What is the purpose of the horn in a car, and when can we use it?
413113
I'm too respectful of people to honk , so it pretty much never comes into use.  However, the other day there was some lady doing her make up while driving on the freeway, driving about 45 in a 55.  I tolerated this for 2 miles (stuck behind her), but the final straw was when she leaned over to get something from the passenger's side floor.  I honked at her for 30 seconds, she swerved and almost wrecked.  Idiot.
442974
I agree completely with you. There are a lot of hand-free devices if you want to use cell phone during driving. It's dangerous and in many countries is already illegal.
848221
its brass because its made of brass.  it's not a woodwind because it doesn't have a reed....its just a plain wind instrument because you blow into it
1044443
windows long horn probably
722461
horns must not be a symbol of evil, because the ram's horn (called a shofar) is blown on one of the holiest days of the Jewish year, and it is certainly not considered evil in that context.\n\nBut I think the issue here is that you would most likely freak people out if you went about with corral horns on your head.  I don't think God would really be all too thrilled about you freaking others out!
161096
Because most of them are going brain dead and don't realize that 1. It's a nuissance to the community, 2. It's a danger to themselves, their passengers, and other drivers because they can't hear emergency vehicles to get out of the way or other cars they are in danger of hitting, and 3. Playing the bass that loud in a car literally rattles the car apart costing them money to fix it repeatedly in the long run (not to mention the damage it does to surrounding buildings).  It's a shame that people who put these speaker systems in their vehicles haven't been taught better by their parents of the danger involved to their hearing, safety, and how ignorant it is toward others.  I've even seen mothers (mostly poor) driving around with their young children in vehicles with the sound so loud that their children now have hearing loss.  And the police claim it would take up too much of their time to go after these idiots to give them citations (in our area it's $100/offense--and no one has been cited).  The police in our area also realize that most of the people performing such a disservice to the community are also drug dealers who use loud car stereo systems to announce they are in the community to any buyers in ear-shot.  How dumb can you get?
160454
Same theory as a car muffler.  Provide an enclosed space for the gasses to expand with baffles to slow them down.
239282
Because it is a Corvette
13175
The sound will reach the car in front of you.  Although it may seem as though it would not, considering that you are already traveling at the speed of sound, therefore you may think the sound waves go as the same speed as your car therefore not traveling any faster than you are and not getting to the car in front of you.  However, this is not the case.  This can be explained using Einstein's theory of relativity.  Einstein describes "frames of reference" and in your frame of reference, you are not moving; everything else is moving.  Everything in your car is stationary relative to everything else, this is why you don't feel like you're moving, and if you throw a book sideways, it doesn't fly backwards with the speed your vehicle is moving, this is because the car, yourself, and the book are all moving with the same speed your car is moving. They are all stationary relative to each other. When the sound waves are created, they move in all directions at the speed of sound (331 m/s), so in your frame of reference, they would be moving at 331 m/s away from the car in all directions.  This means from the frame of reference of a person standing outside of your car, the sound waves would actually appear to be moving at twice the speed of sound.  This is just like if you threw a ball forward out from the car at 15 m/s, it would appear to an outsider to be moving at that speed plus the speed of sound(well in a vacuum anyway, or before air resistance took over) To use a better example of these frames of reference, you know that the earth is rotating.  It is rotating at 1070 mi/hr at the equator, yet it seems not to be moving at all, it is our frame of reference when we are standing 'still.' the speed of sound is no different traveling in different directions on the earth because of this rotation.\n\nand yes, he would probably give you the finger. I mean, he is going at the speed of sound, how impatient are you?
266659
On my ford t-bird, if you lift the piece of plastic where the horn is located on the steering wheel, it comes of and you could easily stash a half pound back in there. Of tobacco of course, (the yahoo censors are every where)
38637
Not only is it rude and disruptive in alot of places it is illegal now.  Where I am originally from on your third ticket for that they can confiscate your car.  When your car sterio is so loud I can hear it in my apartment from the road IT'S TOO LOUD!
328292
Yes, the radio is also going to be traveling at the speed of sound because it is in the car or whatever you are in. Therefore the radio is stationary relative to you, so it makes no difference how fast you are going. If you were going away from the radio you would not be able to hear it.
287818
UNFORTUNATELY IT WORKS, IS DIRECTLY CONNECTED WITH A SPEED SENSOR CONNECT TO THE OFFICER'S VEHICLE.  IT WORKS APPROACHING OR ON-COMING.  ANTENNA'S ON VEHICLES ARE DIFFERENT BUT DOWN HERE WE USE A ANTENNA WHICH APPEARS TO BE A SPOTLIGHT HOOKED OVER THE TOP OF THE WINDOW GLASS.  IT MAY BE AIMED UP OR DOWN THE ROAD.\n\nWORKS AS LONG AS THE VEHICLE IS IN SIGHT!\n\nDRIVE CAREFUL HEAR !
4133
Yes. The car acts as a Faraday cage, so the current goes around the surface and does not harm the occupants.
1097429
I know just what you mean! I think it's for those people (nearly always guys...you noticed?) who have flash penis-substitutes - they boost the bass beyond human endurance for two reasons: they like to feel that throb, and they need you to notice them.\n\nWhy on Earth anyone needs a hifi system that would do a medium-sized concert hall proud in a car is beyond me.....call me old-fashioned.....lol
1012553
there are several traffic laws that can fit this situation  \nfor loud mufflers there is a traffic laws that requires even bikes to \nhave a muffler that does not emmit a unusal sound. for loud radio\nmost cities have a ordinance that make it against the law. i will write a citation most of the time if the situation calls for it . i will stop a loud bike as fast as i would a bassin vehicle . if the driver want attention he/she will get it . most of the time a warning but if required a citation . yes even a bike will be stopped.
587938
A fog horn is made out of liquid nitrogen, air compressed into a tin or aluminum bottle, with a plastic horn used to channel the sound. Its called a fog horn because when you turn it upside down and press down on the part you use to make it sound, the liquid nitrogen comes out looking like fog