Engineering

A stack is a concept in computer science that works like this:

You push value A into the stack, and it takes position 1. Then you pop the stack, and get A. If you were to push A, then B, A would be pushed into position 2, and B would be in position 1. When you pop, however, you can only get the value in position 1 (B) and A would pop to position 1. This is useful for data storage, but, expanding, you can do simplified arithmetic if you store data in positions 1 and 2, and define that the ADD command sums positions 1 and 2, erases 2, and stores the sum in 1. And so on.

A software stack is a stack that is implemented in the software of a computer: A large series of commands is given to the processor that make it store data in a "stack" somewhere in memory, and are usually sequential.

Pros: Simple to implement.

Cons: Slow and resource consuming.

A hardware stack is a series of memory units, often built into the processor, that quite literally are a stack. The only way to store data in them is to push, and the only way to access it is to pop from the first position (top of the stack).

Pros: Very fast, and is useful to the processor, even when you aren't actively using it.

Cons: Has to be engineered, and is often expensive to make.

The metric system is most widely used, used in every country with the exception of America and Belize.

square triangle circle oval rectangle polygon

The three most common types of heat transfer are convection, radiation, and conduction.

Conduction ---> (a teaspoon dipped in hot water)

Convection ---> (a pot of boiling water)

Radiation ---> (how the sun's heat reaches the Earth's surface)

the denisty of water is 1000 kilograms per cubic meter. since there are 0.3048 meters in every foot, and roughly .454 kilograms in every pound the conversion works out to 62.42796 pounds of water per every cubic foot so for 1 cubic foot of water there is 62.43 pounds.

In the rear differential assembly of some cars, which allows the inner and outer wheels to turn at different speeds while cornering

Gear cogs made from ferrous metals need to have teeth which are resistant to frictional wear, while the centres which are attached to the shaft need to resist the torques applied to the cog.

The Erie Canal

A graphical language used by engineers and other technical personnel associated with the engineering profession. The purpose of engineering drawing is to convey graphically the ideas and information necessary for the construction or analysis of machines, structures, or systems. See alsohttp://www.answers.com/topic/computer-graphics; http://www.answers.com/topic/drafting-2; http://www.answers.com/topic/graphic-methods; http://www.answers.com/topic/schematic-diagram-graphic-arts. The basis for much engineering drawing is http://www.answers.com/topic/orthographic representation (projection). Objects are depicted by front, top, side, auxiliary, or http://www.answers.com/topic/oblique views, or combinations of these. The complexity of an object determines the number of views shown. At times, pictorial views are shown. See alsohttp://www.answers.com/topic/descriptive-geometry; http://www.answers.com/topic/pictorial-drawing. Engineering drawings often include such features as various types of lines, dimensions, lettered notes, sectional views, and symbols. They may be in the form of carefully planned and checked mechanical drawings, or they may be http://www.answers.com/topic/freehand sketches. Usually a sketch precedes the mechanical drawing. Many objects have complicated interior details which cannot be clearly shown by means of front, top, side, or pictorial views. Section views enable the engineer or detailer to show the interior detail in such cases. Features of section drawings are cutting-plane symbols, which show where imaginary cutting planes are passed to produce the sections, and section-lining (sometimes called cross-hatching), which appears in the section view on all portions that have been in contact with the cutting plane. In addition to describing the shape of objects, many drawings must show dimensions, so that workers can build the structure or fabricate parts that will fit together. This is accomplished by placing the required values (measurements) along dimension lines (usually outside the outlines of the object) and by giving additional information in the form of notes which are referenced to the parts in question by angled lines called leaders. Layout drawings of different types are used in different manufacturing fields for various purposes. One is the plant layout drawing, in which the outline of the building, work areas, aisles, and individual items of equipment are all drawn to scale. Another type of layout, or preliminary assembly, drawing is the design layout, which establishes the position and clearance of parts of an assembly. A set of working drawings usually includes detail drawings of all parts and an assembly drawing of the complete unit. Assembly drawings vary somewhat in character according to their use, as design assemblies or layouts; working drawing assemblies; general assemblies; installation assemblies; and check assemblies. Schematic or diagrammatic drawings make use of standard symbols which indicate the direction of flow. In piping and electrical http://www.answers.com/topic/schematic diagrams, symbols are used. The fixtures or components are not labeled in most schematics because the readers usually know what the symbols represent. See alsohttp://www.answers.com/topic/schematic-diagram-graphic-arts; http://www.answers.com/topic/circuit-diagram. Structural drawings include design and working drawings for structures such as building, bridges, dams, tanks, and highways. Such drawings form the basis of legal contracts. Structural drawings http://www.answers.com/topic/embody the same principles as do other engineering drawings, but use terminology and dimensioning techiques different from thoses shown in previous illustrations. See also http://www.answers.com/topic/nomogram.

the constituents of crude oil are FEUL OIL,LPG, NAPHTHA,GASOLNE ETC

The answer is underground!

The longest bridges in the world are viaducts or trestle bridges.

It is easier to design a high, elevated roadway by

directly supporting it with many towers or piers (as in a viaduct or trestle bridges).

It is more difficult to design an elevated roadway with a large unobstructed span (as in a suspension bridge or arch bridge).

However, the bridges with the longest unobstructed spans in the world are invariably suspension bridges, because ...

Generally speaking, math is needed in science, engineering (not just in robotics engineering), economics, finance, accounting, medicine, and practically everyday life. The difference would be whether you want to acquire more knowledge, to have a better understanding of the subject, to have a critical thinking instead of blindly accepting what others say, to advance in career and statue, to invent/innovate, to expand your boundaries, and to apply to practical uses. You don't have to be an expert in all branches in math, but it would surely be advantageous that you know some math and enough to do your job (or to pass the tests).

a giraffe ecosystem is a bunch of giraffes living in one place with elephants and lions and lots of grass an trees with lots of other animals.

well as an engineering technician I struggle to stay alive. The pay is very low and you have to work really hard to become one.

An electrical circuit is an example of an electrical pressure to electrical current convertor.

What I've been able to find for the Hoover Dam says ~$50 million in the 1930's, today that's roughly $690 million. The entire Boulder Canyon Project cost around $165 million, which included the Hoover Dam.

The Hoover Dam has 17 hydro electric generators, capable of generating 2,074MW, which is quite large. The cost of a hydroelectric dam will be dependent on the river it crosses, the storage lake (how big does it need to be, is it man made, or already present, etc.), and how big it will be (how much electricity can it generate), and a host of other factors. I know of a 45MW (enough to power a small town, say 20,000 people) that cost $7.3 million in the 1930's.

Other than aesthetics, the biggest changes have been the sources used for the heat. They've gone from wood, to coal, to gas, to electricity, to microwaves, to convection. With each change in heat source, safety has been improved as well as insulation and efficiency.

Robots do a lot of different jobs. Robots can be programmed to construct small assemblies of parts much faster and with better accuracy than humans, and they don't need bathroom or smoke breaks. Robots can be programmed to perform almost any repetitive task that can be broken down into small steps and performed over and over again. Many tasks that are unsafe or dangerous for humans can also be done by programmable robots, such as painting, working with explosives, and so on. The use of industrial robots has increased a lot over the past few years, and they will no doubt become even more prevalent in the future.

Original Answer:

we culd not rate power that depends on loads we r using in our houses.

Updated Answer:

The vast majority of homes in the U.S. have 100-amp or 200-amp service at 240 volts, which is 24 kilowatts to 48 KW of load. 80% of that is 19.2 KW and 38.4 KW for a properly rated home. However, most homes use far less than that throughout the day and only approach those values during peak load times such as doing laundry while running the air conditioning, doing the dishes, vacuuming, watching TV in each room, using the electric stove, and having all of the lights turned on at the same time; generally not a situation that most home owners will face.

Plastic was created with natural rubber for balls, bands, and figurines as far back as 1600 BCE. The first man-made plastic is commonly accredited to Alexander Parkes, who developed Parkesine in 1855. Parkesine was created by treating cellulose with nitric acid and a solvent.

No

it prevents the heat of the apparatus directly.

the circle thing on the wire gauze ensures that the heat is spread everywhere

the cnc technology is applicable for high accuracy machining and high speed machining,it si more efficient than the conventional methods like lathe,driller,etc..by the application of cnc the production time can be reduced and there by increase the productivity and profit .