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Comment Re:We should stop using the word renewable (Score 1) 317

Since the concrete production is centralized, it can be sequestered on site, and concrete naturally re-absorbs that carbon over the decades.

The same can be said for fossil fuel powered generators.

since concrete production is a mere 1% or so of total CO2 output by the US

Where does this number come from? All the articles I have seen put that number at 5% of world CO2 emissions.

concrete naturally re-absorbs that carbon over the decades.

How much does it absorb and what consequences?

So, how much calcium dioxide is absorbed in concrete and how long does it take? The answer is that we do not know.

Here is a quote from the article you referenced;

The exact amount of emissions depends greatly on site-specific characteristics. However, current estimates suggest that life-cycle emissions can be over 0.5 pounds of carbon dioxide equivalent per kilowatt-hour [5,6].

To put this into context, estimates of life-cycle global warming emissions for natural gas generated electricity are between 0.6 and 2 pounds of carbon dioxide equivalent per kilowatt-hour and estimates for coal-generated electricity are 1.4 and 3.6 pounds of carbon dioxide equivalent per kilowatt-hour [7].

The 0.5 pounds of carbon dioxide equivalent per kilowatt-hour for hydro is not one tenth that of the 0.6-2 pounds of carbon dioxide equivalent per kilowatt-hour of natural gas.

Comment Re:And now why this can not be done in the USofA (Score 1) 317

The problem is in america, we are still stuck on the idea of Big Energy large grids covering the nation.

There is a reaso behind that; 81% of the US polulation lives in urban/suburban environments. Small communities make up a very small proportion of the US population.

The main reason larger installations are used is called economy of scale. As things get bigger they generally get cheaper. Sure one could run a lot of smaller installations but they would be more expensive and less reliable. Why do we have such a big grid? Reliability. As one plant goes down for immanence there is always another to take up the slack.

Comment Re:We should stop using the word renewable (Score 1) 317

Then there is a case to be made for Hydro electricity not being NCE. First the huge amounts of concrete involved that take lots of emissions and the area that used to be covered with foliage that is now under water and no longer sequestering CO2. Then there is the fact that many dams silt up and have reduced capacity or do not work after a number of decades,

Comment Re:There is no evidence Mars One is not sincere (Score 1) 89

There is no evidence Mars One is not sincere in their attempts.

How about this quote from an article dated March 16 2015.

So, here are the facts as we understand them: Mars One has almost no money. Mars One has no contracts with private aerospace suppliers who are building technology for future deep-space missions. Mars One has no TV production partner. Mars One has no publicly known investment partnerships with major brands. Mars One has no plans for a training facility where its candidates would prepare themselves. Mars One’s candidates have been vetted by a single person, in a 10-minute Skype interview.

What more evidence do you need?

Lets look at the article "refuting" the criticisms.

This is simply a polite request asking them to continue their support of Mars One, as they are now very close to being part of their project.

The subtext being that if they do not donate they will become less " close to being part of their project".

Even though it would be desirable that Mars One corrected every false statement, they cannot be held responsible for how the media interpret and phrase their reports about Mars One.

For statements like this it is the responsability of Mars One to correct such big misconceptions. But they will not as te false information helps them.

Whether they completed the application process to the video stage may be where you begin to see different numbers.

So anyone who clicked on "apply here" is counted in their numbers. That is completely skewing the numbers and they know it.

It would have consumed inordinate amounts of time and money to go through rigorous testing for 660 Round 2 candidates.

It is strange that the couple of million dollars to interview 600 candidates is too high but the 3,000 time that amount to get to Mars is not. They also told round 2 candidates there would be interview and then changed. That is a classic bait and switch.

The primary source of finance is to be an investment firm in the first stages of the mission (leading up to and including the first manned mission).

Where is this investment firm? Why won't you name them? Do they even exist?

The $6 billion in revenue was never stated to be entirely funded from one source.

While this is factually true, it plays on the use of absolutes. If even 0.1% of revenue comes from other sources that statement is true. According to the Mars One site their major sources of income would be Media and IP. Notice they never say just how much they expect to receive from each source. They just show the numbers for the Olympics. Had they shown the number for Big Brother it would be more accurate.

Scam implies profit. If Mars One is a scam, show who you think is getting rich.

The executives running Mars one are getting paid an unknown amount.

Show who is being cheated/harmed when all of the candidates are participating voluntarily and are aware of the low probability of success?

Here are some things and people being harmed;
Other space programs who's funding is being wasted on Mars One.
Future similar projects will always have to deal with the "Mars One" stigma.
Any future large crowd funding will have to deal with the "Mars One" stigma.
Anyone who was ever on the list will be ridiculed for falling for the "Mars One" scam.

Comment Re:Also apparently causes bee colony collapse... (Score 1) 179

I guess you didn't read the summary of the first study;

There were no significant effects from glyphosate observed in brood survival, development, and mean pupal weight. Additionally, there were no biologically significant levels of adult mortality observed in any glyphosate treatment group.

Comment Re:Future? (Score 1) 451

You might have some points, but none of the issues you raise are show-stoppers.

How about these?
Inability to find road edge without pre-scanning and/or a white line
Inability to differentiate between a plastic bag and a rock on the road.
Inability to operate when road covered in snow or ice
Inability to operate at night in heavy rain.

Other companies' cars could as far back as 2013 detect those things in real-time on their first exposure to the road.

Detection is only part of the issue. Differentiation is the issue. Currently all the Google car can detect is a blob of pixels. That blob could be a mailbox, a child, a policeman, a deer, an elderly person, etc. A driver reacts to these items differently. Since the car can not differentiate between them it reacts the same. One of the reasons the roads have to be pree-scanned is so the Google car can differentiate between stationary objects and people who just happen to be standing still. By the way, could you supply references to these other companies' cars that could detect those things?

That will only get better, making your concerns less valid as time goes on.

As I said it is a matter of time. The crux being how much time.

it's just round the corner.

How long have flying cars and fusion power been "just around the corner"?

Comment Re:Space for solar hasn't been much of a concern (Score 1) 437

Pumped storage:
Each pumped storage installation has a limit on the amount of electricity it can draw or supply and a limit on the total amount of electricity it can supply before the reservoirs run dry. What happens of there is 200MW of extra power generated and only 100MW of pumped storage available? What if there is 200MW of demand and only 100MW of pumped storage available. What if there is any demand and the pumped storage high reservoirs are dry? Capacity has a big impact on the

Do you finally agree that you only have use for significant amount of storage when un dispatchable production reaches (or exceeds) the 80% to 100% range, or not?

I would say 70%-100% depending on the ramping ability of local conventional producers (natural gas ramps much faster than coal) would cause a problem. Considering this article is talking about producing 500% of demand do you see how their "solution" could be a problem?

Comment Re:Night (Score 1) 437

Because neither you nor other /. where talking about the 500%

Read the third post in this thread

The article touts producing 500% of daytime need. See the problem with the "solution"?

For a grid to work you don't need significant more storage than any 'grid in good shape' already has.

Ever seen the duck graph. Basically it shows how the drop off in solar near sunset can cause a requirement for very rapid switching to conventional power. Conventional generators have a limit on how fast they can ramp up. If the conventional plants can not ramp fast enough the grid collapses. Storage can extend this ramping period so that it is not so steep and conventional plants can handle it.

Comment Re:It is time to get up one way or the other (Score 1) 1089

Or the idiotic idea that car companies may not have their own shops

That law came about because car makers were selling through dealers until the dealers established a market in an area. Then the car companies would open a dealership in the same area, undercut the dealer prices and drive them out of business. Tesla does not meet that model because they do not have dealers to undercut. That does not mean that the original law was stupid.

Comment Re:Not sure how to feel about this (Score 1) 366

Uber drivers *can* pickup street fares, but you still have to request and pay through the app.

You too may need to do some research.

“Our technology platform is used to connect riders and drivers through our lead generation software. Any solicitation independent from the app is strictly prohibited. We communicate this to all driver partners,” said Uber spokesman Taylor Bennett.

Moreover, Uber’s insurance policy applies only to rides that are digitally booked, raising liability and public safety issues.

When a ride is requested by a person picked up before the request is put in it may not go to the same driver. Another car may be dispatched to that location.

There is also no non-compete clause (because they are contractors) so they can work for Lyft and Sidecar at the same time.

The US Courts are hearing cases on whether drivers are employees or contractors.

I guess I was wrong about not working for multiple companies. Though that may change with the rulings about being an employee.

By the way, if you investigated so thoroughly then why no references?

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