Interesting Links for 18-04-2012
Apr. 18th, 2012 12:00 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
andrewducker- Scotland's wind expertise is paying off - now selling turbines to the USA.
- Scotland's wind expertise is paying off - now selling turbines to the USA.
- Moore's Law hits cinema cameras - a 2.5K Cinema Camera with 12bit RAW for $3000
- A message to application programmers (these things piss me off too)
- 10 films that were rumoured to be ghost-directed
- Boston, 1967: When marathons were just for men
- At last, a use for homeopathy!
- An explanation of tech terms through the medium of breakfast cereal
- The 501 Developer Manifesto - valuing life over your job
- Wind Turbine Makes 1,000 Liters of Clean Water a Day in the Desert
- The BP oil spill, two years later: Natural recovery far greater than expected
- Twitter Vows To Sue For 'Defensive' Patent Purposes Only. Fantastic. Can we see a trend please?
- Talking to yourself has cognitive benefits
- Half-siblings of autistic children have 50% the chance of having autism as full-siblings
- Neil Gaiman Interviews Stephen King
- What Happened to the Iceberg That Sank the Titanic? (I'm looking forward to The Berg Strikes Back!)
- Now that consumer IP is non-rivalrous and non-excludable, what does that tell us about its price?
- Further evidence found of disturbed immune system in autism
- Operators think Nokia would sell better with Android - Windows smartphones still not selling
A shame, as I'd love there to be more competitors in the phone space, to keep everyone on their toes. I'd actually be tempted by a Windows phone, if they weren't locked to the MS app store.
- We Don't Need Game Publishers, Hardware Makers or Retailers
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no subject
Date: 2012-04-19 11:04 am (UTC)I think you would need to process about 1.7million cubic meters of air to produce a 1,000 litres of water.
The capacity of air to carry water at 40 degrees Centigrade is 49.8 grams per kilogram of water. The desert air is about 5% relative humidity so is carrying about 2.49 grams per kilo.
Air weighs about 1.2 kilograms per cubic meter of air so a meter cubed of air is 0.833 kilos. A cubic meter of air would be carrying about 2.1 grams of water.
I make the dew point for air with this amount of air somewhere about minus 5.
If you drop the temperature to -10 the capacity of air to carry water falls to 1.8 grams per kilo.
For every kilo of water you reduced from 40 C to -10 C you get 0.69 grams of water. For every cubic meter it’s 0.575 grams.
So to get a million grams (or 1000 litres) you need 1,739,000 cubic meters of air chilled from 40C to -10C.
I’m having some difficulty believing the amount of energy I think you need to do this.
no subject
Date: 2012-04-19 11:40 am (UTC)Interesting discussion here:
http://news.ycombinator.com/item?id=3856764
including that they only expect 350L/day in the desert, it's 1000L/day in a temperate climate.
no subject
Date: 2012-04-19 01:04 pm (UTC)Except that it seems an expensive way of doing things.
Something about 30kW is going to cost about £100k. Ish.
That seems an expensive way to produce water.
I can see it working for somewhere like the farming communities of South Australia who might be able to lay their hands on a couple hundred thousand dollars but I think they’d be better of running the turbine for power and using the power for, inter alia, a desalination plant.
If a family living in Africa could rustle up £100k-£200k then they be better off buying a house in East Kilbride, where it rains a lot.
no subject
Date: 2012-04-19 04:20 pm (UTC)no subject
Date: 2012-04-19 04:26 pm (UTC)I often remember how visible the exchange students from Kenay and Nigeria were in Aberdeen.
Strangly, especially during the Christmas holidays when most of the UK resident students had gone home.