Grand Plans for Moon and Mars, Budget Permitting

New York Times

The advances in technology could also enable cargo versions of the Altair without astronauts to bring modular components of an outpost as well as ...

UTD scientists and their role in getting man on the moon Dallas Morning News

Auction Offers the Moon--Or at Least NASA Gear That's Been There ... Scientific American



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Japan Govt: Economy Showing Signs Of Picking Up

Wall Street Journal

In its individual assessment of economic components , the government raised its view on exports, a key driver of the economy, to say they "are picking up", ...



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NEC's New Front End Integrated Circuit Simplifies Board Design and ...

FOXBusiness

By integrating these components into one die, the FEIC reduces component count, saves total bill of materials (BOM) cost, simplifies procurement, ...



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How do the biotic and abiotic components change the equilibrium of the ecosystems?
Q. How do the biotic and abiotic components change the equilibrium of the ecosystems?
Asked by s h - Tue Jun 5 22:48:52 2007 - - 1 Answers - 0 Comments

A. biotic components are those created by living organism and biotic components are those like chemical and non living things in the environment, these are form by light, water, wind... and when these are changed the equilibrium of the ecosystem is somehow changed. It can lead to changes in biodiversity and habitats.
Answered by SleepyPlant - Wed Jun 6 00:36:29 2007

What is the main components of crude oil?
Q. Hello, im doing a research on crude oil, and i need to know whats the components of crude oil is. The problem is i cant really find it. Thank you for all of your help.
Asked by Fadhil - Fri Apr 27 13:01:20 2007 - - 3 Answers - 0 Comments

A. Millions of compounds of Hydrogen and Carbon called Hydrocarbons. They all form 'Families' as follows: 1...Aliphatic hydrocarbons:- (straight or branch (iso) chains). a)...Saturated molecules (hydrogen full) called 'ALKANES' b)...Unsaturated molecules (missing some hydrogen), called.. ...'ALKENES'...(or Olefins). ...'ALKYNES'. ...'ALKA-DIENES' 2...Cyclic hydrocarbons: - Ring shaped molecules. a)..Saturated 'CYCLO-ALKANES' (Naphthenes) b)..Unsaturated ... 'CYCLO-ALKENES' (cyclo-olefins) ... 'CYCLO-DIENES' ... 'AROMATICS' ..(Based on the Benzene Ring). All of these are present in Crude Oil and from them, just about anything you come across is produced from compounds containing these molecules. There are millions of products using Organic… [cont.]
Answered by Norrie - Fri Apr 27 15:10:03 2007

How do you seperate all five components?
Q. In class, we are doing a separation lab where we have to separate salt, iron filings, sand, PDB, and sulfur. All of these five components have been mixed togther to make a single mixture that weighs one gram. Does anyone have a step-by-step procedure on how to seperate all five components? If you have any ideas, then just please answer. Thanks! =] We are actually going to attempt to do this lab. It's worth four grades! So instead of criticizing and saying that all five components aren't fit to be together, try to help!
Asked by crystal - Wed May 21 01:05:00 2008 - - 1 Answers - 0 Comments

A. 1. Use a magnet to pull out the Fe. 2. Add water to dissolve the salt and separate that from the rest which are insoluble. You can recover the salt by evaporating the water. Here's were it gets interesting. The others are all more dense than water, so noting is easily separated based on density. Is this simply an exercise or are you actually going to attempt this? I would avoid giving students paradichlorobenzene since it is a suspected carcinogen and separating it and sulfur would seem likely to produce some undesirable substances. Given enough time paradichlorobenzene will simply undergo sublimation and disappear. Heating it will probably hasten the process. Sulfur is soluble in carbon disulfide or will react with methane to… [cont.]
Answered by pisgahchemist - Wed May 21 01:52:45 2008