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The Military

Submission + - Bomb Kills Another Iranian Nuclear Scientist

Hugh Pickens writes writes: "AFP reports that Iranian nuclear scientist Mostafa Ahmadi Roshan was killed instantly in a Tehran car bomb assassination which occurred in front of a university campus in east Tehran that Iran has blamed on Israel that threatens to ignite a dangerously tense international standoff over Iran's atomic program. Roshan had specialized in making polymeric membranes to separate gas and was involved in purchasing equipment for the Islamic republic’s main nuclear enrichment facility. Iran uses a gas separation method to enrich its uranium. "The method of this terrorist action is similar to previous actions that targeted Iran's nuclear scientists," says Safar Ali Bratloo, deputy governor of Tehran province. Three other Iranian scientists were killed in 2010 and 2011 when their cars blew up in similar circumstances. Tehran has blamed the assassinations on Israel and the United States while both countries have denied the accusations. The killing sharpened an international confrontation over Iran's nuclear program in which threats and counter-threats are being increasingly backed with militarized displays of muscle as western nations, the United States in the fore, are steadily ratcheting up sanctions on Iran with the aim of fracturing its oil-dependent economy. Tehran's determination to forge ahead with its nuclear activities have been underlined by the International Atomic Energy Agency's confirmation that Iran had begun enriching uranium at a second facility — its Fordo fortified underground bunker."

Comment Re:Massive farms of artificial trees... (Score 1) 368

icebike:"Burning the CO2 after separating it into its component parts" (Chemistry anyone? Is it Slashdot?)
How about stop talking about the CO2 like it was cryptonite or something. A growing biomass uses sun to capture the CO2. Wouldn't you ask what to do with all that biomass captured CO2? How about using sun to power the above mentioned endothermic reaction and then using methanol in the fuel cell instead of burning million years old trees, then getting 10% of that heat into electricity and then losing 90% of this into the grid leaving you 1%? Of course its practical use may be limited but using the CO2 term like this is just plain stupid and it shouldn't get insightful from anyone with more than basic education.

Comment Re:Massive farms of artificial trees... (Score 1) 368

Its all true. Then the hydrogen fuel cells are said to be unstable or expensive. Holding methanol is easy and relatively safe, unless someone really thirsty decides to drink up the battery or something. The laptop prototype using fuel cell with methanol :
http://greenupgrader.com/2481/polyfuel-methanol-fuel-cell-t40-laptop-prototype/
Getting really pure methanol out of other sources requires a lots of energy costly refining as well. Maybe it will require smaller equipment too (thinking of domestic chargers)?

Comment Re:I got my beta invite yesterday (Score 2) 241

There is a general guideline to not to respond to AC trolls but I believe that I have to defend what in my opinion is the spirit of Slashdot. So what if he likes a product published by Microsoft?
1. It is his opinion.
2. There are also good products published by Microsoft. Their work is often quite impressive - Look at white papers coming out from Microsoft Research.
3. Even if he worked for Microsoft, then maybe he could sometimes afford to little bit promote the products associated with him. People working at NASA post about their projects sometimes. This is Slashdot, shouldn't be news to you that most of the people here work for technology companies.

Comment Re:Wish they would just knock it off with "earth-l (Score 2) 168

Usage of a term depends on it's definition. So where is it?? In your post or somewhere?

There is such a term like Earth analog which is the synonym for Earth-like planet (I found it in Wikipedia and the first poster should try using it), there are no good specifications inside that specific article, although the round talk under "Attributes and Criteria" is quite similar to the above posters.

http://en.wikipedia.org/wiki/Earth_analog#Surface-water_and_hydrological_cycle
How about somebody define it then?

There is something a little bit more specific in:
http://en.wikipedia.org/wiki/Earth_Similarity_Index
- At least you can say for sure that KOI 736.01 has Earth Similarity Index (ESI) of 0.98 and Standard Primary Habitability (SPH) of 0.63.

Comment Some notes about solar cells (Score 3, Insightful) 835

Solar cells are potentially made from carbon :
graphene - http://www.alternative-energy-news.info/carbon-based-solar-cells/
or carbon nanotubes - http://www.bitsofscience.org/solar-cell-carbon-nano-energy-3418/
http://inhabitat.com/carbon-nanotubes-could-create-better-solar-cells/

The other technologies like wind turbines and those steaming solutions are just alternative green solutions to solar cells that are often cheaper. When the solar cells are going to continue to get cheaper like they are and no new alternative pops out, then they will probably be the prefferable choice of green energy.
http://www.guardian.co.uk/environment/2011/jun/20/solar-panel-price-drop
Their co-existence with new ways of storing electricity would make them even more practical.
New cheaper ways for making hydrogen:
http://www.gizmag.com/fukai-hydrogen-extraction-process/16674/
or carbon based supercapacitors?
http://www.sciencedaily.com/releases/2011/05/110512150731.htm
My point is, that there are actually new advancements in every horizon, which make this article a bit outdated.

Comment Re:This would solve... (Score 1) 243

AC:

China is doing this too... they know that the US has the ability to stop food shipments at any time, so have been developing technologies to make arable land in the Sahel and other parts of Africa to feed their population, and part of that is automated tilling/planting/irrigation/harvesting.

WHAT?

1. Sahel is a part of the Sahara desert with probably the worst famine problem in the world. Part of the problem is that the land is being over used and then turns into desert.

Over-farming, over-grazing, and over-population of marginal lands and natural soil erosion have caused serious desertification of the region.

-http://en.wikipedia.org/wiki/Sahel

2. Now, are we aware that Eurasia and Africa aren't one little island west of USA? The closest land route between China and Sahel would be something like 4500km and it would go over the hills, (other) deserts and through countries with not so friendly governments, bandits and areas with no roads. The sea transport would take months.

3. In EU the overproduced wheat (side effect of the EU's agricultural market stabilization measures) is being burnt because it would be too expensive to ship it to .. Sahel for example.

4. I am probably answering to a troll, again. I am not going to delete the post this time.

Submission + - World emissions of carbon dioxide soar higher than (washingtonpost.com)

Layzej writes: The global output of heat-trapping carbon dioxide jumped by the biggest amount on record in 2010, the U.S. Department of Energy calculated. A chart accompanying the study shows the breakdown by country. The new figures mean that levels of greenhouse gases are higher than the worst case scenario outlined by climate experts just four years ago. It is a “monster” increase that is unheard of, said Gregg Marland, a professor of geology at Appalachian State University, who has helped calculate Department of Energy figures in the past. The question now among scientists is whether the future is the IPCC's worst case scenario or something more extreme.
Open Source

Submission + - Visual Language for Arduino - Minibloq (i-programmer.info)

mikejuk writes: A colorful and easy-to-use open source language for programming has reached v0.8. Minibloq is fast and compact and a great way to program the Arduino productively even if you are an adult!
Programming hardware can be difficult but Minibloq reduces it so dragging and dropping colored functional blocks. It targets almost any type of Arduino and a number of robotic systems as well. It is also easy to extend.
Now all you have to do is learn to solder....

Robotics

Submission + - Pocket sized drones wins £20 mil contract fr (suasnews.com)

garymortimer writes: "Developments in micro electronics, especially in mobile phone and battery technologies, have made it feasible to develop advanced flying platforms that weigh just a few grams. Teaming up specialists in video and signal processing, hardware design and operational know how created the necessary foundation for the company. During 2009 the company more than doubled in size creating the largest UAS Company in Norway.

The PD-100 Black Hornet is the first airborne Personal Reconnaissance System to be developed. It will provide soldiers with their own immediate Intelligence,Surveillance and Reconnaissance capability for operations in confined areas and outdoors."

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