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Questions answered by Mr Scott Liddell  UK   (Expert Rank: 560) Member has an expert rating of 100+
 

What is an IP address?

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Question found in Engineering
Every computer that is on a network (a local network, or the network of the Internet) has a unique IP number [four sets of numbers divided by period with up to three numbers in each set. (I.e. 64.139.27.165)] - If a machine does not have an IP address it cannot be on a network. Most machines also have one or more Domain Names that are easier for people to remember. i.e. www.google.com. Within an isolated network, such as an office, you can assign IP addresses at random as long as each one is unique. However, connecting a private network to the Internet requires using registered IP addresses (called Internet addresses) to avoid duplicates.

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In the early days of air travel why was it so dangerous to fly over Antarctica?

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Question found in Aircraft/Aviation
Older piston or radial engines didn't cope well in cold temperatures, fuel lines froze etc so flying over Antarctica could cause engines to freeze.

Obviously, there aren't many good places to land either so it was dangerous as there wasn't much room for error should the plane encounter difficulties.

Also, Antarctica itself is very far from other land, older planes would also be at the limit of their range with regards to fuel.

Comments :
Very nice keep it up

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What type of flame will I get when using a bunsen burner if I

a) keep the air hole closed

b) keep the air hole half closed

c) keep the air hole open

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Question found in Science In General
a) keep the air hole closed
The "coolest" flame is a yellow / orange colour. It is approximately 300°C. It is never used to heat anything, only to show that the Bunsen burner is on. It is called the safety flame.

b) keep the airhole half closed
The medium flame, also called the blue flame or the invisible flame is difficult to see in a well-lit room. It is the most commonly used flame. It is approximately 500°C.


c) keep the airhole open
The hottest flame is called the roaring blue flame. It is characterized by a light blue cone in the middle and it is the only flame of the 3 which makes a noise. It is approx 700°C.

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Can I still download to an apple ipod without a dock?

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Question found in Electronics and Gadgets In General
Yes, it comes with a USB cable, so you can connect it to your PC provided the PC has a USB port.

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Is there ever a case when the generic activities of software engineering process don't apply?

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Question found in Computers Advanced
Yes, there are always situations like this. Its always a question of the balance of risk and business imperative. Generally most generic activities happen in some form, even if not in their full, recognisable state. Clearly, you always have to:

1. Know what to build (requirements)
2. Build it (development)
3. Make sure it does what its supposed to (test)

But you can flex these a lot to achieve the goal, sometimes speed is everything and you don't do formal requirements, you get agile and define on the fly. Sometimes risk is low so you can go easy on test and put something out into alpha/beta.

Always ask yourself what the main goal you are trying to achieve (in a business context) and assess the risk. If you do this, you should always get your life cycle balanced.

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Would a dead body decompose in space?

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Question found in Physics
When something is propelled into space it undergoes a process called 'outgassing' (http://en.wikipedia.org/wiki/Outgassing). Because of this I would expect a dead body to lose most of the gases, including all its oxygen.
That would be that only the anaerobic processes (those that don't need oxygen), so this leaves the bacteria in the gut etc.
There would probably be some decomposition but the body would lose all its water and then freeze after a pretty short space of time so I doubt a body would decompose fully. I doubt the impact of the continuing anaerobic processes would be visible before they stopped.

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Who is the owner of McDonald's restaurant? What year was it found and where in the country does the owners live? Can you tell me a bit about them?

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Question found in Entrepreneurship
All the info you need is here:

http://en.wikipedia.org/wiki/Mcdonalds

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How do I generate a rectangular image with rounded corners in PHP?

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Question found in Programming
You need to have 4 separate images for each corner of the rectangle (quarter circle) each, you then need an image for the horizontal side and one for the vertical sides which can repeat to fill the gap to the corners.
You can lay it out using a table like:






src="topright.gif">
Content goes here



You can see an example here:
http://www.chocpics.com/

Not sure if there is anything specific in PHP to do this kind of thing, don't think there will be.

Its not really

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Why “Water Fall” method is rigidity?

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Question found in Software
The "waterfall" method is seen as rigid because it imposes a direct and dependent flow between the phases of the development lifecycle. In the waterfall method, requirements are followed by design, which is followed by build which is followed by test. It does it (in its pure form) allow the lifecycle to return back to a previous phase and iterate again (as more agile methods would allow). Because of this it is seen to have rigidity.

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Scientists have kinda explained where man came from and how he evolved but where did dinosaurs come from, and what was there purpose?

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Question found in Science In General
No creature has any other purpose that to survive and perpetuate its own species. The particular design of any creature is decided by evolutionary processes to adapt the creature to best suit its environment and give it the best chance for survival. Dinosaurs existed as they were the design that worked in that time and evolved in their own time to become more suited to the environment.
Dinosaurs simply evolved from creatures that came before.

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