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Comment Something isn't clear... (Score 2) 195

Here is the basic construction of the device from TFA:

"The UIC artificial leaf consists of two silicon triple-junction photovoltaic cells of 18 square centimeters to harvest light; the tungsten diselenide and ionic liquid co-catalyst system on the cathode side; and cobalt oxide in potassium phosphate electrolyte on the anode side."

So, the cathode is immersed in a combination of water and ethyl-methyl-imidazolium tetrafluoroborate (from TFA).

The anode is immersed also in an electrolyte.

The result is that "hydrogen and carbon monoxide gas bubble up from the cathode, while free oxygen and hydrogen ions are produced at the anode." (From TFA)

There's a big piece missing here: how does the CO2 from the atmosphere get to the cathode to be catalyzed, as it is immersed in this ionic fluid? Where does the Hydrogen come from - the electrolyte? It must, because there is no other place for it to come from. This means that the electrolyte is consumed unless it reclaims the Hydrogen, which we've been told is not the point.

So, the questions I have are:

1) How does CO2 get from the atmosphere to the cathode?

2) If the electrolyte is consumed in the process, does the H come from the water in the mix or from the ethyl-methyl-imidazolium tetrafluoroborate? (Slightly less bad if all we have to do is add water, but the fact they don't answer this question leads me to believe the H comes from the ethyl-methyl-imidazolium tetrafluoroborate)

3) Since we're releasing H and CO from the electrolyte in which the cathode is immersed, then we must also necessarily release Oxygen, both from the CO2, and from the electrolyte if it is the water being electrolyzed. Why do they not mention Oxygen bubbling up from the cathode, as it must?

Submission + - Pokemon Go Banned by Fatwa in Saudi Arabia (

EmagGeek writes: Top clerics in Saudi Arabia have issued a fatwa banning the playing of Pokemon Go as a form of gambling.

The decree was issued by General Secretariat of the Council of Senior Scholars on the website of the General Presidency for Scholarly Research and Ifta, Arab News reported Wednesday.

The edict actually updates an existing ban on the Pokemon card and video games before they morphed into the mobile phone virtual reality game that has swept the world.

The clerics issued the old fatwa, (No. 21,758), 16 years ago, declaring the original Japanese game a form of gambling, which is forbidden in Islam,

Comment Re:I'm Outraged! (Score 1) 130

Um, have you ever BEEN to a Chik-Fil-A? Nothing but love and inclusion to be experienced in that place. Do you know why? It is because Jesus commands us to love each other as he loved us. Jesus loved all people, regardless of their sins, transgressions, and shortcomings. He died on the cross to pay for our sins, and believe you me, we are all sinners.

As a Christian, I know I am not endowed with the right to pass judgment. I live my life dedicated to loving my fellow man as Jesus loved me, and the folks at Chik-Fil-A do the same.

John 13:34-35 reads: 34 A new commandment I give to you, that you love one another: just as I have loved you, you also are to love one another. 35 By this all people will know that you are my disciples, if you have love for one another.

Colossians 3:12-17 is one of my favorite passages:

12 Put on then, as God's chosen ones, holy and beloved, compassionate hearts, kindness, humility, meekness, and patience, 13 bearing with one another and, if one has a complaint against another, forgiving each other; as the Lord has forgiven you, so you also must forgive. 14 And above all these put on love, which binds everything together in perfect harmony. 15 And let the peace of Christ rule in your hearts, to which indeed you were called in one body. And be thankful. 16 Let the word of Christ dwell in you richly, teaching and admonishing one another in all wisdom, singing psalms and hymns and spiritual songs, with thankfulness in your hearts to God. 17 And whatever you do, in word or deed, do everything in the name of the Lord Jesus, giving thanks to God the Father through him.

Nothing in the great word preaches hate and intolerance, for we may not judge. Matthew 7 spells it out:

7 âoeJudge not, that you be not judged. 2 For with the judgment you pronounce you will be judged, and with the measure you use it will be measured to you. 3 Why do you see the speck that is in your brother's eye, but do not notice the log that is in your own eye? 4 Or how can you say to your brother, âLet me take the speck out of your eye,â(TM) when there is the log in your own eye? 5 You hypocrite, first take the log out of your own eye, and then you will see clearly to take the speck out of your brother's eye.

Comment The Best AntiVirus Ever (Score 1, Insightful) 113

The best antivirus ever is to use your fucking brain when you surf the Internet. And, if you don't have a brain, to stay OFF the fucking Internet.

99.999% of all viruses and malware are distributed by one of these three methods:

1) Spamming email addresses with infected links promising penile enlargement, instant riches, or notifying you of a problem with an account you don't even have at a bank you've never heard of (and yet people still fall for it)

2) Porn sites. All of them spread viruses and malware. That is their job.

3) "One weird trick," "You'll be shocked," "They don't want you to know," and "This simple method" spam traps on Facebook and other social media sites.

Stop doing these three simple things, and you won't believe the results when it comes to the one weird trick the big AV makers don't want you to know about.


Ask Slashdot: How Can You Manage Developers Distributed Across Multiple Projects? 112

An anonymous Slashdot reader asks whether it's possible to manage a "distributed" team of software developers in different locations who are all assigned to different projects, each with their own independent project managers: All embedded software engineers from multiple offices in different countries are now being reorganized into this new distributed team [with] better control of its own development practices, processes and tools, since everyone is working in embedded software...

While there's extensive material throughout the Internet on best practices for managing distributed teams, it seems to either take an agile perspective, the project manager's perspective or be otherwise based on the assumption that everyone in the team are working in the same project. In my case, I'd be managing a distributed team of developers all assigned to different projects. How can I build cohesion, alignment and trust for my team of embedded software developers in this new three-dimensional distributed matrix organization?

Anyone have any relevant experiences to share with distributed teams or "matrix" organizations? Leave your answers in the comments. How can you manage developers who are all distributed across multiple projects?

Comment Re:Owners will be liable (Score 1) 299

This. However, what self-driving cars (I prefer to call them by a more accurate name - semi-automatic cars) will do is cause an all-out war between the trial lawyer lobby and the auto insurance lobby. Trial lawyers would LOVE to shift liability for auto accidents from a pissant $25K minimum coverage individual policy to Google's stash of billions of dollars.

Comment Re:"Regular maintenance" (Score 1) 271

>> And what is "regular" maintenance on a grease fitting-free sealed and not serviceable component?

I can't tell if you are asking that seriously or not. But, assuming you honestly don't know, "regular maintenance" on ball joints is to replace them when they wear out, which is evidenced by improper motion of the joint when the suspension is unloaded.

There are many wear-out-and-replace parts on a car, even one without an internal combustion engine. Shocks, struts, strut spring seats, strut steering bearings, control arm bushings, ball joints, steering bushings, sway bar and sway bar end link bushings, motor mount bushings (I honestly don't know if Tesla's electric motors ride on bushing mounts, though), and in recent times, brake rotors and even whole transmissions (Ford 6F35 and Aisin Warner AW55 as examples) have made it onto the "wear out and replace" list of maintenance items.

A long time ago, most joints on a vehicle were not sealed and had grease fittings so that the joints could be cleaned out and relubricated. These types of joints lasted forever with regular maintenance. Everything started to go sealed/maintenance free when people got tired of constantly having to have this maintenance done, and demanded cars you could drive 50,000 miles without having to lay a wrench on except for oil changes. That figure today is more like 150,000 miles, and some car companies even warrant their drivetrains for 100k miles or 10 years.

$3,100 is actually insane for a control arm and ball joint. $310 would still be insane for a single side. I think I paid about $300 for a set of both front LCAs and ball joints on my Volvo, and that's a Volvo so it's already expensive compared to, say, a Chevy Cobalt.

None of this or your response is relevant to the fact that all parties involved are being dicks to each other about it, and to the fact that the Mom's Basement Commando crowd is all too willing to go to war over it.

Comment Wow, What a Flame War (Score 1) 271

Let's look at the facts:

The ball joint and control arm failed. It was found that the ball joint had an excessive amount of rust, which means that there was moisture incursion.

The ball joints used on the Tesla are sealed and do not have a grease fitting. They are not meant to be serviceable.

This leads to the logical conclusion that the ball joint was somehow defective, or was made defective at some point (i.e.the seal was broken).

Either moisture got in at the factory, or it got in post-production as if something tore the rubber seal.

In any case, this guy's car broke out of warranty and Tesla begrudgingly offered to pay half of the repair cost, and was a huge cock-gobbler about it.

So, what do we know?

1) The owner of this car is a bit of a dick for expecting warranty service out of warranty on a wearout item

2) Tesla is a bit of a dick for attaching a rather insane legal agreement for what amounts to an at-cost repair of the car

3) A bunch of Internet Commandos are taking sides in an all out war from Mom's Basement over who is "right" or "wrong" in this disagreement between two assholes.

What's the lesson to be learned here? If you don't do regular maintenance on your car, it will break. Duh.

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