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Engineering

Engineering is an art and profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.

5,839 Questions

How did the helicopter change the world?

Helicopters revolutionized transportation, search and rescue operations, and military tactics by providing a vertically lifting aircraft. They have greatly improved access to remote areas, reduced travel times, and saved countless lives in emergency situations. Helicopters also play a crucial role in various industries such as tourism, healthcare, and law enforcement.

How many people die on roller coasters each year?

On average, about 4-5 people die worldwide from incidents related to roller coasters each year, according to the International Association of Amusement Parks and Attractions. Despite these tragic incidents, roller coasters are generally considered safe, with millions of riders enjoying them annually.

What is the rate of knowledge expansion in the world?

The rate of knowledge expansion in the world is accelerating exponentially due to advancements in technology, increased connectivity, and the sharing of information. It is estimated that human knowledge is currently doubling every 12 to 13 months, and this rate is expected to continue increasing in the future.

What is the system called that supports the sides of an excavation?

The system that supports the sides of an excavation is called a shoring system. It is designed to prevent the walls from collapsing and ensure the safety of workers in the excavation site. Shoring systems can be temporary or permanent, depending on the construction project.

What daily life would be like for a pyramid builder?

Working, working ,working. always working.

Daily life would be much like people work today on huge building projects. Like today, it would have required workers for many different sets of skills to accomplish the job, many of which would be skilled jobs. They would need engineers, equipment suppliers, quarry labor, transportation, stone cutters and finishers, site laborers and supervisors. There is evidence that in some locations, villages for workers were built right next to the worksites, sometimes accommodating the workers' families. People could walk to their worksite but food and other necessities for life would need suppliers and vendors in proximity to the site also.

Who is Justus Von Liebig?

Justus von Liebig (12 May 1803 -- 18 April 1873) was a German chemist ChemistA chemist is a scientist trained in the science of chemistry. Chemists study the composition of matter and its properties such as density, acidity, size and shape. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component...

who made major contributions to agricultural AgricultureAgriculture is the production of food and goods through farming and forestry. Agriculture was the key development that led to the rise of human civilization, with the husbandry of domesticated animals and plants creating food surpluses that enabled the development of more densely populated and...

and biological BiologyBiology is the natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy...

chemistry ChemistryChemistry is the science concerned with the composition, behavior, structure, and properties of matter, as well as the changes it undergoes during chemical reactions...

, and worked on the organization of organic chemistry Organic chemistryOrganic chemistry is a discipline within chemistry which involves the scientific study of the structure, properties, composition, reactions, and preparation of chemical compounds that contain carbon...

. As a professor ProfessorThe meaning of the word professor varies. In some English-speaking countries, it refers to a senior academic who holds a departmental chair, especially as head of the department, or a personal chair awarded specifically to that individual...

, he devised the modern laboratory LaboratoryA laboratory is a facility that provides controlled conditions in which scientific research, experiments, and measurement may be performed. The title of laboratory is also used for certain other facilities where the processes or equipment used are similar to those in scientific laboratories...

-oriented teaching method, and for such innovations, he is regarded as one of the greatest chemistry teachers of all time. He is known as the "father of the fertilizer FertilizerFertilizers are chemical compounds applied to promote plant and fruit growth. Fertilizers are usually applied either through the soil or by foliar feeding...

industry" for his discovery of nitrogen NitrogenNitrogen is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere.Many industrially important...

as an essential plant PlantPlants are living organisms belonging to the kingdom Plantae. They include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The scientific study of plants, known as botany, has identified about 350,000 extant species of plants, defined as seed plants,...

nutrient NutrientA nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment. Nutrients are the substances that enrich the body. They build and repair tissues, give heat and energy, and regulate body processes...

, and his formulation of the Law of the Minimum which described the effect of individual nutrients on crops.

What is the specification of welding electrode E6013?

The E6013 welding electrode is a versatile, all-purpose electrode with a coating that provides smooth arc characteristics and good penetration. It is commonly used for general welding applications on mild steel and is known for producing clean and minimal spatter welds. The E6013 electrode can be used with both AC and DC welding machines.

How do you work out stratified sampling?

If a sample of size s is to be taken from a population of size n, then every n/s member of the population is tested. The starting point is chosen at random.

If we want to test a 100-strong sample from a population of 2000, we test every 2000/100 = every 20th member. We use random numbers to determine the starting point.

How do you kill your taste buds?

There is no safe or recommended way to intentionally kill taste buds. Over time, taste buds can regenerate on their own if damaged. However, certain factors like smoking, excessive alcohol consumption, and extreme temperatures can temporarily impair taste buds. If you have concerns about your sense of taste, it is best to consult a healthcare professional.

What is a CRO?

A CRO stands for Conversion Rate Optimization. It is the process of improving the performance of a website or marketing campaign to increase the percentage of visitors who take a desired action, such as making a purchase or signing up for a newsletter. CRO involves analyzing data, conducting experiments, and making strategic changes to optimize the user experience and drive conversions.

What is a complex machine?

A complex machine, also known as a compound machine, is a machine that is a combination of several simple machines.

A simple machine is defined as a machine that makes work easier by modifying or transmitting force or motion.

A simple machine would be a wheel and axle or a wedge and jackscrew.

A complex machine would be a car or a drill.
Machine - is a device that helps us do work (work is a force that acts on an object to make the object move. To get work, you multiply force by distance)

A simple machine - is a tool or device made up of one basic machine (there are 6 simple machines screw, ramp/inclined plane, wedge, pulley, wheel and axele, and levers.)

ex. of simple machines are: (screw - screw, hose nozzle, etc.) (inclined plane - slide, ramp etc. ) (wedge -chisel, knife, etc.) (pulley - crane, flagpole, etc.) (wheel and axle - door knob, steering wheel, bicycle wheel, etc.) (Lever - 1st class lever: see -saw, 2nd class leer: wheelbarrow, 3rd class Lever: hockey stick, broom, etc.)

a Complex Machine - is a system in which simple machines all work together, parts of a complex machine that have just one function are called subsystems and often contain a simple machine.

ex. of complex machines can be as simple as scissors, or as complicated as a lab top

A complex machine is really 2 or more simple machines in one machine

ex. Car or a bicycle
Complex Machine - is a system in which simple machines all work together, parts of a complex machine that have just one function are called subsystems and often contain a simple machine. ex. of complex machines can be as simple as scissors, or as complicated as a lab top

A complex machine is really 2 or more simple machines in one machine

ex. Car or a bicycle


all the six machines can put together to make

big machine.

What is a water engineer called?

Water engineer is a generic title given to engineers who specialise in water-based projects; many have a civil engineering or environmental background. They may work with a variety of different liquids but generally deal with the provision of clean water, disposal of waste water and sewage, and prevention of flood damage.

What is the hvac?

HVAC stands for Heating, Ventilation, and Air Conditioning. It refers to the technology and systems used to control the temperature, humidity, and air quality in indoor spaces. HVAC systems are commonly used in homes, offices, and other buildings to provide comfortable and healthy living or working environments. They can include components such as furnaces, air conditioners, heat pumps, ventilation systems, and thermostats. HVAC systems play a crucial role in maintaining a comfortable temperature and ensuring proper air circulation and filtration.

Difference between product development and product re-engineering?

Probably a rather philosophical question, but if you want to make a quote it is the difference between an architect and a construction worker. Engineers design a framework and decide how the building works in its entirety and how it interconnects with the outside world and programmers execute the master plan, putting up the walls and installing the plumbing and electricity.

What are the best geothermal companies in the United States?

The best geothermal companies in the country are the ones that have been around long enough to establish a long-term track record of profits, safety, and environmental compliance. The big operators, such as Ormat, Calpine Corp., Enel, Caithness/COC, and California Energy, can be counted on to remain in the geothermal industry over the long haul. All of them are dedicated to producing energy in an environmentally-friendly fashion. There are a number of small start-up companies out there trying to get in the game, and though they may have good prospects, longterm success has proven historically difficult and the initial costs are invariably extremely high. Time will tell the tale with them. However, the industry has seen large numbers of little geothermal companies come and go, and the big guys (Ormat, in particular) will gobble the little guys up if given the chance.

How long is the worlds longest noodle?

The longest noodle in the world measured 3,084 meters or approximately 10,119 feet. It was achieved in China in 2017.

What is the largest rolled earth dam?

It's in China.

The second or third largest is the Oahe Dam located north of Pierre, South Dakota.

Where is the worlds longest elevator and how long is it?

Gold mines in South Africa go a few kilometers below the surface. The deepest mine at the moment is the Mponeng Mine in the Orange Free State. The depth of the mine is well over 3000m from the surface and is getting deeper. The lift itself decends 3037m to a point 1200m below sea level. It takes 4 minutes.

What is munocha?

Munocha is a village in Ancuabe district in Cabo Delgado province in Northeastern Mozambique............................

Free GATE study material download for instrumentation engineering?

You can find free GATE study material for instrumentation engineering on websites like the official GATE website, online education platforms like Coursera or edX, and educational YouTube channels. Additionally, you can check for study material in public online repositories like GitHub or academic forums. Make sure to verify the credibility and quality of the study material before downloading.

What is the speed ratio of a gear with 36 teeth meshed to a gear with 20 teeth?

What is the speed ratio of an input with 36 teeth meshed to a gear with 20 teet?

What technical engineer jobs are open?

Tons of them! Everything from Aerospace, to Agricultural and Biomedical, to civil, computer, and electrical engineering jobs. If that's not enough, there is also environmental and solar engineering jobs.

Advantages and disadvantages of Value-added network?

Advantages:

  1. Faster transaction processing
  2. Better Communication
  3. Cost of Implementation
  4. Ongoing Network Support
  5. Safety and Reliability

Disadvantages:

  1. Cost and Installation
  2. Double Edged sword of VAN use.