Engineering

It is not at all abnormal for an engineer to be good at math but bad at writing because one who is good at math tends to do problems in his own less time consuming way. In this process he deviates from his good writing skills (if he has any), to reach the solution

However it is extraordinary for an engineer to be both good at math and writing and abnormal for being bad at both!

The glass point of a material, also known as the glass transition temperature (Tg), is the temperature range at which a polymer or amorphous material transitions from a hard and relatively brittle state into a more flexible and rubbery state. Below this temperature, the material exhibits glass-like properties with limited molecular mobility, while above it, increased molecular motion allows for greater flexibility. This transition is crucial in determining the thermal and mechanical behavior of materials, particularly in polymers and glasses.

Generally, NM (Newton Meter) is a force times the length of the arm. Bar is Pressure (force per unit of area). The conversion is not possible to calculate because of the difference in extensions (NM or N/m²).

However, in engine design the load of the engine can be given in bar (cylinder pressure) but converted into torque (N-m) by the following conversion: Cylinder Pressure (bar) =

Torque (N-m) * nrev * 2 * pi / Cylinder displacement (cubic meters) / 100,000

where: nrev = number of revolutions per cycle (2 for a 4-stroke engine, 1 for a 2-stroke)

Answer

In the US, it only requires a Bachelor of Science Degree in a related field of Engineering.

also in England you need physics and maths

In the UK:

You need 5 GCSE's at grades A-C, these must include English, Maths and Physics.

You need a grade C or above at A Level Maths and Physics

And finally....a degree in Aerospace Engineering.

You build a basic car, with a body and a way to support the front wheels and the back wheels.

Each set of wheels should be firmly attached to an axle, maybe a piece of dowel, so

that when the axle turns, so do the wheels.

Then you need some way to

attach the end of a strong rubber band to the middle of each axle so that

when you rotate the wheels, the rubber band winds around the axle and

stretches tight.

You can do this with a small nail or screw put carefully

through the dowel. The best way to wind the wheels is probably to push down

on the car while you push the car along a surface, like carpet.

once the rubber band is really tight,

you let the car go, and the stored energy in the rubber band unwinds the

axle, and off goes the car

You don't have to have the band wind around

both axles ... you could make it either just frontal drive or

rear-wheel drive, but it probably goes better if you use both axles.

You

could also use two rubber bands, one for the front wheels and one for the

back wheels, with the ends of each rubber band fixed to the middle of the

car.

Remember, the car will go fastest and the most distance if you use a

really BIG strong rubber band, and can wind it up around the axles really

really tight. But if you make it TOO tight or too strong, the car or the axles might break when you wind it up, which is not good and really annoying.

Another way of making a car like this is to make it like the rubber-band

powered toy airplanes. Make a light frame with 4 wheels, and buy a little

toy propeller or take it off a toy airplane, then wind up the rubber band

by winding the propeller. Then when you let go the propeller, it will drive

the car along.

The short answer: Cost effectiveness.

The long answer: Employing water as a hydraulic fluid is entirely possible for many applications, but produces several additional challenges which will dramatically and likely prohibitively raise the price of the apparatus. For most applications, the higher costs will represent an unmarketable product.

The issues include:

Viscosity: Water has a much lower viscosity and higher specific gravity than hydraulic oil. This results in at least 3 other issues. First, the piston and cylinder materials (usually steel) will erode much quicker due to the resulting higher velocity and more turbulent flow. Second, the use of special valves will be required to prevent the mechanical shock caused by abrupt fluid flow stoppage inherent to water. Third, the lower viscosity also means it will be more difficult to prevent leaks, requiring more stringently machined parts with much finer tolerances.

Bacteria: A closed water system can provide a breeding ground for all kinds of microorganisms. This can result in clogged lines, filters and a potentially unsafe/unhealthy condition in the event of a leak.

Corrosion: Oxygen in the water as well as sulfurous by-products from bacteria can potentially corrode component materials.

Temperature Range: Water freezes at 32 degrees Fahrenheit. If freezing occurs, and due to the non-compressible nature of ice, it will almost certainly damage or destroy hydraulic parts. Anti-freeze agents will need to be utilized at the cost of the inherent environmental and toxicity concerns of such substances.

Lubricity: Water's comparatively low lubricity will lead to increased contact friction and resulting wear of components.

All of these issues can be addressed and overcome, with the disadvantage of dramatically higher cost vs. hydraulic oil.

homologous structures is same structure,different function

B.Sc. Engineer (Civil) or M.Engg (Transportation) or M.Sc. Engg (Transportation).

A chemical engineer is required in energy systems across various segments such as oil and gas sector, fuel cell sector, water technology sector, next generation hydrogen energy sector, atomic and nuclear energy sector, biofuels sector, cryogenic and ultra low temperature energy production sector and so on. The chemical engineer will design processes and provide operating conditions for generating commercial energy from the above mentioned sources such as hydrogen, nuclear, biofuels, oil&gas and maybe even in thermal power plants. Chemical engineers will give energy production strategies from various above-mentioned sources.

Because the vibrations of both the waves travel parallel to the direction of propagation of waves. For eg: both the waves have amplitude, frequency etc.

Thevenin's Theorem is especially useful in analyzing power systems and other circuits where one particular resistor in the circuit (called the "load" resistor) is subject to change, and re-calculation of the circuit is necessary with each trial value of load resistance, to determine voltage across it and current through it.

Class A fires (paper, wood plastic, etc) can be put out by water, dry chem, or carbon dioxide extinguishers. Class B (flammable liquids like oils and natural gases) can be put out with dry chem and carbon dioxide. Class C (electrical fires) can be put out only by dry chem. Dry chem is the only extinguisher that does all three of them however it is not recommended on Class A fires because it is not useful in putting out sparks.

The Enterprise mine, a copper ore mine located at Mt Isa Mines, is currently Australia's deepest mine. Its shaft is 1,900m deep.

It works on the following principles : (i)thermionic emission (ii)deflection of the electron beam by the electric and magnetic field (iii)fluorescence produced by the electron beam on a fluorescent screen

Bauxite is the most important ore of aluminum.

Check out this article on Water-Rockets.com that describes a simple soda-bottle rocket with parachute recovery system:

http://www.water-rockets.com/article.pl?101

The article include photos and a video showing the rocket in action.

Good luck!

if you mean the conduction of electricity then....

all non-metals do not conduct(excluding carbon which does conduct)

all metals conduct although some conduct better than others

It usually takes between 7 to 10 years of continuous experience in the same field.

Achiving a Ms in business or management wont get you there faster buy it may give you an edge over other applicants with the same working experience.

If you have an older one with a standing pilot light, one that is on all the time, you probably can. I've been told that the newer ones with electric ignition are a problem. They have electronic parts that don't like generators and will short out the circuit boards. This is from a Heating and Air guy so I tend to believe it.

A concave Hexagon is that hexagon which has one of its internal angle greater than 180 degrees. It can have 8 diagonals. As compared to regular hexagon (Also convex hexagon) it has one less number of diagonals. This is because one line joining two of its vertices (that are at the end of sides forming >180 angle) fall outside the hexagon.