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


Forgot your password?
Take advantage of Black Friday with 15% off sitewide with coupon code "BLACKFRIDAY" on Slashdot Deals (some exclusions apply)". ×

Comment Re:Crap (Score 1) 177

You should add to the math eolic, tidal and geothermal energy that are as ecologic as solar. Also, probably the most advanced and powerful solar technology is not taken in consideration in your comment: solar satellites collecting solar energy in the space and retrasmitting it to Earth using a decoupled microwave beam. Since solar energy in the space is much more powerful than on Earth where is filtered by the biosphere, it was calculated that a network of solar satellites could provide enough energy for the whole planet, even beaming it on request on spot without the need of any infrastructure.

Comment Re:Must past this test (Score 1) 508

For each one taking a driving license there are high stakes someone will hit a car sometime in his life. How do insurance companies handle that? They do. For being a better option self-driving cars just have to be better than us, they don't have to be perfect. Besides, technology improves rapidly, so in a short while they'll become almost perfect. We won't. No matter how long you wait for it to happen.

Comment Non existent problem (Score 1) 360

Anybody having a clue on what an incredible complex task space exploration truly is can't mind a little bit about such an issue. At the current state of things we can hope to explore our solar system at best. We have already started to do it by drones (Mars rover) and in the future, with the constant improvement of artificial intelligence and robotics, this will be the norm. Space travel to far aways planets such as Jupiter or even Mars are too long and risky for an human crew where drones don't need a round trip ticket. Besides, stars' exploration, in order to be feasible, requires much more advanced technology to be researched. It involves theories such as the Alcubierre's warp drive, which requires creation and manipulation of exotic energy at the highest levels. This is probably the last technological advancement to be accomplished. Any other advancement appears to be much more at hand: nanotechnology, advanced genetics, photonic CMOS, quantum computing, strong A.I. .... everything else is a joke compared to star exploration, which means that, by the time we'll be able to reach Proxima Centauri, such issues as "how to have sex in space" will be vastly irrelevant.

Comment Yes, a forecast with CURRENT technology (Score 2) 86

I've read the article (the WHOLE article) and the exaflop issue is generally posed in terms of power requirements in reference to current silicon technlogy and its most strictly related future advancements. The caveat of that is that not even IBM thinks exaflop computing can be achieved with current technology, that's why they are deeply involved with photonic CMOS, of which they have already made the first working prototype. Research into exaflop computing in IBM is largely based on that. You can't achieve the necessary power requirements without moving (at least in part) from electronic to photonic. This will decrease power requirements (and cooling requirements) by a large factor.

Comment 1985's C64 "Vizawrite" files... (Score 1) 498

The oldest files I've recovered are some text files written with Vizawrite 64 (Commdore 64) dating back to 1985 and imported on PC through a still working Commodore 1541 disk drive and a custom-made USB interface for it. For the records: yes, these disks are still working perfectly after 25 years, and some of them were not even branded. Of course this stuff works through emulation. For not emulation stuff, the oldest things I have are word processing files created with the Cloanto C-1 Text on a Commodore Amiga in 1989. They were copied on DOS standard 3.5 disks when I switched to Macintosh using a software on the Amiga that read / wrote DOS disks, and since then they have been copied on every system I brought through the years. Open Office sneezes a bit at them but eventually loads them correctly.

Comment about the overpopulation argument (Score 1) 554

I'm so amused at some comments pointing at overpopulation as the main argument against life extension. It's exactly like saying you aren't buying into Information Technology because you won't be doing the maths by yourself so you could fall of exercise! It's a stupid argument. Making people life forever is an hard task, making them sterile is way easier. Don't you think that, once biotechnologies become sophisticated enough to enable a sort of "genetic immortality" we'll all be asked to choose between that and breeding? Do you remember what's the point of having childs? Because we die. And we die so that our biology can improves through succeeding generations. We don't need that anymore. We can improve ourselves in other ways. We don't need to die. We don't need to bother about overpopulation. That's just an excuse to avoid real in-topic debating.

Comment Oil is the past. Let it be. (Score 1) 570

I'd like to ask Ecomotors how can by any means a petroleum engine burn less oil than an EV. This is clearly a research heavily biased toward oil companies as EVs can be recharged on fully renewable energy source such as solar panels or wind turbines, something that petroleum engines, no matter how little oil they burn, will never do. We have had petroleum cars for 100 years. That's enough. It's time for a change and we don't need any kind of alternate fuel engine. They are old and dated by now. If we really get engaged in this feat, lithium batteries will get less and less expensive while solar factories will grow larger and in number (not considering even further breakthrough on the way such as solar satellites). Oil is the past, let it be.

Time is an illusion perpetrated by the manufacturers of space.