Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Comment: Re:What are the emissions? (Score 1) 176

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 1) 176

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) 162

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).

Comment: Re:But aren't corporations people now? (Score 1) 54

by smitty_one_each (#49557857) Attached to: Hillary is still going to be our next president, isn't she?

A bigot is someone who treats someone else with disrespect.

I like that definition, except that anymore, "bigot" is tossed at anyone who commits ThoughtCrime.
While there are quite a few ideas that I just can't fathom, I only get anywhere near nasty (at least, from my perspective) when somebody is attacking my integrity.

If a 6600 used paper tape instead of core memory, it would use up tape at about 30 miles/second. -- Grishman, Assembly Language Programming

Working...