Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!


Forgot your password?
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Comment Re:Unbelievable (Score 1) 127

Believe it or not, Comcast was a MAJOR upgrade from AT&T for me.

I used to have the @Home cable modem service and was quite pleased with it. This is before the days of Doxis and there was no throttling. My cable modem was capable of 10Mbps up and 10Mbps down. Later, @Home reduced it to 10Mbps down and 1Mbps up. Times were still good since that was an insane amount of bandwidth.

Then AT&T bought out @Home and switched it to AT&T Broadband Internet (ATTBI). They decided to reduce the upstream bandwidth to 128Kbps, but they aggregated all of the users through the SAME 128Kbps pipe. As a result, on the best of days I saw 40% packet loss with ping. My old 28.8Kbps modem was faster than my cable modem. It was like this for 9 months. Technical support was absolutely useless. There were newspaper articles about it but still the incompetence continued.

When Comcast took over things improved drastically. I will go out of my way to avoid anything to do with AT&T. While Comcast has a lot of problems, it is nothing like what I experienced with AT&T. AT&T was absolute shit.

User Journal

Journal Journal: Agorophobia 2

“Say, Ed! How was your trip? Lager?”
“Hi, John. Yeah, I’ll have a lager. The whole trip was lousy, a journey through hell all the way.”
“Didn't you fly Green-Osbourne?”
“Well, yeah.”
The bartender swore; he was a wealthy man who owned the bar he was tending and quite a bit of Green-Osbourne Transportation

Comment Re:one in every home? (Score 1) 227

The price of batteries is quickly dropping and there are other battery types that show promise for grid storage such as liquid metal batteries. It sounds like the main bottleneck now is the seals to keep air out, otherwise the batteries should be fairly inexpensive and use common materials. This article describes where things are at with liquid metal batteries.

Tesla has said that their grid batteries use NMC, nickel, manganese, cobalt and lithium. Lithium ion batteries typically contain only 3% lithium. The cells should support 5000 charge/discharge cycles, or over 13 years with full daily cycling.. Of course the cells won't be fully cycled every day so they should have a very long life.

Lithium typically is less than 1% the cost of the batteries.

Ethanol for energy storage will be extremely inefficient, especially when one takes into account the costs and energy to:
1. Extract CO2
2. Filter the water to remove contaminants
3. Generate the ethanol
4. separate ethanol from water (which tends to be energy intensive since ethanol loves water)
5. convert the ethanol back into electricity

Liquid metal batteries and pumped storage are currently around 70% efficient. Lithium ion batteries are over 90% efficient. Using ethanol will be significantly lower. Batteries will also require a lot less maintenance.

The efficiency increase from using batteries would more than pay for itself long-term since this option also will likely require a lot more maintenance.

Comment Re:one in every home? (Score 1) 227

The problem is that the efficiency is going to be significantly lower than the other two solutions you mentioned. Battery storage is extremely efficient and pumped storage also isn't too bad. Converting to ethanol is just the first half of the equation. Converting it back also needs to happen and there are significant losses there. The article also doesn't make any mention of efficiency, only of yields so my guess is that it isn't all that efficient.

Comment Re:Trump supporters? (Score 1) 40

That flag was the battle flag of an army who fought Unites States soldiers. As such, it belongs in the ranks of the Isis flag and the Nazi swastika.

And "overbearing federal government?" Hoo, boy... Here's a hint: Neighborhood associations are NOT part of the federal government.

Comment People have no couth. (Score 1) 5

The damned smart phones were invented fifty years too late, right when the GenXers were too busy to teach their kids manners. It's just plain RUDE to talk on the phone or text when you're having a conversation with someone else. Pulling out the phone when it hasn't rung is the height of rudeness.

Telephone etiquette was worked out a century ago. If you have compeny and the phone rings, you say "excuse me", answer the phone and say "I have company, can I call you back?" and the polite answer to that is "sure" unless it's an emergency.

My eighty eight year old mother rages about that behavior, and believes it's the smartphones themselves that causes it!

It isn't internet dysphoria, it's "I'm sick of assholes" dysphoria.

Comment Re:All I saw was: (Score 1) 4

"Blah" originated with Lucille Ball in the "I Love Lucy" TV show, often seeming to say "Blah, blah, blah." But her husband IRL and on the show was a Cuban immigrant. What Lucy was really saying was in Spanish, "Habla, habla, habla," which translates to "Talk, talk, talk."

Comment FFS (Score 1) 1

He never bragged about grabbing mens' crotches, nor called Rosie a redneck, honkey, or cracker or insinuated that her ancestors made her unfit to be a judge, or said that Europe was sending rapists and murderers here, not their GOOD people.

Slashdot Top Deals

An egghead is one who stands firmly on both feet, in mid-air, on both sides of an issue. -- Homer Ferguson