Do you want a nuclear plant in your community? It doesn't matter how safe it is, nobody wants huge industrial installation in their backyard.
The distributed nature of PV solar has a number of other benefits as well - it's much more resilient in case of a natural disaster, it's not a target for terror and cyber attacks, etc, etc.
Finally, nuclear is not as cheap as you think. The upfront costs are enormous and cost and schedule overruns are the norm, in other words, it's very risky investment that requires government incentives and guarantees.
We might be at a point where it won't matter who is the WH.
The last 8 years got the ball rolling, the technology has matured and has entered the mainstream, so it's almost to at a point where there is no stopping it.
I think it's much more than that. There are videos on youtube showing teslas driving themselves, making turns, stopping at stop signs, etc., etc.
Not all of those features have been enabled for the general public just yet, they are still fine tuning the system.
What the rule should be:
"Visas are given for a period of 3 to 5 years, the company pays $50,000 upfront and the employee can work anywhere they want for the duration of the visa"
That way companies will not be able to underpay H1B visa workers (because they'll move to a different company) and the high upfront cost will be an incentive to hire domestic workers first. Paying all that money upfront and a high salary later only makes sense for top talent, which is what H1B is all about.
The paper does not prove that the EM drive works, it only proves that they were not able to find an experimental error that would account for the observed phenomenon.
To prove that EM works, you would have to devise the theoretical framework explaining why it works and be able to make testable predictions based on that framework. The more of your predictions are proven correct, the better your hypothesis looks.
I'm keeping an open mind about this but until there is actual evidence, Occam's razor should be applied and we should assume that it's all experimental error.
That being said, can someone knowledgable comment on possible interaction with dark matter?
Sorry, thought I'll link to the equation with the proper masses. First I used M1 = M2 = 1.90E27, then I tried M1=9.0E27 M2=1.90E27 and in both cases the acceleration was E-11.
That was my reaction as well. The article states that planet nine is "about 10 times the size of Earth" - which I took to mean it has a diameter of 79,000 miles. For reference, Jupiter's diameter is ~ 86,000 miles.
The article also states that the planet has an "orbit that is about 20 times farther from the Sun on average than Neptune's". That translate to around 600 AU.
Assuming planet nine has Jupiter's mass: http://astro.unl.edu/classacti...
Assuming Jupite's size, but Earth density (roughly 5x greater) : http://astro.unl.edu/classacti...
To me that doesn't make sense.
I think you went full stupid. The article states he is well enough to run for president, despite smoking 2 packs a day for 25 years and surviving 4 melanoma. By the way, McCain would have been the oldest US President EVER at 72 years, so given his history, the concern was not surprising.
Compared to him, Hillary is much healthier, not to mention she'll be "only" 69 when she becomes president.
There has been some indications suggesting that might be the case, but I don't think it was proven as the cause. The Chinese and the German did manage to rule out some other potential source though, such as thermal expansion etc. It will be interesting to see what EagleWorks concludes in their paper.
There are 2 major problems with emDrive
1. It appears to violate known physics laws, namely conservation of momentum.
2. There hasn't be a coherent theory that explains why an EmDrive would work. There have been some ideas but as far as I understand it, nothing that's cohesive enough to yield a testable prediction.
The experiment has been replicated a number of times and has given consistent results thus suggesting there is some sort of phenomenon going on. I think we can rule out the most obvious experimental errors, but you can't unequivocally prove something if you have no testable hypothesis.
Satellites are expensive, launches are expensive - you have to prove this idea in the lab first, then figure out how to scale it to usable technology.
Even this technology works, we are talking thrust in the micro newtons which is nowhere near enough to do anything useful in a gravity well. Still a huge game changer in deep space though.
They happen because someone is pushing for them. If everyone just sits on their hands waiting for things to happen we'll probably still have acid rain and rivers on fire.
Sure but the natural cycle takes tens of thousands of years, while the human made one takes mere decades. The change in temperature due to the natural cycle is minute.
Actually autopilot works on city streets as well. It reads speed limit signs, it follows the car in front of it, it stays in lane... The only thing I can think off that it does not do is to obey traffic lights and stop signs.
LLCD and OPALS have both demonstrated the feasibility of laser comm. Weather is somewhat of a problem but it can be addressed by implementing error correction code. I'm glad to see private industry showing interest in this very promising technology. OPALS was able to reach speeds of 50Mbs which is a good improvement over existing satellite internet speeds.
Unfortunately the article does not make it clear under what conditions was the 2Gbs speed achieve or how are they planning to use it indoors, I would imagine that would require line of sight.
For 2016 they are hoping to do 16 launches and that's considered overly optimistic, SpaceX has been doing around 10 launches per year. To get to 1 launch per week (52 per year) is a huge step forward and will not come for years.
Even if they do get to 1 launch per week, with 3 launch sites that's still 17 launches per site per year. Of those only LEO missions can return to the launch location, launches to GEO have to land downrage on a drone ship.
All in all, the good people of Texas have nothing to worry about.
Area 51 is officially classified, government officials are not supposed to even acknowledge it exists. Same with the drone strikes in foreign countries. Yet everyone knows about them. If the classified info in those emails is something like that then it's not a big deal.
We are talking about 8 TS and 36 secret email chains, which sounds a lot, but it could be fairly benign stuff.
It's not "free rent". You are renting them your rooftop space in exchange for a discount on your electric rate.
There is no opportunity cost here, I doubt you can rent your roof to someone else (other than a solar producer).
Theoretically it could work, but we are nowhere near being able to set up a large manufacturing facilities on other planets. Just the launch costs will add up to hundreds of billions. On top of the surface of Venus is gruelling - the temperature reaches over 800F and the atmosphere is made out of CO2 and sulfuric acid.
Slashdot Mirror
Do you want a nuclear plant in your community? It doesn't matter how safe it is, nobody wants huge industrial installation in their backyard. The distributed nature of PV solar has a number of other benefits as well - it's much more resilient in case of a natural disaster, it's not a target for terror and cyber attacks, etc, etc. Finally, nuclear is not as cheap as you think. The upfront costs are enormous and cost and schedule overruns are the norm, in other words, it's very risky investment that requires government incentives and guarantees.
We might be at a point where it won't matter who is the WH. The last 8 years got the ball rolling, the technology has matured and has entered the mainstream, so it's almost to at a point where there is no stopping it.
I care! It was me who brought those jobs back!! Vote for me!
Trump is taking credit, but he had nothing to do with it, the investment in question has been in the works for a long time.
I think it's much more than that. There are videos on youtube showing teslas driving themselves, making turns, stopping at stop signs, etc., etc. Not all of those features have been enabled for the general public just yet, they are still fine tuning the system.
Good LORD, what kind of people are you talking to? Everyone I know can't wait to get a vehicle with autopilot.
What the rule should be: "Visas are given for a period of 3 to 5 years, the company pays $50,000 upfront and the employee can work anywhere they want for the duration of the visa" That way companies will not be able to underpay H1B visa workers (because they'll move to a different company) and the high upfront cost will be an incentive to hire domestic workers first. Paying all that money upfront and a high salary later only makes sense for top talent, which is what H1B is all about.
The paper does not prove that the EM drive works, it only proves that they were not able to find an experimental error that would account for the observed phenomenon. To prove that EM works, you would have to devise the theoretical framework explaining why it works and be able to make testable predictions based on that framework. The more of your predictions are proven correct, the better your hypothesis looks. I'm keeping an open mind about this but until there is actual evidence, Occam's razor should be applied and we should assume that it's all experimental error. That being said, can someone knowledgable comment on possible interaction with dark matter?
Sorry, thought I'll link to the equation with the proper masses. First I used M1 = M2 = 1.90E27, then I tried M1=9.0E27 M2=1.90E27 and in both cases the acceleration was E-11.
That was my reaction as well. The article states that planet nine is "about 10 times the size of Earth" - which I took to mean it has a diameter of 79,000 miles. For reference, Jupiter's diameter is ~ 86,000 miles. The article also states that the planet has an "orbit that is about 20 times farther from the Sun on average than Neptune's". That translate to around 600 AU. Assuming planet nine has Jupiter's mass: http://astro.unl.edu/classacti... Assuming Jupite's size, but Earth density (roughly 5x greater) : http://astro.unl.edu/classacti... To me that doesn't make sense.
ESA has always used metric and NASA switched back in the 90s.
I think you went full stupid. The article states he is well enough to run for president, despite smoking 2 packs a day for 25 years and surviving 4 melanoma. By the way, McCain would have been the oldest US President EVER at 72 years, so given his history, the concern was not surprising. Compared to him, Hillary is much healthier, not to mention she'll be "only" 69 when she becomes president.
There has been some indications suggesting that might be the case, but I don't think it was proven as the cause. The Chinese and the German did manage to rule out some other potential source though, such as thermal expansion etc. It will be interesting to see what EagleWorks concludes in their paper.
There are 2 major problems with emDrive 1. It appears to violate known physics laws, namely conservation of momentum. 2. There hasn't be a coherent theory that explains why an EmDrive would work. There have been some ideas but as far as I understand it, nothing that's cohesive enough to yield a testable prediction. The experiment has been replicated a number of times and has given consistent results thus suggesting there is some sort of phenomenon going on. I think we can rule out the most obvious experimental errors, but you can't unequivocally prove something if you have no testable hypothesis. Satellites are expensive, launches are expensive - you have to prove this idea in the lab first, then figure out how to scale it to usable technology.
Even this technology works, we are talking thrust in the micro newtons which is nowhere near enough to do anything useful in a gravity well. Still a huge game changer in deep space though.
They happen because someone is pushing for them. If everyone just sits on their hands waiting for things to happen we'll probably still have acid rain and rivers on fire.
Sure but the natural cycle takes tens of thousands of years, while the human made one takes mere decades. The change in temperature due to the natural cycle is minute.
On the contrary, it shows even closer connection between climate change and human activity.
And made right here in 'Merica! By John Deere!
Actually autopilot works on city streets as well. It reads speed limit signs, it follows the car in front of it, it stays in lane... The only thing I can think off that it does not do is to obey traffic lights and stop signs.
LLCD and OPALS have both demonstrated the feasibility of laser comm. Weather is somewhat of a problem but it can be addressed by implementing error correction code. I'm glad to see private industry showing interest in this very promising technology. OPALS was able to reach speeds of 50Mbs which is a good improvement over existing satellite internet speeds. Unfortunately the article does not make it clear under what conditions was the 2Gbs speed achieve or how are they planning to use it indoors, I would imagine that would require line of sight.
For 2016 they are hoping to do 16 launches and that's considered overly optimistic, SpaceX has been doing around 10 launches per year. To get to 1 launch per week (52 per year) is a huge step forward and will not come for years. Even if they do get to 1 launch per week, with 3 launch sites that's still 17 launches per site per year. Of those only LEO missions can return to the launch location, launches to GEO have to land downrage on a drone ship. All in all, the good people of Texas have nothing to worry about.
Area 51 is officially classified, government officials are not supposed to even acknowledge it exists. Same with the drone strikes in foreign countries. Yet everyone knows about them. If the classified info in those emails is something like that then it's not a big deal. We are talking about 8 TS and 36 secret email chains, which sounds a lot, but it could be fairly benign stuff.
It's not "free rent". You are renting them your rooftop space in exchange for a discount on your electric rate. There is no opportunity cost here, I doubt you can rent your roof to someone else (other than a solar producer).
Theoretically it could work, but we are nowhere near being able to set up a large manufacturing facilities on other planets. Just the launch costs will add up to hundreds of billions. On top of the surface of Venus is gruelling - the temperature reaches over 800F and the atmosphere is made out of CO2 and sulfuric acid.