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One should wear safety glasses to prevent things from getting into the eyes. Another reason to wear safety glasses is so that heat and sparks don't irritate them.
I think you are referring to warning agents. Smells added to things like natural gas for safety reasons; otherwise, you would not be aware of a leak.
Cars are designed to have a top speed for safety reasons. An engine can only spin at so many RPMs before things start to fly off or destroy themselves. The same holds true for the rest of the moving parts on a car. Tires can only handle so many RPMs before the rubber starts to come apart. The faster things spin the greater the centrifical force.
the safety things in a car ;)
There are many reasons why things happen. There are also many reasons why there are many things that exist in the world.
safety Than in science
Vehicle safety is so complex because vehicles are more complex now. It takes more ways to keep us safe, when we expect our car to do things it has never done before in the past.
It burns things
It holds things closed.
you can go on the internet and type in what are the possible physical safety problems for protecting physical safety and it comes up with random things
HI Cars changes for various reasons. Safety, stability, economy and how it looks have changed the car since Henry Ford started his Assembly line. Now things like aerodynamics, fuel conservation and robotic building of car has seen many changes to the build quality, safety and look of modern cars.