frottle. It's a bit of a kludge, but essentially provides a virtual token bus over ethernet. It runs at the wrong layer (UDP), but is suprisingly effective. Before, with 14 clients to the HillsHub AP (many clients in the 10's of kilometers), we'd get crippled throughput rates below 10kB/sec. Now multiple users can sustain data rates above 80kB/sec (or better depending upon load).
I recall rwading an articale a year or so ago, where ultrasonic trnnsducers fitted to a person could stimulate bone grownth, thereby maintaining bone density in space trips.
Rather than stop the spammers, how about making it illegal for businesses to have their products advertised via spam. It will be enforcible because they have to supply you with a link their product somehow...
If we remove the spammers customers, then they wont have an income stream.
TDMA is similar - you send mail to someone, it sends you back a confirmation, you reply, then you get whitelisted.
This way, a new sender must have a valid return address to send unsolicited mail. You could even make the process more manyal by having the image you talk about.
Im inclined to agree with you, as my ISP also maks my spam. I tend to only get about 1 - 2 a day. However, here are just some of the reasons why people hate spam:
1) Not every ISP runs a spam filter. 2) There is no limit to the amount of spam you can recieve 3) Spam costs you money/bandwidth 4) Multiply the money/bandwidth costs by the billions of spam, and the waste/cost is unbeliveable 5) Spam is often deceptive and offensive. E.g, little kids mailboxes getting porn spam.
The "dead man" directly refers to the human part. When the (train) operator dies from a heart attack, they stop hitting the switch, and the device is stopped.
System for paying people for stuff, just like you do in real life, but with computers....
It's not "invention", just the evolution of technology. Financial transactions are a common, existing activity, and replacing paper and pen with machine does not seem like reasonable grounds for a patent.
Sure - license the software, but the idea is free.
And what about a 4 digit PIN number? 1 in 1000 people will have the same code. The trick is to not use biometrics as the primary key, but instead use it as an overall means of verification.
For instance - How much less credit card fraud would there be if you had to verify not by signiature, but by fingerprint? Much harder to reproduce *quickly* by a purse snatcher / pickpocket.
Bikes with drailleurs have the most efficient transmission possible
Are you serious? A chain zig-zaging around the tensioner produces alot of drag. Certainly not efficient.
With a pair of gears, the distance of point of contact between teeth and the axis varies...This induces vibration and is a source of drag.
Gear tooth profiles have been designed to avoid this - eg Involute and Cycloidal tooth design. We've been using gears for much more demanding purposes than bicycles for quite some time.
In order to move the charge to a capacitor, you need an electromotive force. Normally, the differences in voltages could do this, but: 1) The logic voltage is very small 2) As soon as you start charging the capacitor, the capacitor voltage rises and your potential dissapears.
You could do it with more complicated circuits like charge pumps, voltage doublers, DC-DC converters etc, but that would be very demanding and expensive.
It's just not a practical level of waste to try and deal with.
Re:How I lost 40 lbs in the last 5 months..
on
Hackers On Atkins
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· Score: 1
I agree.
I wanted to lose weight before my wedding (yes, married geeks do exist), so I reduced my calorie intake. 1500 calories a day, and I lost 9 kilos in 6 weeks. It was very rewarding.
Whist I didn't eat alot of fat/sugars before, I used to really bulk up on the carbs - mostly pasta. By cutting my carbs to around 100 grams at dinner, and replacing the bulk with veggies, I was still able to eat great meals. Breakfast was toast, and lunch was usually two rounds of tuna sandwiches.
Basically it was a healthy, balanced diet. The pyramid was probably veggies first, meats, carbs, then fats.
Im still keeping it up to a certain extent, balancing beer and chips with some healthy meals.
Slashdot Mirror
They allready do that - you'll probably find all laptop power supplies are switch mode, operating in the order of 100's of kHz.
This does shrink the transformers (# windings is proportional to frequency), however there are limits.
This is why utilities put limits on power factor, and why some consumer electronics (PC Power supplies) are starting to include power factor correction. Big industrial loads have been doing it for a long time.
We can correct for it, but sometimes the effort is not worth it.
Science can be very, very stupid too.
We have thrown *so* much money into fusion over the last 50 years, and have very little (practical results) to show for it. Aparantly were have another 30 years to go before things are feasible....
The pills are antioxidants, and regularly sold as health supplements. I dont think it is putting the soldiers at risk.
Or before people mindlessly click, they can hover over the link and see the whole url in the status bar - or at least a fair bit of it.
DSL is a HF signal I don't think so
DSL is a broadband electrical signal, covering frequencies from kHz to MHz. Im betting that would make it high frequency. BTW - telephone copper is often (or mostly) not twisted.
BPL is RF on an electric line
You can't send radio signals (photons) down a wire, but you can send their electrical equivalent.
For all intents and purposes, HF electrical signals == Radio. A wire can act as an antenna, so any HF electrical signals can produce RF emissions.
So, DSL can also cause interference - it's just that it is spread spectrum, so doesnt cause mass interference on a particular frequency.
"How dare he, when I'm stuck here?"
Whilst that is frustrating, that wasnt the intention of my comments.
Yes, a bike can outaccelerate your car, probably by a dramatic margin. That means a motorcyclist can find and take advantage of a hole in traffic much more effectively than can a car
Hole in traffic = braking space. Ive been down the freeway where cars were allready too close, and yet riders decided they could zip in an out of those spaces. Not smart. In addition, changing lanes and travelling much faster than the traffic would make it difficult for drivers to see riders in their mirors.
Please, im not trying to tar all motorcyclists wiht the same brush, but ive seen many motorcyclists perform some really stupid, life risking manouvers. Car drivers do plenty of stupid things too, but they tend to have more padding.
I see far more motorcycles darting dangerously between traffic on the freeway tha I do regular cars. Considering there are umpteen times more cars on the road, this is disturbing.
It's riders like those which give motorcyclists a bad name.
From what I read, it also significantly increased noise too.
I saw some pictures from a spectrum analyser, and at 100mW the output was terrible. Potentially illegally noisy.
I agree with what you are saying completely, and have done a similar thing with my (public freenet) AP. Better firewalling, no WEP.
That said, enabling WEP on a private network is a good way of saying "move along" to the casual wardriver/chalker. People are lazy, and will just find n easier target.
We had this problem on the WaFreenet, so we set about creating some software to fix it.
The result was frottle. It's a bit of a kludge, but essentially provides a virtual token bus over ethernet. It runs at the wrong layer (UDP), but is suprisingly effective. Before, with 14 clients to the HillsHub AP (many clients in the 10's of kilometers), we'd get crippled throughput rates below 10kB/sec. Now multiple users can sustain data rates above 80kB/sec (or better depending upon load).
I recall rwading an articale a year or so ago, where ultrasonic trnnsducers fitted to a person could stimulate bone grownth, thereby maintaining bone density in space trips.
It would be interresting to see how this went.
Rather than stop the spammers, how about making it illegal for businesses to have their products advertised via spam. It will be enforcible because they have to supply you with a link their product somehow...
If we remove the spammers customers, then they wont have an income stream.
TDMA is similar - you send mail to someone, it sends you back a confirmation, you reply, then you get whitelisted.
This way, a new sender must have a valid return address to send unsolicited mail. You could even make the process more manyal by having the image you talk about.
Im inclined to agree with you, as my ISP also maks my spam. I tend to only get about 1 - 2 a day. However, here are just some of the reasons why people hate spam:
1) Not every ISP runs a spam filter.
2) There is no limit to the amount of spam you can recieve
3) Spam costs you money/bandwidth
4) Multiply the money/bandwidth costs by the billions of spam, and the waste/cost is unbeliveable
5) Spam is often deceptive and offensive. E.g, little kids mailboxes getting porn spam.
"dead man switches"
The "dead man" directly refers to the human part. When the (train) operator dies from a heart attack, they stop hitting the switch, and the device is stopped.
If you want ot share, how about setting your ESSID to "FreeInternet". That makes it pretty clear.
Using free Wi-Fi networks
Bullshit. It wasn't free, it was unsecured. There is a difference, and dont try to kid yourself otherwise.
Because the patent is as broad as saying:
System for paying people for stuff, just like you do in real life, but with computers....
It's not "invention", just the evolution of technology. Financial transactions are a common, existing activity, and replacing paper and pen with machine does not seem like reasonable grounds for a patent.
Sure - license the software, but the idea is free.
A big chunk of the matrix was a Dr Who ripoff
That, and a healthy dose of "Tron".
And what about a 4 digit PIN number? 1 in 1000 people will have the same code. The trick is to not use biometrics as the primary key, but instead use it as an overall means of verification.
For instance - How much less credit card fraud would there be if you had to verify not by signiature, but by fingerprint? Much harder to reproduce *quickly* by a purse snatcher / pickpocket.
I wouldnt think that suspension would be any deterent for a bully. What would work much better is humiliation.
Eg, being forced to wear a sandwich board with the word "loser" in bright orange letters.
Bikes with drailleurs have the most efficient transmission possible
...This induces vibration and is a source of drag.
Are you serious? A chain zig-zaging around the tensioner produces alot of drag. Certainly not efficient.
With a pair of gears, the distance of point of contact between teeth and the axis varies
Gear tooth profiles have been designed to avoid this - eg Involute and Cycloidal tooth design. We've been using gears for much more demanding purposes than bicycles for quite some time.
Possible, but not practical
In order to move the charge to a capacitor, you need an electromotive force. Normally, the differences in voltages could do this, but:
1) The logic voltage is very small
2) As soon as you start charging the capacitor, the capacitor voltage rises and your potential dissapears.
You could do it with more complicated circuits like charge pumps, voltage doublers, DC-DC converters etc, but that would be very demanding and expensive.
It's just not a practical level of waste to try and deal with.
I agree.
I wanted to lose weight before my wedding (yes, married geeks do exist), so I reduced my calorie intake. 1500 calories a day, and I lost 9 kilos in 6 weeks. It was very rewarding.
Whist I didn't eat alot of fat/sugars before, I used to really bulk up on the carbs - mostly pasta. By cutting my carbs to around 100 grams at dinner, and replacing the bulk with veggies, I was still able to eat great meals. Breakfast was toast, and lunch was usually two rounds of tuna sandwiches.
Basically it was a healthy, balanced diet. The pyramid was probably veggies first, meats, carbs, then fats.
Im still keeping it up to a certain extent, balancing beer and chips with some healthy meals.