Forgot your password?

Comment: Re:Bigger phone batteries would be nice. (Score 1) 113

by rasmusbr (#47553123) Attached to: Stanford Team Creates Stable Lithium Anode Using Honeycomb Film

I don't recharge every night. I get a good night's sleep maybe twice a week my phone should be able to do at least as well.

Seeing as several phones I have owned have lasted on a full charge for days if not weeks that is not an unreasonable expectation for the average smart phone to live up to.

The average Android Phone actually does live up to this if you set the backlight to the lowest setting, turn off WiFi and uninstall any apps that launch background services. Turning off WiFi and removing apps that do stuff automatically pretty much renders it not a smartphone, but you do get good battery life.

Comment: Re:More Range Needed (Score 1) 113

by rasmusbr (#47551379) Attached to: Stanford Team Creates Stable Lithium Anode Using Honeycomb Film

The car companies themselves will be building the charger networks, perhaps with some minor subsidies from local governments. And it doesn't have to be all that fancy and probably not particularly expensive either if you build a network of bare minimum unassuming chargers. The car maker can indirectly offer their customers food and other services by placing the chargers next to shopping malls and restaurants with long opening hours.

Here is one of Teslas supercharge stations in Norway for example: I'm sure it cost a good deal of money to wire it up to the grid, but apart from that it couldn't have been too expensive to build.

Comment: Re:Ads are good for the internet. (Score 1) 394

by rasmusbr (#47491931) Attached to: Dealing With 'Advertising Pollution'

An ad like that has an expected return of about $10 per 1000 views, so it ought to cost you about $0.01 to skip it. Are you sure you would rather watch the ad than pay $0.01 and save 10 seconds? If you watch 10 videos a day that adds up to a mere $37 a year to never have to wait for the ad to end.

There is of course no payment system that would let you pay $0.01, but theoretically speaking, if such a system existed I think a lot of people would press the $0.01 skip button.

Comment: Re:04.10.2010 (Score 1) 503

by rasmusbr (#47483589) Attached to: Russia Prepares For Internet War Over Malaysian Jet

Yeah, by "rednecks and other idiots" I was precisely referring to the Russia-aligned separatists in Eastern Ukraine.

These weapons are designed to be part of a complex system with military radar, civilian radar / ATC and central command in addition to the missile launcher itself. Airliners do get shot down by mistake even with such a system in place. Now imagine that a launcher has fallen into the hands of a bunch of enthusiastic guys who aren't the sharpest tools in the shed and who at best maybe have some training on the launchers from back when they were conscripts, who don't understand the complexity and intricacies of telling hostile aircraft apart from civilian aircraft and who don't have the resources to do that anyway since they don't have access to civilian radar and ATC. If these weapons fall into the hands of poorly organized rebels it's only a matter of time before a civilian aircraft gets shot down.

Comment: Re:04.10.2010 (Score 4, Insightful) 503

by rasmusbr (#47481621) Attached to: Russia Prepares For Internet War Over Malaysian Jet

Russia already has a history of, at the very least, being a prime suspect for taking down a plane. The only difference now is that the world is actually watching this show more carefully.

So does the US:
And Ukraine:

The only real lesson is that surface to air missiles are way to dangerous to be put into the hands of the military. Now think about putting them into the hands of rednecks and other idiots who fancy themselves rebels. In retrospect it is pretty obvious that this had to happen sooner or later.

Comment: Re:Not new, and not shocking. (Score 1) 242

by rasmusbr (#47439055) Attached to: Texas Town Turns To Treated Sewage For Drinking Water

Singapore experimented with it in the 1970's, but the news is that it is now possible to do it at competitive price point. This means that cities like Phoenix and Los Angeles will not have to be abandoned when their natural water supplies run out.

I imagine that if the technology can be miniaturized and made to work in lower than Earth gravity it could also be hugely important for human space flight and colonization of other bodies in the solar system.

Comment: Re:Solaris not well supported by OSS toolchain (Score 1) 183

by rasmusbr (#47423983) Attached to: Ask Slashdot: Best Dedicated Low Power Embedded Dev System Choice?

They want a low wattage test system for doing embedded dev. Period. Don't skirt around it, don't try to poke and make fun of anything he says in the comment, either you can't help him or you can. MOVE ON.

The person doesn't really provide a power budget. Low power compared to what?

Are we talking a device that's going to need to run off of battery power for hours or days? Are we talking about a device that's going to be silent (no cooling fan)? Are we talking about a device that can have a cooling fan as long as it delivers good performance per watt? Who knows, the question doesn't specify.

Comment: Re:Wait until those lamers find out... (Score 1) 385

That if you REALLY want to eliminate fossil fuel usage, the big spending is going to have to be on dams and nuclear reactors.

Hydro power won't do. The world technical potential for hydro power is about 16 PWh, while the world demand for energy is something like 500 PWh, so there is no way that those 16 PWh could ever make a significant contribution.

Nuclear power's technical potential is only limited by the effectiveness of the technology, so nuclear could be a viable replacement given the right advances in nuclear technology. It is unfortunately possible to rule out current nuclear technology because it simply takes too long and costs too much to build a power plant using that technology. If the US government or state governments began funneling money into current state of the art nuclear power now then the first new nuclear energy due to that investment would come online in the 2030's and it would probably take centuries to replace fossil fuel that way.

For nuclear to be a viable replacement for fossil fuels I think we would need to imagine a nuclear reactor the size of a shipping container that could be made in a factory, or at least a reactor that could be assembled on site from a small number of components all of which are small enough to fit inside shipping containers. This could probably lead to dramatic reductions in the time it takes to build a reactor, which I think would allow nuclear power to come online rapidly enough to match the depletion rates of dwindling fossil fuel reserves.

Comment: Re:kind of like a small town fireworks show? (Score 2) 200

by rasmusbr (#47390837) Attached to: The View From Inside A Fireworks Show

The main reason why many governments have regulations for how much fireworks you can fire off in one night is that fireworks produce toxic smoke. Reykjavik is a relatively small city situated in what I believe is a windy area far away from any other major urban centers, so I would think that the potential for humans to be exposed being exposed to smoke from fireworks is unusually low there.

Or perhaps the city just wants to live up to its name...

Comment: Re:How many Panama canals? (Score 1) 501

Expensive and dumb.

If you're going to do something like this, why not build a system that harvests and concentrates the energy? Modern wind turbines are already not far from 1000 feet from the ground to the tip of the turbine blade. A little bit of R&D on stronger lightweight materials could probably lead to turbines taller than 1000 feet.

Comment: Re:just try it, it's fun (Score 2) 254

by rasmusbr (#47287765) Attached to: Ask Slashdot: Best Way to Learn C# For Game Programming?

Start simple - very simple. Try breakout, tetris, a board game, etc, then start adding features to learn about those features. Then make the game you really want to do in the same approach - minimum viable product, then flesh it out like stone soup. When the soup's done, ship it!


Except, start with what you know. If you're good at audio, start by writing a program that can receive and handle requests to play sounds. Now, in a complex game like an RTS the sound effects will need to overlap. So for instance in a space-based RTS the roar of a rocket launch may need to overlap with multiple bangs och zaps of plasma rifles and lasers. Once you have a sound program that works well enough you can call that your sound engine.

APL is a write-only language. I can write programs in APL, but I can't read any of them. -- Roy Keir