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Group: Tech News ... Interesting technology [web-public] | ||
GrahamC: 22-Apr-2011 | Anyway the post mortem will be interesting .. and hopefully Amazon will have a more durable product as a result. | |
onetom: 23-Apr-2011 | Last year at the startup weekend in Singapore I was showing Rebol to a couple of Amazon guys. They were amazed... I was proposing I would create a Rebol commandline tool set for them if they could get some donation, but nothing really happened... yet :) | |
Kaj: 23-Apr-2011 | By the way, S3Sync is abandoned because the guy was fed up with the Ruby language implementation. He wants to do a new version in Java, which is useless to me | |
Henrik: 23-Apr-2011 | maybe it's a money issue? | |
BrianH: 23-Apr-2011 | Kaj, the Ruby language itself is pretty clean. The *implementations* of the language mostly suck, and there are some problems with the underlying semantics that made some of the implementation problems inevitable. The language was designed to look pretty. However, they are working on making the implementation better - that's why there are so many implementations - and there have been some efforts to clean up the semantics too. It's slow going though, and they are slowed down in their efforts by having most of the implementations not run on Windows very well or at all, which cuts down on the developer pool drastically. It is not uncommon to have projects written in Ruby be converted to other languages when they get useful. Java is a pretty common target for these conversions - this is one of the reasons JRuby is relatively popular. | |
BrianH: 23-Apr-2011 | I have friends who program in Ruby for a living, and every one of them has independently asked that I redo the language from scratch, similar to Red or REBOL. | |
onetom: 23-Apr-2011 | btw, im seeing windows guys switching to linux or mac because of ruby and it's higer and higer in demand, so the developer pool is expanding pretty well (which i can tell u as a core member of the singapore ruby brigade ;) | |
BrianH: 23-Apr-2011 | That happens a lot. What happens more is developers not being able to switch away from Windows for other reasons, and so using a different language instead. That is why Ruby gets used more for server/web stuff than for client-side stuff. | |
BrianH: 23-Apr-2011 | Web programming is still a very small percentage of programming work (5% as of the end of last year). | |
BrianH: 23-Apr-2011 | It was 4 months or so ago when I read them, so I don't have the link. I was looking at job stats at the time to see what to learn next. I wouldn't be surprised if the trend was to more web programming in the future, because a lot of developers are looking for excuses to use Linux on the servers, and ways to support the OSX laptops they do their audio stuff on, while the businesses they support are all running Windows on the client. I've seen a lot of consultants try to push web-based stuff because they hate Windows, but it doesn't work very well a lot of the time. Still, developer pressure is cumulative, so eventual change seems likely. | |
Kaj: 23-Apr-2011 | Was it a trustworthy source? | |
Kaj: 23-Apr-2011 | If it's true, it would hardly be a reason for MS to abandon their desktop toolkits and push HTML5 | |
BrianH: 23-Apr-2011 | MS is pushing HTML5 in order to convince developers to not abandon IE. Programmers who have to do business work have to run their stuff on web browsers with no HTML5 support. Despite what MS says in the HTML5 presentations, they aren't abandoning desktop development tools or Silverlight any time soon. The HTML5 guys are in a different, competing department, so they have no say over whether the desktop development tools go away. Only the developers who are outside of MS and use their tools have any say. | |
BrianH: 23-Apr-2011 | For that matter, MS's Windows 8 plans are going to depend a great deal on improvements to their desktop/tablet/phone development tools, since it will have to support 3 platforms: x86, x64 and ARM. The .NET tools are critical to that, the same way that LLVM is critical to Apple. | |
Kaj: 23-Apr-2011 | I'll probably review yours again someday, but at the moment REBOL doesn't look like a good place for investments | |
GrahamC: 23-Apr-2011 | I have a copy of them .. but I was never allowed to release them even though they are said to be open source | |
GrahamC: 23-Apr-2011 | And Chris turned my version into a protocol | |
Kaj: 23-Apr-2011 | That's a showstopper, too. I need to upload CD images | |
Kaj: 23-Apr-2011 | As this week's events show, EC2 is not a good thing to become dependent on, either | |
GrahamC: 23-Apr-2011 | Traditionally Rebol file transfers were done by reading the file into memory first which is a pain for large files. | |
GrahamC: 23-Apr-2011 | Having said that, I think for my R3 ftp implementation, I stream the file off the file system instead of reading into a variable first | |
BrianH: 23-Apr-2011 | It's a 32-bit addressing issue. | |
GrahamC: 23-Apr-2011 | Actually Brian, if you try to load a 650Mb file into R2 .. you'll crash as far as I recall | |
GrahamC: 23-Apr-2011 | but they're only a few Mbs or less in size | |
Kaj: 23-Apr-2011 | If you port that to Syllable Desktop and downsize it one or two orders of magnitudes, I'm willing to have a look :-) | |
GrahamC: 23-Apr-2011 | Is there a Syllable AMI ? | |
Kaj: 23-Apr-2011 | As I said, I haven't started with EC2 yet. I'd have to port Syllable Server to EC2. Syllable Desktop is impossible to run on EC2, unless you'd run it in a full emulator | |
GrahamC: 23-Apr-2011 | And I pre-paid for a 3 year Windows instance a month or so ago :( | |
Kaj: 23-Apr-2011 | You could run remote desktops on a server, so I guess some people are also doing that on EC2 | |
GrahamC: 23-Apr-2011 | All this happening a few days after that Chinese hacker group boasting that they could bring down any country's infrastructure :( | |
Kaj: 23-Apr-2011 | Probably the smallest. They carry a way lighter load | |
Kaj: 23-Apr-2011 | Although now that I've said that, I'm sure the hot weather will soon blow out a hard disk... | |
GrahamC: 23-Apr-2011 | I think I should setup a secondary fall back server in the Singapore availability zone. Hopefully what happens in the USA does not impact other regions. | |
Kaj: 23-Apr-2011 | Just a few farms | |
Kaj: 23-Apr-2011 | When a hunger winter comes, yes | |
GrahamC: 23-Apr-2011 | And here's a picture of my turbine http://www.compkarori.com/images/air403.gif | |
GrahamC: 23-Apr-2011 | The threat of a $200,000 fine was a little too oppressive for me | |
GrahamC: 23-Apr-2011 | here's a picture from the roof .... http://www.compkarori.com/images/karori403.jpg | |
Kaj: 23-Apr-2011 | I've been riding my bicycle under those really big ones in a big storm. Pretty impressive | |
GrahamC: 23-Apr-2011 | I was going to short it during the night which basically puts a break on the whole thing. And leave it going during the day | |
GrahamC: 23-Apr-2011 | Even with the turbine shorted .. it still spun quite fast in a strong wind | |
GrahamC: 23-Apr-2011 | True ... there's a lot of research in this area | |
GrahamC: 23-Apr-2011 | A bit like a sun flower I guess | |
GrahamC: 23-Apr-2011 | or a tulip? | |
Geomol: 25-Apr-2011 | It could be interesting to compare prices of electricity around the world. Also the prices, Reichart and Max give, are they total prices incl. all vat, tax and distribution? In Denmark, where I live, we pay around DKK 2.00 in total per kWh, that's USD 0.39 per kWh. 1/5 of that is vat (danish: "moms"), almost half is a special tax on electricity, and the rest is split in actual price of electricity and its distribution. See pie diagram here: http://www.dongenergy.dk/privat/El/omelprisen/Pages/om elprisen.aspx In Denmark 25% of our electricity comes from wind mills, many located in the ocean. If some of you pay 0.075/kWh, that seems very cheap. | |
Henrik: 25-Apr-2011 | Geomol, you have perhaps noticed, there is a discussion of the merit of the wind mills, due to the enormous expense on building and maintaining them. | |
Henrik: 25-Apr-2011 | The brilliance of the electricity tax, is that it doesn't make economical sense to switch to solar or wind, since it's not a tax on the source, but on electricity in general. The best way is probably to have your own solar installation and use the government's program for allowing you to sell electricity back to the power plant by having it hooked up to the grid instead of using it to supply your own house. Each user is allowed up to a 6 kW installation. | |
Geomol: 25-Apr-2011 | I just noticed, we also have to pay subscriptions, DKK 12.50/month for el, DKK 67.50/month network (electricity network, I guess). That USD 15.57 per month in subscriptions. So to get full price, I should figure out, how many kWh, I use for a whole year, times price per kWh, add subscriptions and divide by kWh, then I have full price per kWh. | |
Henrik: 25-Apr-2011 | Geomol, I always have thought that in 30 years, when our tax rate is 80-90%, we are the ones who will need food aid from Africa, once they launch a resource based economy. | |
Maxim: 25-Apr-2011 | the cost of windmills energy depends on the quality of the winds. they can be amongst the most efficient power sources because the very low initial cost and upgrade costs. ultimately, when we'll know how to harvest the sun properly, probably through chemical photosyntesis(nature is rarely wrong) every other energy source will seem "dum", a part from fusion when we find a cost-effective way to do it. | |
Kaj: 25-Apr-2011 | First you'll have to find a way to do fusion in the first place - apart from bombs | |
Gabriele: 26-Apr-2011 | Max, cost can only be a concern if you have enough of the energy. If not, then no matter how cost effective it can be, you also need to add other sources... | |
AdrianS: 26-Apr-2011 | The biggest news, and most promising, seems to be around the Rossi process. It's amazing how something of this magnitude is not covered by popular press. Not surprising, because of the bad rap the field got at its start, but the lack of coverage says a lot about how the scientific establishment operates. | |
AdrianS: 26-Apr-2011 | actually there should be a bunch more 9's after the decimal point | |
Henrik: 26-Apr-2011 | actually, it's close to 20 years old, but it was not revealed until around 2005. it has gone silent again a year ago. | |
Henrik: 26-Apr-2011 | polywell is kinetic fusion, not hot fusion, so it's a different process. | |
AdrianS: 26-Apr-2011 | the technology needed is not much above what you'd see in a chemistry lab | |
Henrik: 26-Apr-2011 | They funded the early research too from 1992 to 2005, but funding ran out in 2005 and a lack of results could not get the research funding renewed. It's a near miracle that the research started again. this happened, because the main researcher, Robert Bussard was going through test data from their last burnt out prototype and discovered interesting numbers that suggested that the principle actually works. Still no funding, and Bussard went public to get funding, even setting up a paypal account. Bussard then died in 2007 and other researchers took over the funding issue. They got the US Navy to start funding it again, built another prototype to verify the results and they turned out good. After this a plan was posted for more prototypes and then they went silent. | |
Henrik: 26-Apr-2011 | What I find amusing is that Robert Bussard worked on ITER early on, saw that it wouldn't work and left and basically worked in a garage for 10 years with speaker magnets for pocket money, while ITER received billions for barely any progress. | |
Henrik: 26-Apr-2011 | Polywell is advantagous over ITER in that the design is much, much simpler. The output is electricity and helium, so no conversion is needed to put it on a grid. There are still arguments over whether neutron radiation will be produced, when used with the pb11 fuel, but if not, then none will be produced, as there will be with ITER. The disadvantage is the requirement for size, which probably is going to be more than 3x3x3 meters for a small-scale system, but it's still small enough to put in a submarine or a ship. The other disadvantage is that you probably will need 1-10 MW plant in front of it to start it, but once the process starts, it runs on its own. Another point is safety: If you add too much or too little fuel, the process simply stops. | |
AdrianS: 26-Apr-2011 | Sounds pretty interesting, but when will we see commercial deployment? Rossi is planning for October, this year, for his process. A Greek company is investing 200 million euros in the plant. | |
Henrik: 26-Apr-2011 | We won't know, as the state of development is still in understanding the physics and there is no public device that has worked for longer than a few milliseconds. After that, there are still engineering issues to overcome to build a production device. The researchers last said that the first real device could be in operation within 5-10 years, which still is 50 years before ITER. As far as I can tell, LENR is further ahead. But from what I can see, they are not in direct competition with eachother and there is a need for real table-top fusion. | |
AdrianS: 26-Apr-2011 | I'm not sure what the maximum output from the Rossi process can be, but from what I've been reading it can actually produce much higher output than what is planned for the initial plant. For now, it is being limited it in order to have it operate in a safe range. The demonstration done in January showed about 12-15kW. It seems it can be self sustaining, but that might come after the theory behind the process is understood. As it is, it is a controllable process that can generate a known amount of energy given a set of operating parameters. | |
AdrianS: 26-Apr-2011 | Now that I looked over the wikipedia article on Polywell, I remember coming across it a few years back - I watched the Google talk that Bussard gave - but it fell off my radar when not much seemed to happen around the process. | |
Maxim: 26-Apr-2011 | the thing I like about this experiment, is that they seem to be doing all they can to avoid calling it a "cold fusion" device... probably to limit the media circus act. | |
AdrianS: 26-Apr-2011 | Rossi is an engineer - he's spent a good amount of his life on this and lots of his own finances - up until now, it's been out of his pocket. Why doesn't it seem reasonable to want to profit from something like this? | |
AdrianS: 26-Apr-2011 | the best discussion on this subject is on the vortex list. If the subject is of interest, start around mid-January when the news broke and work forwards. You'll find lots of very qualified people discussing Rossi. My take from what I've read is that this isn't a scam - there's been lots of precedent over the last two decades. Rossi has finally gotten a repeatable, consistent process, that's all. http://www.mail-archive.com/[vortex-l-:-eskimo-:-com] | |
Robert: 26-Apr-2011 | I'm wondering why he isn't telling how it's working. If he want to protect it, he has to file a patent, which makes the thing public anyway. | |
AdrianS: 26-Apr-2011 | he has filed for a patent, but there's been issues as the patent application is way too vague | |
AdrianS: 26-Apr-2011 | the post for the Jan conference is here. Start at page 1 and work forward and you'll get a very good sense for how this whole thing is being perceived http://www.journal-of-nuclear-physics.com/?p=360#comments | |
AdrianS: 26-Apr-2011 | he has had a prototype unit (about 10kW if I recall) heating a building for about a year prior to the public announcement. The plant(s) (there will be one in Greece and one somewhere else, I think) coming this year, hopefully, will be the validation of the process everyone is demanding. If you read at the above links, you'll see that his intent isn't to stop the technology from being used by as many people as possible. | |
Robert: 26-Apr-2011 | I would know a dozend companies that would use it immediatly. | |
Maxim: 26-Apr-2011 | I guess at a few million that would ;-) | |
AdrianS: 26-Apr-2011 | here's an interesting interview with Dr. Edmund Storms (pretty big name in the field) on Rossi http://coldfusionnow.wordpress.com/2011/03/04/edmund-storms-on-the-rossi-device-there-will-be-a-stampede/ | |
Maxim: 26-Apr-2011 | me too, I'd install a unit for myself and my neighbor. with a closed, permanent loop for heating and cooling. | |
AdrianS: 26-Apr-2011 | so far, his intent is to get it into industrial applications since licensing for that is a lot less prohibitive than for domestic use | |
Maxim: 26-Apr-2011 | also, the current machine is prohibitively "under performing" because by his own account... they have no clue what (rather why) its actually working. so they are using extremely safe levels of operation which have a zero chance of becoming dangerous. they are still trying to provide the theory behind the discovery. the current demonstrations provide a ratio of output of about 6-7 times output energy wrt input. I've read that they did tests up to 400:1, at which point explosions always occur... but by his own account, they will be able to significantly improve the "reactor" in the next years, when they start understanding it more. operationally safe levels could be a lot higher today, given a different environment in which they build the reactor so I expect tha commercial products will double output within a very short period of time. | |
AdrianS: 26-Apr-2011 | the sad thing is the Pons-Fleischman debacle hadn't happened (poor guys basically cut their careers short as a result), the filed could have been at this stage in the early 90's - with proper funding for research | |
Maxim: 26-Apr-2011 | the world is just waiting for a way to make energy without the requirement of special geographical resources. this might very well be it. nickel is a pretty abundant resource and there are mines all over the world. | |
Maxim: 26-Apr-2011 | and well, I hope there will never be a shortage of hydrogen ;-) | |
Maxim: 26-Apr-2011 | if, within a decade, it has be proven that the device is as safe as traditional oil furnaces are (we all accept that we have a bomb in our houses... so I don't see this as being any more dangerous). I'd say that we are talking about a shift in the need for huge powerplants, in the long run. if, I can use a kg of nickel for a few hundred bucks, to heat/cool my house and its water for a few years... why would I even consider using electricity/oil/gaz instead? | |
Maxim: 26-Apr-2011 | if everyone can basically cut his major energy costs by 90%, that means a sizeable reduction in grid energy requirements. | |
AdrianS: 26-Apr-2011 | yes, there is radiation, but not to a degree that a small amount of shielding can't be effective at stopping it | |
AdrianS: 26-Apr-2011 | some peope had, rightly, questioned the process being nuclear since there was no significant gamma radiation during the demo. Rossi explained somewhere that getting a radiation signature would give away the secret of the catalyst, so he made sure to cover up as much as possible | |
AdrianS: 26-Apr-2011 | a CRT has significant radiation, but it is allowed in the home | |
Maxim: 26-Apr-2011 | wrt public acceptance isn't going to be hard. the system instantly shuts off if you remove the input current, so that a simple fuse in the system makes it highly safe, in fact much safer than any conventional fossil fuel furnace in case of appliance failure.. my own furnace had a back-fire explosion two months ago... this litterally ripped off and blew the whole piping leading to the chimney right into the opposing wall. | |
AdrianS: 26-Apr-2011 | I guess there is a question of home-brew, poorly shielded impementations that could get out of hand if the intent is to go for the biggest output | |
Maxim: 26-Apr-2011 | the real danger IMHO will be in the handling of the nickel dust. so I'd bet a normalized "consumer-safe" rod will likely be built at some point. | |
Maxim: 26-Apr-2011 | I'll just wait for a blueprint in popular mechanics, before I build mine ;-) | |
Henrik: 26-Apr-2011 | the power will really be, when we can print this with a reprap 3D printer :-) | |
AdrianS: 26-Apr-2011 | speaking of Popular Mechanics above, they had a pretty negative article when this process was announced | |
Maxim: 26-Apr-2011 | current common sense in N-A would be: "if its not fire or hot wires... its obviously dangerous or else its fake" | |
Maxim: 26-Apr-2011 | wrt printer, yeah, I REALLY hope he gets the plans out, I'll build one for sure. my dad has a commercial machine shop with milling machine and all the rest. | |
Geomol: 26-Apr-2011 | He made a flute lately: http://3dhomemade.blogspot.com/ | |
Kaj: 26-Apr-2011 | A house plus store just completely exploded here today in the Netherlands due to gas, so I guess Maxim is right that switching bombs would be acceptable | |
Maxim: 26-Apr-2011 | btw, the one thing I have not seen answered wrt the Rossi invention is if explosions are radio-actively "dirty". if its easy to make these systems, and then eplode on demand, (by a simple switch it on) it becomes a rather disturbing technology if the explosion itself leaves radio-active elements behind. | |
Geomol: 26-Apr-2011 | And it's very little matter, that's involved in the fusion (if it work). I don't think, it'll be a big problem, unless the process can run uncontrolled somehow, like a fission meltdown. It's hard to judge, because the claimed process isn't very well understood (yet). | |
AdrianS: 27-Apr-2011 | just a note about the nickel consumption in the Rossi process - Max quoted 1kg/6 months for the demo reactor - the figure given by Rossi is closer to 100g/6 months for a 10 kW reactor. I've also seen that quoted as low as 65g | |
Henrik: 5-May-2011 | If you are a LastPass user: http://blog.lastpass.com/2011/05/lastpass-security-notification.html | |
onetom: 5-May-2011 | im using the hash-a-pass concept and i even wrote a rebol implementation for it: http://onetom.posterous.com/cross-platform-hash-a-pass |
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