Comment: Re:Aquaponics (Score 1) 592
Let H_t be the height of the tower from the bottom of the farm.
Let H_f be the height of the top of the farm from the bottom of the farm. (1.5 m in your case)
g = earth's gravity.
Note 1 kg of water = 1 liter of water.
Now, for every kg of water in the tower, (H_t - H_f) * g joules of energy are released. Each kg pulled up from the bottom of the tower uses up H_f * g joules of energy. So thus, every kg down can lift up (H_t/H_f - 1) kgs of water. So, if the tower is 15 meters tall, then you only need 1 kg to get 9 kg up. In your case, for example, if the tower is 15 m tall and you want 3000 kg/hour, you only need 300 liters of water in the tower to run it for an hour assuming your mechanical pumping system is 100% efficient (obvious it won't be, but it probably will be pretty close). The falling water can also run the air pump, solving that problem while you're at it. You can still have the electric system as a back up. Note that it is often much more windy at night than during the day so you might want a 24 hour storage system. This might get big, but if you are already building a huge tower for the wind turbine, it might not be all that bad.
Australian Govt Censors Notes From Secret Anti-Piracy Talks 177
from the need-to-know-basis dept.
Comment: Re:This looks like a failure waiting to happen (Score 1) 243
The intent I fully and whole-heartily agree with... However, 2% of _world_wide_revenues_ is what concerns me. I'd rather see it phrased as 2% of world-wide revenue apportioned to user base / affected users (affected or not by breach).
Hence, the larger the breach, the larger the fine. I could easily see Company A arguing to US regulators : "We shouldn't have to pay for US users as the EU already fined us for everyone.".
Comment: Re:Ho Hum (Score 1) 181
Comment: Re:Where does the hydrogen come from? (Score 1) 105
Comment: Re:155mph isn't green using any fuel (Score 1) 105
Comment: Re:Not psychopaths, just the murdering ones (Score 1) 270
Just because A implies B, does not mean that B implies A.
( A = Identifiable word choices, B = Psychopathic Murderers ).
Comment: Dryad (Score 1) 67
Microsoft has a equivalent to Hadoop known as Dryad.
They should have open-sourced Dryad a long time ago.
I wonder what is going to happen to Dryad with this focus on Hadoop.
Comment: Why spread the vile? (Score 5, Insightful) 699
Posting stories on Slashdot / Putting it on CNN is only helping them get what they crave : Attention.
Some problems are best ignored - then they'll fade away out of frustration when they realize they're not getting the attention.
Blah blah - free press - I get it. I'm not asking for a law but common sense to take place.
People love dirty laundry - D. Henly.