Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?
DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. Check out the new SourceForge HTML5 Internet speed test! ×

Comment Re:Breitbart (Score 1, Interesting) 212

In fact it almost seems (like in your case) that there is some sort of neocon badge of honor in being willfully ignorant of the facts.

Actually, there's quite a few people out there who are willfully ignorant of the facts, and proud of it. In fact, I would say that most Trump supporters are indeed willfully ignorant.

How else could you vote a person into the most powerful office on the planet who blatantly lies far more often than not, has been married 3 times and flaunts every other norm while running for office and is also willfully ignorant themselves?

Comment Re:your washer has a cycle time? (Score 1) 602

The washer works fine, although it is nice if you leave the door open for a day once in a while to dry it out in there otherwise, since the door is sealed, any moisture left in the drum after a cycle just sits there until next time you use it.

Exactly. Mine says to leave the door open as much as possible. No issues with smell on mine.

The dryer doesn't even have cycle times. It just runs until the clothes are dry. It does this using a dryness sensor, the same type which has been around since 1980 or so. If you do run it on a timed cycle, you can adjust the time it runs in one minute increments. So I have no idea what your tech was telling you about mandating short cycle times or burners that aren't hot enough.

I did have a problem with my dryer not drying well (extremely long run times, clothes always came out damp), but it had nothing to do with "the govt". The DOE doesn't even rate dryers for efficiency as they're all basically the same except for heat pump models which are nearly impossible to get in the USA.

Now the problem I had with my dryer is that the vent tube clogged up significantly after a few years of use. Not enough to trigger the back-pressure sensor on the dryer (it doesn't even appear that works to me), but after pulling the dryer away from the wall and investigating it was nearly 50% full of lint in some spots.

So I bought a long extendable vent cleaner and cleaned out the dryer vent thoroughly. Air flow rate went up a large amount and clothes started drying normally again, too.

So check your dryer vent for lint build up every so often.

Comment Re:Let me know when it gets to production (if ever (Score 1) 81

That's a good point, it could help plug-in hybrids, or even regular hybrids.

But given that it's not very energy dense and other chemistries, what would you rather have? A battery that starts out with 25-50% more energy density and degrades 20-30% over the life of the car, or a battery that starts out with less but only loses a couple percent? I'd personally have the battery that starts out with more energy density even if at the end of life the density is similar.

Comment Re:Let me know when it gets to production (if ever (Score 3, Insightful) 81

Long lasting batteries are great but not as important as lower cost and higher capacity to weight ratio...

Exactly. The energy density of these cells are very average at best.

It's nice that they last a long time as that makes them very useful for certain applications, but for EVs that's not the major issue preventing EVs from being more appealing. The major issue is energy density and cost.

Extreme durability might help with the cost aspect as batteries would hold more value for re-use after a car is otherwise useless, but it would be for other applications such as perhaps grid-storage where having batteries that basically last forever would be very useful.

Comment Re:Intense skepticism. Fraud? (Score 1) 81

The BIG issue is that the battery would not use an expensive, scarce metal: Lithium. The fact that the author doesn't mention that indicates he understands extremely little.

But Lithium is not expensive or scarce relative to current costs of lithium battery manufacture. Other metals and manufacturing costs dominate the current cost of lithium cells.

Comment Let me know when it gets to production (if ever) (Score 5, Interesting) 81

PR like this claiming the next breakthrough in batteries has been coming out for years, but what actually makes it to production are basically minor tweaks to existing chemistry.

Inevitably what happens is something keeps the technology from being mass produced, or is too expensive, or simply does not function as advertised.

I hope I'm wrong, but I'm not holding my breath.

Comment Re:Range is the issue (Score 1) 258

Uh, you were the one who was comparing the i3 to the Model S.

Regardless of the cars being in different classes, you still see people comparing all types electrified vehicles against each other.

I know a LOT of Nissan LEAF owners who sold their LEAFs for a Model S, for example. The LEAF is a class down for the i3 (so even further away from the Model S), yet there you go.

I have a LEAF and have considered the same thing, but just can't justify the luxury car price tag and just don't need the extra range all that often.

Comment Re:Range is the issue (Score 1) 258

You should just use the EPA numbers which measure energy from the wall. Many people suspect that the major difference in efficiency between the 60 and 85 kWh Model S were the tires/wheels used for testing - the 60 kWh Model S is lighter, but no-one except Tesla seems to know by how much.

Model S 85 kWh: 38 kWh / 100 mi or 2.60 mi / kWh
Model S 60 kWh: 35 kWh / 100 mi or 2.85 mi / kWh
BMW i3: 27 kWh / 100 mi or 3.7 mi / kWh
Nissan LEAF: 30 kWh / 100 mi or 3.3 mi / kWh
Spark EV: 28 kWh / 100 mi or 3.57 mi / kWh

The i3 is about 30% more efficient than the Model S - very impressive! On the city cycle, it's 50% more efficient! I imagine if the i3 were a lower and longer car (and thus more aerodynamic) it'd do even better on the highway cycle.

Comment Re:Nuclear power is too expensive (Score 1) 288

You forgot to mention SONGs:

2 GW of nuclear power mothballed right after they finished spending $671M upgrading them. And who do you think the utilities want to pay for the lost revenue? I'll give you a hint - they sure don't wan it coming out of their guaranteed profit margin...

Comment Re:It doesn't have to supply all our power (Score 1) 769

There is this stupid tendency here on slashdot to dismiss partial solutions to any problem as unworkable. Solar does not have to supply all our energy needs to still be a good idea. The economics of it still need to make sense but there is no principled reason why it should not be a significant part of the energy supply equation.

Not just slashdot, it happens everywhere.

"Electric cars suck, I can't drive it more than miles / charge!"

Submission + - Heartbleed: Serious OpenSSL zero day vulnerability revealed ( 1

An anonymous reader writes: ZDNet reports: New security holes are always showing up. The latest one, the so-called Heartbleed Bug in the OpenSSL cryptographic library, is an especially bad one. The flaw can potentially be used to reveal not just the contents of a secured-message, such as a credit-card transaction over HTTPS, but the primary and secondary SSL keys themselves. This data could then, in theory, be used as a skeleton keys to bypass secure servers without leaving a trace that a site had been hacked.

Comment Re:Do they distribute the source? (Score 2) 208

There's a lot of GPL software in Ubuntu, starting with the Linux kernel. Does Tesla distribute the source code to Model S owners that ask?

I am not aware, yet. Have only see one owner be vocal in the past about trying to get it, but haven't . A few relevant threads. Lots of noise and general ignorance about Copyright in there, so prepare yourself.

Anyone want to get the source code for the Linux (etc.) in your car?
Running on Linux
Copyright (and Libel) Discussion

Slashdot Top Deals

No amount of genius can overcome a preoccupation with detail.