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Comment Ungrounded Lightning (Rod) to Stop Using DietPepsi (Score 1) 630

Aspartame has problems for some people (like my wife and brother-in-law) and not for others (like me).

Sucralose has problems for some people (like me) and not for others (like my wife).

Seems to me the thing for Pepsi to do is to bring out another formula - with a different name - using Sucralose, put them in the stores side-by-side (they get a LOT of shelf space to play with), and let the customers decide.

Changing the formula of an existing brand strikes me as a stupid move. I suspect Pepsi is about to have it's "New Coke!" moment...

Comment problems with making stuff invisible to drivers (Score 1) 125

The bit you're apparently not grasping is something called a spatial light modulator. ... Couple it with a microwave radar or ultrasound sonar, and you can track individual raindrops and then cast shadows on them.

Then construct an object that appears to the system to be raindrops and you can put an invisible obstacle in the road. B-b

Comment Don't forget legacy BROWSERS. (Score 4, Insightful) 218

A site may wish to continue using JQuery because some of its clients are using older browsers that don't support the new features that allegedly obsolete JQuery code.

Drop the JQuery code and you drop those customers. Develop future code without it and the pages with the new features won't perform with people using legacy browsers. And so on.

I've seen similar things happen over several generations of web technology. Use care, grasshopper!

Comment Re:ESPN delenda est (Score 3, Interesting) 329

Most of the shopping channels get on your cable system though having a local TV transmitter. Cable companies are "required to carry" any and all local over the air stations. It was the "deal" that was made to allow cable systems to exist, many decades ago. So you are going to get those no matter what.

[Citation needed]

I mean, that's true in theory, but in practice, since the [OTA] digital switchover, the cable company where I live has been getting away with downgrading stuff that would be 1080i with an antenna to 480p (unless you pay an extra bribe for them to leave it HD), and omitting broadcast subchannels entirely.

Comment Re:What are the emissions? (Score 1) 486

To make the fuel, the following reaction occurs:

H2O + CO2 + energy -> synthetic diesel

Then, when burning the fuel, this reaction occurs:

synthetic diesel + air (O2, N2, etc.) -> energy + CO2 + H2O + normal diesel pollutants (soot, CO, NOx, etc.)

The advantages over regular diesel are that the carbon started in the atmosphere instead of the ground, so putting it in the atmosphere isn't a problem, and that (unlike dino-diesel) this fuel isn't contaminated with sulfur, so there isn't any SO2 produced. In other words, in terms of emissions it should be cleaner than regular diesel and tied with biodiesel.

The advantage over electric cars is that it works with our existing vehicle fleet and fueling infrastructure, and that it doesn't take an inordinately long time to refuel with it.

Comment Re:Curse you, Entropy! (Score 2) 486

All well and good, but doesn't exactly solve the problem of greenhouse gas emissions.

Sure it does. (Not that one small pilot project solves the problem, I mean if the tech is scaled up.) It's carbon-neutral just like biofuels are, it does not add any net CO2 to the atmosphere: it only puts in what it took out to make the fuel in the first place. (I suppose your could even use it to remove CO2, to get us back to 350ppm via carbon sequestration -- make up a bunch of "blue crude" and then stick it underground, running an oil well in reverse.) The problem with greenhouse gas emissions is fossil carbon, which puts in carbon that was captured millions of years ago.

Comment Re:Curse you, Entropy! (Score 1) 486

All well and good, but doesn't exactly solve the problem of greenhouse gas emissions.

Yes it does. The problem with CO2 as a greenhouse gas is that we're taking carbon that was part of the long-term carbon cycle (i.e., fossil fuels) and making it part of the short-term carbon cycle. In contrast, this process takes carbon that was already part of the short-term carbon cycle and keeping it as part of the short-term carbon cycle. It's "carbon-neutral."

Using synthetic fuels like this (as well as biofuels) won't stop the global warming that's already happening (for that you need to actually sequester the carbon -- i.e., take carbon that's part of the short-term cycle and make it part of the long-term cycle), but it also won't add to the problem.

Comment Re:You're not willing to pay (Score 3, Informative) 285

People say the average worker isn't making as much as they used to, but I think that people are just buying a lot more stuff than they used to.

That's a statement of median salary vs. GDP, which is only tangentially related to spending (i.e., only in the sense that consumer spending affects GDP). And wages and salaries really have been falling relative to GDP over the past 50 years.

Cellular phones, cable TV, Internet, and computers. None of this stuff existed 50 years ago. Our budgets may be stretched, but a lot of it is because of the things we have decided are necessary.

On the flip side, there are a lot of things that are cheaper today than they were 50 years ago, such as clothing and food (according to this article, those two expenses went from about 42% of the average household budget in 1950 to about 17% in 2003).

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