top Multiple Manufacturers Push Hydrogen Fuel Cell Cars, But Can They Catch Tesla?
If you're going to compare that way, you need to factor the relative efficiencies of the two fuels -
electricity can be converted into kilometers about 3.5 times as effectively as petrol can.
Rule of thumb; Electric cars get 5 km to the kWh
500 kW watts for 10 minutes = 83 kWh = 400 km = 250 miles
But really, who cares which is faster, which do you think about first when deciding what car to buy;
Fuel economy, price, style, carrying capacity, cost of maintenance, or speed of fill up?
Charging doesn't have to be fast, it just needs to be fast enough.
For most people, electric cars can be charged at home overnight.
It may be a longer overall time, but it's a lot less of my time (a few seconds to plug in vs. a few minutes to fill up). For long drives, a diner/charging station would work fine. Thirty minutes to eat and charge.
top In a Self-Driving Future, We May Not Even Want To Own Cars
We have a "self driving" car technology, it's called a "taxi", and millions of people use them and avoid buying a car already.
Most of us avoid these due to a thing I like to call "being rich enough not to have to put up with that shit".
I own a car because I don't want to share.
That's not going to change if the car can drive itself.
top First Detailed Data Analysis Shows Exactly How Comcast Jammed Netflix
Settlement free peering between tier 1 carriers only happens when the flow of traffic is roughly balanced between the contracting peers.
When one peer is pushing a lot more traffic onto the other network, then that usually goes out the window and the pusher is required to pay the receiving network.
So you're saying if Netflix downloaded more data from Comcast than they sent, that Comcast should pay them?
I have no problem uploading an amount equal to what I download from Netflix, or even more, if you really think that will solve the problem. I don't really control the software on my Roku box, but I don't mind if Netflix puts some P2P software on it for help carrying their own traffic.
top Ask Slashdot: How Would You Build a Home Network To Fully Utilize Google Fiber?
I've found two rules to be very helpful when dealing with this sort of problem;
1. Don't buy it until you need it.
Electronics in general are going to be cheaper, faster, and smaller in the future, so put off all buying of stuff as long as it's reasonable to do so.
2. When you need it, buy it without hesitation.
If the current best solution is X, then pay for X and don't worry about it. Yes, there's a better way, and yes, there's going to be an even better way in the future, and yes X is going to suck in 10 years. But there's no way to avoid that so don't sweat it.
You have Google fiber. You have a 600Mbps solution to connect to that fiber. Do you need more than that,
right now? If not then apply rule 1, and do nothing. If so, then apply rule 2 and wire your house with Cat6 (or pay someone else to do it.) about a month and a half ago
top Adobe Spies On Users' eBook Libraries
Injection attacks or other unsanitized data.
Material that you (or Disney) hold the copyright to. Anything illegal to export/import (nuclear secrets, cryptography) Sensitive personal information of important people. Any information Homeland has forbidden you from discussing. Even just the simple volume of the material could be a problem. (Of course the list of my ebooks is 24 terabytes, why how big is yours?)
The list of things they can get into trouble just having a copy of is almost endless.
top Adobe Spies On Users' eBook Libraries
If Digital Editions, or any other program, is sending meta-data about the contents of hard drives, then they deserve to what they get.
I picture a small program that creates millions of pseudo-random file names ending with
.epub, .pdf, or whatever else D.E. is scanning for. I'd certainly be willing to dedicate a few gig to the task, I'm sure there are several thousand others who feel the same.
top The Era of Saturday Morning Cartoons Is Dead
It's not porn
... it's HBO! http://www.youtube.com/watch?v=EUBiOOx0Pxw
top Solar Plant Sets Birds On Fire As They Fly Overhead
Except you can not exceed the solar power that hits the surface of the planet from the sun.
There are actual, serious, plans to put solar in orbit. Solar
isn't limited to the surface of the planet.
But let's ignore that power-in-sky thinking for a moment.
The amount of sunlight that hits the Earth is an astronomical 150,000,000,000,000,000 Watts. That's around 1000 times man's total energy usage.
To put it in per capita terms;
At noon, 1 square meter on the surface receives about 1 kilowatt of energy. The average over a day is 4 kilowatt hours per square meter. A typical home is 100 square meters, and uses 24 kilowatt hours a day. At 12% efficiency, you only need to cover half the roof with photovoltaics to supply 100% of that homes electric needs.
top Companies That Don't Understand Engineers Don't Respect Engineers
Valuing people by their number of direct or indirect reports makes a lot of sense. If I am one of a group of ten people and I'm 20% more productive than the others, my extra contribution only adds about 2% to the total. If I am a good manager my staff might be 5% more productive than an average manager's.
If you're good you should be in charge of more people, but being in charge of more people doesn't make you good.
Or to put it another way, just because a position is important doesn't mean the person in the position is.
top Mass. Supreme Court Says Defendant Can Be Compelled To Decrypt Data
"We know you did it, so until you confess, we're going to hold you in contempt of court."
The court is claiming that they really, truly, pinky swear know he did it, because they heard him say so, so that whole "can't force you to testify against yourself" thing doesn't apply.
I don't believe the spirit of the 5th is that it doesn't apply when we know you're guilty.
top Cable Boxes Are the 2nd Biggest Energy Users In Many Homes
A typical set-top cable box with a digital recorder can consume as much as 35 watts of power, costing about $8 a month for a typical Southern California consumer.
A "typical Southern California consumer" pays less than 20 cents per kWh.
35 Watts * 24 hours/day * 30 days/month = 25,200 Watt hours or 25 Kilowatt hours.
25 Kilowatts * $0.20/Kilowatt hour = $5.00
top EU's Top Court May Define Obesity As a Disability
If being fat is a choice, why are more people choosing it now than in the past?
top Imparting Malware Resistance With a Randomizing Compiler
Viruses in nature mutate randomly. Computer viruses don't.
Computer virus designers are intelligent, hostile, and evil in intent. If there's a way around it, they'll find it and it's game over.
Besides, many if not most attack vectors wouldn't care a whit - tricking a user into executing code would still work, SQL injection, cross site scripting...
top Mental Illness Reduces Lifespan As Much as Smoking
Syphilis drives you crazy, and then kills you. It doesn't kill you and then drive you crazy.
Any disease or genetic condition which slowly kills you is likely to make you depressed first.
top Is LG's New Ultra Widescreen Display Better Than "Normal" 4K?
First of all, 3440x1440 isn't better than 3840x2160.
If you really truly believe that a 21.5 aspect ratio is better than a 16:9, you could put a piece of tape over the bottom 500 lines of a "standard" 4k display and still end up with a higher res.
How about building a display panel that doesn't have edges?
Give me a dozen megapixel panels and a let me arrange them however I like. Make them modular, interchangeable, cheap, and the whole display becomes expandable. Or improve the power efficiency, or the cabling, or the weight, or the color depth, or... any of a dozen other things I care about more than the aspect ratio of a single panel.
If you absolutely must claim that one aspect ratio is superior to another, then why not go with the golden ratio?
At least that way you can put two together and still have the same ratio.
top Teachers Union: Computers Can Negatively Impact Children's Ability To Learn
Maybe the reason those kids aren't paying attention is because they are learning stuff elsewhere and feel you're just wasting their time.
Or maybe it is, as the union suggests, because they realize how lame school is by comparison.
Or maybe kids are paying better attention now then they have in the past, and the union is falling for the golden age fallacy.
http://www.princeton.edu/futureofchildren/publications/docs/10_02_05.pdf The limited evidence available also indicates that home computer use is linked to slightly better academic performance.
I'll take that limited evidence over the "no evidence" supplied by the teachers union.
top OpenBSD Team Cleaning Up OpenSSL
While it might be nice to use a safe(r) language, can't we at least have a compile option in C that adds bounds checking?
And while you're at it, how about making it impossible to execute code that isn't in the code segment and write protecting the code segment.
top The 3D Economy — What Happens When Everyone Prints Their Own Shoes?
There's an amazing technology called "seeds".
These "seeds" grow into actual, eatable food. Even better, they're solar powered and the feedstock is water. And to top it off, one of the things these "seed" machines can manufacture is more seeds!
Thanks to this technology, the future will be filled with people who grow their own food, and things like supermarkets will become a relic of the past.
top NSA and GHCQ Employing Shills To Poison Web Forum Discourse
A slashdot sock puppet could follow the classic ideas in "The Gentleperson's Guide To Forum Spies (spooks, feds, etc.)"
Slashdot moderation makes it a lot harder. For example, off topic rants are down modded to oblivion, and the structure of the reply tree make forum sliding much more difficult.
It would be far easier for the NSA to destroy Slashdot by buying it, then changing the way the forum works.
top LA Times: Snowden Had 3 Helpers Inside NSA
Unable to put Snowden on trial, the NSA has decided to sacrifice three other employees.
I look forward to the circus of their trial, I hear they'll be serving bread.
AnotherBlackHat has no journal entries.