Comment Re:What is the total energy balance? (Score 1) 186
Comment Re:Pie in the Sky (still) (Score 1) 239
Given public opinion here and the necessity of pandering to both public opinion and the short-term goals of those who would finance this research, I don't think $100 billion US over the next 5 or 10 years is going to be spent on improving fission. I too think fission is actually the answer, but I think the work to make it mainstream, reliable, and efficient (in terms of waste product) needed to start 40 years ago as an industry. I don't see it happening today, though - people look to renewable as a way to get something that looks free or low-cost.
Given the choice of wasting money on a another pie-in-the-sky "free power for everyone" power generation method, or in figuring out ways of storing and distributing intermittent power from less-than-optimal methods, I think the latter is the best we can hope for.
Comment Pie in the Sky (still) (Score 0) 239
Fusion as an everyday power source sidesteps a lot of issues that need to be overcome, not just the fact that no existing reactor produces a net gain. I think many current projects are looking into isotopes as fuel sources, which might prove viability but isn't exactly going to make limitless power for "virtuall free". Last I checked, deuterium and/or tritium weren't exactly just lying about in massive ready-to-use quantities. Then there's neutron emission/poisoning (I don't think aneutronic fusion is a property of using isotope fuels but I could be wrong), containment, cooling, etc. and I know I'm barely touching the surface.
I read a research paper (probably arXiv so YMMV) that I can't find at the moment where the researchers were convinced that fusion was a product of quantum tunneling, and not of massive amounts of pressure or energy being dumped in. I'm paraphrasing and also not a scientist so I might be mis-remembering or just plain wrong but the gist was that if, even with all of the energetic hydrogen in the sun's core, fusion only took place because of tunneling then hydrogen (non-isotopic) fusion as a real power source is fucked as a power source.
Solar and wind have definitely benefitted from continual investment and research over the past 20 years, and I think fission would as well (I can't think of a way that governing bodies can get together to figure out how to allow the secure development of modern breeders, but they would solve all but the actinide hole for nuclear waste).
If the fucktons of money and thought being spent on fusion were directed to solar, wind, and other renewables, as well as fission, the world as a whole would be better positioned to hold the line on climate change.
Of course, as long as people with clout continue to have a 10-20 year sense of responsibility, that's not going to happen, and 2100 is looking to be a shit year for humanity.
Comment I could use one of these.... (Score 1) 31
Comment Re:uh (Score 1) 94
Comment Let 'em leave - we'll be better for it. (Score 2) 191
Just tell them we'll all be following along on the next ark while they sail off like the Golgafrincham hairdressers, telephone sanitizers, and middle managers.
Comment Re:Applicable questions for real users (Score 1) 99
Jesus, I feel like I'm agreeing with RMS. Not a position I ever thought I'd be in.
Submission + - SPAM: BlockFi Faces SEC Scrutiny Over High-Yield Crypto Accounts
States including New Jersey and Texas have already taken action against BlockFi, questioning whether it’s marketing illicit financial products that lack bedrock consumer protections. BlockFi and other firms are able to pay high interest rates because they can charge institutional investors that want access to coins even more. The market is one of the hottest corners of crypto, with companies saying they’ve collected more than $40 billion in deposits. [...] A key concern is that unlike bank deposits, the crypto accounts aren’t insured by the federal government. If a firm goes bust, customers could lose their funds.
Link to Original Source
Submission + - SPAM: South Korea Is Giving Millions of Photos to Facial Recognition Researchers
The revelation, first reported in the South Korean newspaper The Hankyoreh, came to light after National Assembly member Park Joo-min requested and received documents from the Ministry of Justice related to a April 2019 project titled Artificial Intelligence and Tracking System Construction Project. The documents show private companies secretly used biometric data to research and develop an advanced immigration screening system that would utilize artificial intelligence to automatically identify airport users’ identities through CCTV surveillance cameras and detect dangerous situations in real time. Shortly after the discovery, civil liberty groups announced plans to represent both foreign and domestic victims in a lawsuit.
“We, the NGOs, urge the government to immediately stop the establishment of a biometric monitoring system that is not only illegal but also significantly violates international human rights norms,” wrote Advocates for Public Interest Law, MINBYUN — Lawyers for a Democratic Society, the Institute for Digital Rights, the Joint Committee with Migrants in Korea, and the Korean Progressive Network Jinbonet, in a press release that was translated and provided to Motherboard. Attorneys claim the project directly violates South Korea’s Personal Information Protection Act, a law that strictly limits the processing of personal information in the country. Still, the Ministry has yet to announce plans to halt the program, which was scheduled to be completed in 2022.
Link to Original Source
Submission + - Oumuamua May Not Be A Frozen Nitrogen Chunk After All (livescience.com) 1
"According to Siraj and his co-author, Harvard astrophysicist Avi Loeb, Jackson and Desch's conclusion that 'Oumuamua is a nitrogen iceberg is flawed because there isn't enough nitrogen in the universe to make an object like 'Oumuamua, which is somewhere between 1,300 and 2,600 feet (400 and 800 meters) long and between 115 and 548 feet (35 and 167 m) wide. Pure nitrogen is rare, Siraj said, and has been found only on Pluto, where it makes up about 0.5% of the total mass. Even if all of the nitrogen ice in the universe was scraped off every Pluto-like planet that's predicted to exist, there still wouldn't be enough nitrogen to make 'Oumuamua."
Although Oumuamua probably isn't some probe looking for humpbacked whales, it does continue to deliver plenty of intrigue — and controversy — for those astronomy buffs out there.
Submission + - Bill Gates' TerraPower Will Set Up a $4 Billion Nuclear Plant in Wyoming (interestingengineering.com) 1
Last year, the Department of Energy (DOE) had awarded TerraPower a grant of $80 million to demonstrate its technology. The advanced nuclear reactor that is being developed by the company in association with General Electric-Hitachi, uses a sodium-cooled fast reactor that works with a molten salt-based energy storage system. Earlier in June, the company had decided to set up its demonstration plant in Wyoming and has recently sealed the decision by selecting the site of a coal-fired power plant that is scheduled for a shut down by 2025, the press release said.
The demonstration plant where the company plans to set up a 345 MW reactor will be used to validate the design, construction, and operation of TerraPower's technology. Natrium technology uses uranium enriched to up to 20 percent, far higher than what is used by other nuclear reactors. However, nuclear energy supporters say that the technology creates lesser nuclear waste, Reuters reported.
The energy storage system to be used in the plant is also designed to work with renewable sources of energy. TerraPower plans to utilize this capability and boost its output to up to 500 MW, enough to power 400,000 homes, the company said.