121 karma · joined September 28, 2012
Largely due to mining, Australia's average wage is around $70k but our median wage is around $45k. Pretty crazy.
It's a similar atmosphere to Texas oil culture (I hear, anyway). Lots of secessionists saying Western Australia is keeping the country afloat. This is somewhat true (but not entirely), and they tend to forget 20 years ago WA was a shitheap with nothing going for it.
So, them being 'black' isn't really the point. The point is the potential to get steam from water at lower temperatures, in less time.
If you are dealing with A LOT of water (if you were to scale this to power-plant scale), you are dealing with large 'thermal mass'. This means you need a lot of heat over time to raise all the water to a high enough temperature to create electricity.
If you run a power plant, you want flexibility. You want to switch on your power plant fast, and then shut it down when you want, without cost. This lets you speculate on the electricity market, and be more available if there is a sudden spike in electricity demand. If you're dealing with large thermal mass, you don't have this flexibility.
Also lots of advantages of lower cost - not needing heat exchangers etc but I'll leave it there.
The most common ones use thousands of mirrors around a central tower. The sun bounces off the mirrors and focuses at the top of the tower where there is a tank of water. The water is heated, boils, turns to steam, which turns a steam turbine.
Look up BrightSource Ivanpah
I work in the solar thermal industry - my company (http://www.sunapse.co) builds software for solar thermal power plants. I can say with some authority that this is legit and VERY promising tech.
Raising 750k in 30 days is no small feat and is awesome market validation. This should really help them raise more investment and keep growing.
2. "Why would you use this if you could just use a GPU - they're really parallel right??" - GPUs are very very different beasts to CPUs. They are great at what they do, but they are tailored for very specific problems. Look up SIMD. A tonne of general purpose programs which need, for example, a simple 'if statement' quickly break down under SIMD.
3. "This will be great for mining bitcoins" - yeah. but you can do it on a GPU so stick to that. As far I can see (and why I backed the project), this board will be great for those problems which are not immediately or easily implementable as a wavefrontable algorithm for the GPU. I'm hoping you can just write a c program utilising pthreads which will be run on the Epiphanies cores
I backed $99. I'm very excited.