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Comment Re:Solar panels made of sand (Score 1) 645

Article mention it is done clean.

Since you don't have the knowledge to know when you are out of your depth, I will help you along. The article (really more like a brochure) you cited only covers the p side (they call it "positive potential electrical charge") and doesn't cover the n side of the p-n junction. This is a link where NOVA (the science guys) explain how solar cells work. Notice they mention boron and phosphorus. Phosphorus is typically deposited chemically, using CVD (chemical vapor disposition). I am not an expert in the field, but from what I have been told the phosphorus deposition is not clean.

Furthermore, your link doesn't seem to acknowledge that making a reasonably pure silicon wafer for the solar panels requires forming silicon crystals. Cheap methods for doing that involve some nasty processes.

Comment Re:Solar panels made of sand (Score 1) 645

Dopant is explained in the link. You should RTFA.

Since the other guy isn't explaining how you are wrong, I will let you know that silicon transistors need both a p-type and n-type to work. The p-type is typically boron, and the n-type can be phosphorous or arsenic. The compound used to deposit the phosphorous (phosphine gas) is toxic. Arsenic is toxic.

Comment Re:things that seem to help (Score 1) 208

It will be possible to enable NPAPI in Chrome for some time yet. The reason for disabling it by default is to push plugin vendors to port to better approaches that don't leave your system security at the mercy of whatever web page you happen to hit.

According to this they plan to completely disable NPAPI by September 2015. Your workaround buys him about 4 months.

Comment Re:It's the OS, Stupid (Score 1) 252

When it comes to laptops though, you're never going to build one yourself. Apple is the only vendor that actually sells "non-sucking" laptops if you will. HP sells nothing but the cheapest trash for laptops, and just about everyone else has gone out of business. It's incredibly painful to see people have to replace their Taiwan-brand laptop every 2 years, or watch people buy Chromebooks and then return them a month later because the build quality is rock-bottom.

You know there are laptop manufacturers besides HP and Acer, right? Asus, Samsung, and Toshiba have traditionally had good reputations for quality.

Comment Network Coding (Score 1) 129

I remember working on a project where network coding was proposed for micro satellite cluster communications. If I remember correctly, network coding requires that all the nodes in the network have complete knowledge of the state of the network at any given transmission window. This requires transmission of the network state which used something like 7% overhead. The routing of a message from one end of the cluster to the other was difficult. I believe it might have been an np-complete problem. Have they solved the routing issues?

Submission + - Curved Smartphone Screens Aren't a Gimmick (

Boycott BMG writes: Recent discussion on /. about the Samsung and LG curved displays seems to dismiss them as mostly gimmicks, but in an article at Displaymate Dr. Raymond Soniera explains one of the advantages of curved displays: altering the reflections. From the article:

Reflections from a Curved Screen

The concave screen shape on the Galaxy Round cuts down on reflections from the surrounding ambient light two ways: first, by reducing the screen’s 180 degree opening angle, which eliminates reflections from some ambient light coming from the sides. Second, from specular mirror reflections off the concave screen, because the curvature directs reflected ambient light coming from behind away from the viewer’s line of sight. This is very important because you want to minimize the amount of ambient light that is seen reflected off the screen.

Curved Screen Magnification

But the most interesting and important result of the slightly curved Galaxy Round screen is that it magnifies the sizes of all of the objects that it reflects, just like a concave mirror that I mentioned above. As it turns out, that substantially cuts down on the interference of light reflections from ambient light in three ways:

Comment It's all about getting an edge over the competitio (Score 1) 177

I don't know what genre of game the submitter plays, but for fighting games, which I play, input latency can mean the difference between winning and losing. 50ms is 3 frames of lag, which means you need to react 3 frames faster to an overhead or throw. This wouldn't be a problem if everyone used the same equipment, ie PlayStation controller, but if someone had a controller that somehow had lower latency than the regular controllers then everyone who wants to compete would flock to it.

Comment PC slowdown started before Windows 8 (Score 1) 737

The current slowdown in PC sales started well before Windows 8 was released to the public and oems. As someone who holds a little bit of money in AMD stocks, I followed their press releases and they were claiming some slowdown in spring of 2012. If you look at Intel's financials, they were also experiencing an inventory buildup of the latest and greatest ivy bridge CPUs and had to idle more 22nm fabs than usual just to keep their margins and income up.

The fact is that smartphones and tablets have replaced PC notebooks for some tasks like email, calendar/scheduling, and instant messaging. If a certain percentage of the population used a PC primarily for those things then they might delay upgrading their PC and instead get a smartphone.

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