What is Automobiles: Definition and 17 Discussions

A car (or automobile) is a wheeled motor vehicle used for transportation. Most definitions of cars say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people rather than goods.Cars came into global use during the 20th century, and developed economies depend on them. The year 1886 is regarded as the birth year of the modern car when German inventor Karl Benz patented his Benz Patent-Motorwagen. Cars became widely available in the early 20th century. One of the first cars accessible to the masses was the 1908 Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the US, where they replaced animal-drawn carriages and carts, but took much longer to be accepted in Western Europe and other parts of the world.Cars have controls for driving, parking, passenger comfort, and a variety of lights. Over the decades, additional features and controls have been added to vehicles, making them progressively more complex, but also more reliable and easier to operate. These include rear-reversing cameras, air conditioning, navigation systems, and in-car entertainment. Most cars in use in the early 2020s are propelled by an internal combustion engine, fueled by the combustion of fossil fuels. Electric cars, which were invented early in the history of the car, became commercially available in the 2000s and are predicted to cost less to buy than gasoline cars before 2025. The transition from fossil fuels to electric cars features prominently in most climate change mitigation scenarios, such as Project Drawdown's 100 actionable solutions for climate change.There are costs and benefits to car use. The costs to the individual include acquiring the vehicle, interest payments (if the car is financed), repairs and maintenance, fuel, depreciation, driving time, parking fees, taxes, and insurance. The costs to society include maintaining roads, land use, road congestion, air pollution, public health, healthcare, and disposing of the vehicle at the end of its life. Traffic collisions are the largest cause of injury-related deaths worldwide.Personal benefits include on-demand transportation, mobility, independence, and convenience. Societal benefits include economic benefits, such as job and wealth creation from the automotive industry, transportation provision, societal well-being from leisure and travel opportunities, and revenue generation from taxes. People's ability to move flexibly from place to place has far-reaching implications for the nature of societies. There are around 1 billion cars in use worldwide. Car usage is increasing rapidly, especially in China, India and other newly industrialized countries.

View More On Wikipedia.org
  1. M

    Titanium Nickel Alloy: Strength & Durability

    Also how bullet proof is it? I know it is a titanium nickel alloy so I’m guessing it may be strong with the titanium in it.
  2. M

    Automotive Why flywheels are needed in automobiles?

    Why do we need a flywheel in an automobile? Most people say that an engine produces power only in one stroke.so a flywheel is used to absorb a part of that energy during the power stroke and help the engine to get through the other three strokes.But why can't that energy be stored in the mass...
  3. psvtrajan

    Electromagnetic Engine: Can It Power an Engine?

    Is there any engine which works using electromagnet?
  4. V

    What Are Some Ways to Combine Aerospace and Mechanical Engineering Interests?

    My name is Vivek And i have just joined this forum.I am mechanical engineering student but i have great interest in aerospace.I want to learn more and more about aerospace and mechanical.I can made simple aeromodelling projects side by side just to enhance my aerospace engineering knowledge.Hope...
  5. S

    Discover the Types of Earthing in Automobiles - Expert Insights and Tips

    < Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown > HEY guys ; I want to know the types of EARTHING done in automobile . Anybody having any idea ?
  6. R

    Calculation of friction coefficient between wheel and road

    Hi all, I need to calculate the friction coefficient between road and the tyre of the car. I came across few answers like which solves as from the following torque equation. Engine torque = braking torque + acceleration troque + Inertial torque + drag torque + rolling resistance. For...
  7. K

    Greenhouse Effect and Pets in Automobiles

    I have a question about the greenhouse effect that I hope you all can answer. My neighborhood went bonkers last night b/c an older woman left her dog in her car at 10:30 pm to do some grocery shopping. It was dark, but it was 84 degrees. I know this would be extremely dangerous if the...
  8. L

    Questions about static electricity in automobiles

    So, I don't want to disclose why I want to know about this because its to do with a friends invention and it would be unfair to publish too much information without his consent. That's my disclosure so to speak. I'm interested in how static electricity is managed in vehicles. I remember...
  9. C

    Why are gas turbine engines not used in automobiles?

    barring a few exceptions i read that it is because they aren't effecient at small scale. can someone elaborate on that? also, would even smaller turbines need some time to start up?
  10. S

    Automotive Automobiles - why not to remain in 1st gear?

    Automobiles -- why not to remain in 1st gear? why not to remain in 1st gear ??
  11. H

    Vehicle head light automation in automobiles

    Homework Statement Hi, I'm hari. I'm doing final yr B.E. I'm trying to do the headlight automation in automobiles. bt i dono by which device i can do it efficiently?? in my project i wan to sense the light and if the amount of light exceeds the particular value the vehicle wants to dim the...
  12. J

    Prices of automobiles in the US as compared to

    Some days ago my friend who lived in the US was telling me that he was thinking of buying a used Mercedes car. That car was in a very good condition. The price was around $3,500. It's so cheap when compared to Indian market. I think that automobiles' rates in the US are quite less as compared to...
  13. S

    An Automobiles acceleration and speed

    Homework Statement At highway speeds, a particular automobile is capable of an acceleration of about 1.6 m/s2. At this rate, how long does it take to accelerate from 83 km/h to 101 km/h? Homework Equations a = Change in Velocity / Change in time The Attempt at a Solution How do...
  14. T

    Using Water as Fuel in Automobiles

    What about using water as fuel in Automobiles, recently I've seen in local TV channel of our country, Genepax Co Ltd of Japan built a new car that uses water as fuel. The system produces Hydrogen from water. For more detail, I used this link, [crackpot link deleted] Welcome for More...
  15. R

    Comparing Distances in Sport & Automobiles

    1. A sport car starting from rest can attain a speed of 60 mi/hr in 8s. A runner can do a 100-yd dash in 9.8s. Assume that the runner is moving with a constant speed and that the car starts at the instant he passes it. How far will both travel until the car overtakes the runner? (convert...
  16. W

    If gravity were to double, what would that mean for automobiles?

    I'm on another forum debating the topic, and it's been quite a while since I've taken a physics course. Say, for whatever reason, the acceleration of gravity doubled. So now the vehicle would have twice the weight, but the same mass. How would that affect the acceleration of an automobile on...
  17. ZapperZ

    VOTE - Planes, Trains, and Automobiles.

    Another terrific set of pictures by everyone involved. Well done! This will be another tough contest to vote on. 1. GeoMike http://www.mcschell.com/cog.jpg 2. larkspur http://home.comcast.net/~larkspur2020/soaring.JPG 3. Janus...