Engineering

Nowadays, GM food (Genetically Modified) is in practically everything. No it does not harm humans, animals or our ecosystem. it is helping it along by exterminating heretical diseases found in plants (IE: a bitter fruit) and eliminates weak or the runt plants to stop them from reproducing.

any material that will not allow electricity to pass through it. rubber, plastic,

some electrically conductive materials are metals, esp. gold, water, neon gases

insulators, glass, paper :)

This is a problem of chemistry: to create new synthetic/artificial products.

Yes, in fact for years Russian submarines were made of titanium. It is stronger than steel and non-magnetic.

A boat made of titanium would be very strong and light also prohibitively expensive. Aluminium is much more common in marine construction.

1 ata = 1 technical atmosphere absolute = 1 kgf/cm2

A turbine is a machine that has a rotor of some sort that spins as a reaction to the flow of a fluid of some kind. A generator can be one of may things, but we often associate that term to a piece of equipment that converts mechanical energy into electromagnetic energy, or electricity. That said, the turbine could be connected to the generator to produce electricity from mechanical energy. The turbine is all about mechanical energy, and the generator converts mechanical energy into electric energy.

Oil has the higher BTU rating

Depends. If it is Liquified Nat. Gas then it has the higher rating.

Being a salaried employee a Mechanical Engineer only gets paid for 8 hours of work a day, no matter how many hours he actually works.

While in most cases he does only work 8 hours in a day, when schedules are slipping or other problems crop up he will be expected to work as much as necessary to resolve it as soon as possible. I have known a few engineers that worked more than 20 hours a day for a few weeks to resolve a particularly difficult issue.

• The 10 Golden Rules of Systems Analysis

• Rule 1: There Always Is a Client

• Rule 2: Your Client Does Not Understand His Own Problem

• Rule 3: The Original Problem Statement is too Specific: You Must Generalize the Problem to Give it Contextual Integrity

• Rule 4: The Client Does Not Understand the Concept of the Index of Performance

• Rule 5: You are the Analyst, Not the Decision-Maker

• Rule 6: Meet the Time Deadline and the Cost Budget

• Rule 7: Take a Goal-Centered Approach to the Problem, Not a Technology-Centered or Chronological Approach

• Rule 8: Nonusers Must be Considered in the Analysis and in the Final Recommendations

• Rule 9: The Universal Computer Model is a Fantasy

• Rule 10: The Role of Decision-Maker in Public Systems is Often a Confused One

Copper can be drawn into wire because its elastic strength is lower than its tensile strength. If it were the other way around the copper would be brittle and break from being drawn.

To draw wire from copper it is usually annealed first (heated to reduce its elasticity) then drawn into rods through a thimble, then progressively drawn though smaller and smaller dies to reduce its diameter to the preferred gauge or size. As the copper is drawn through the dies it heats up from friction and actually needs to be cooled to prevent it from breaking, as this annealing actually reduces the tensile strength of the copper as well.

*elastic strength is the strength of material that resists permanent deformation of the material. Tensile strength is the resistance to the material being pulled apart.

gravity can be simulated with the use of an advanced gravity simulator which uses acceleration to equal the weight of the body

Imperial and metric systems of measurement can be interpreted by a metric conversion table and chart. The measuring scheme is available from various online companies like French Property Company.

There are several things that you should do first before using a new type of Vernier caliper. You should ensure that you fully understand how it works and test it elsewhere before using it in the real project.

An arch under a bridge or aqueduct provides a very strong structure. The load of the structure is transferred by the arch to the pillars. As the load increases, so the arch becomes compressed more, making the structure more rigid.

Because they used steam engines, which rely on fire to turn water into steam to power pistons which makes the train move.

Also, while in use some of the steam is always released, creating big steam clouds around the locomotive.

Yeah you can. For sure as Avionics is nothing but Electrical systems in Aircrafts.

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A dam is a big wall to stop water getting through to certain places. It is also used to irrigate water, and some dams, to make hydroelectricity. Hydroelectricity is electricity that comes from water. It is a environment friendly way of getting energy or power.

Dams are, of coarse, found mostly on rivers though always on water of some kind. Some are huge and some are smaller. For example, on the Euphrates River, the Ataturk dam, it very big and is used for quite a few things. It is found in Southeastern Turkey and is the 5th biggest dam in the world.

A Ton is the measurement of the amount of heat required to melt one ton of ice. It is also 12,000 BTU (British Thermal Unit) So the Ton is a measurement of the amount of heat that the refrigeration system can remove.

The application of science is called Technology, so applied medical science is called medical technology.

Medical technology consists in the application of knowledge, discovered by medical scientists, and others, as solutions, to specific medical problems or needs.

Elements that are paramagnetic can act like iron when placed in a magnetic field. This is because of the presence of unpaired electrons in their valence shell. For example, liquid oxygen can have some magnetic properties (attracted to the magnet) when poured between the poles of a magnet.

The job of a structural engineer is to deal with the analysis and design of the structurre. They choose the materials that must support the loads and resist tension and compression. The structure must be able to withstand the forces, weather and some natural disasters.

Wow! The list would be pretty long if we get down to basics.

1. Fiberglass (for P.C. board)

2. Lead and Tin (solder)

3. Silver (connector in IC chip)

4. Plastics (assorted uses)

5. Copper

6. Arsenic (n material in IC chips)

7. Phosegene gases (for p material)

8. Hydrofluoric acid (was used to make but not in unit)

9. cleaning solvents (again in manufacturer)

10 Silicon

11. Tin (back of unit)

12. Lithium (battery)

13. gold (terminals)

14. glass

15. Photo resist (to make IC)

16. HMDS (make Photo resist stick)

17. POCOL gases (chem deposition for IC)

18. Several steel molds to stamp cases

19. power (for furnaces, stamping equipment , lights etc)

That is off the top of my head. Total is probably 2000 different elements and materials.