car engines?

from what other material,other than metal(iron steel etc),can a car engine be manufacured?

If you buy a motorcycle for transportation *only* the motorcycle is far cheaper and safer than a car -- just cold and wet and uncomfortable, if you care, which is the only good reason for getting a motorcycle. If you buy a motorcycle for fun, going crazy, wheelies, speed, carving the canyons, etc. -- yes, motorcycles are *very* dangerous. As is *ANYTHING* you do for fun. Fun is dangerous. If it is not dangerous it is not fun. OK? Got it? Fun is Dangerous, not just motorcycling. But. Unless you are not having fun, life is not worth living.

My parents said the same thing, my dad always forbade me to ride a motorcycleI'm 28 now, and just bought one.And I LOVE it. Yes, obviously they CAN be very dangerous as you're protected from absolutely NOTHING. And if you do get in a serious accident, it can easily put you in a wheelchair or worse. But if you're responsible and respect the machine, and don't get careless and showoff, you should be fine, and you'll be glad you went for it. It's an addicting experience. Just be smart and never forget how vulnerable you really are on one.

And don't forget the holy grail. ceramics. Since your efficiency is dictated by Qh / Ql if you can raise your Qh efficiency goes up. Metals melt/deform. Ceramics don't. But machinability makes it impractical.

Constant research is going on in this field to improve the thermal efficiency of an internal combustion engine. Ceramics are the main area of study however while a ceramic cylinder will not expand with heat the surrounding support metal does therefore it presents a sealing problem. Carbon reinforced materials are also being used to try and make the engine lighter however the material must be able to withstand the explosive impact of the combustion of the fuel and the forces that result. A lot of this research is being carried out in Japan

Aluminum plays a big part in engines today. Alloys with lighter weight and resistance to heat work well. Side note: Check out the Crosley, it had a water jacket around the cylinders that was soldered copper sheets!!!

If you buy a motorcycle for transportation *only* the motorcycle is far cheaper and safer than a car -- just cold and wet and uncomfortable, if you care, which is the only good reason for getting a motorcycle. If you buy a motorcycle for fun, going crazy, wheelies, speed, carving the canyons, etc. -- yes, motorcycles are *very* dangerous. As is *ANYTHING* you do for fun. Fun is dangerous. If it is not dangerous it is not fun. OK? Got it? Fun is Dangerous, not just motorcycling. But. Unless you are not having fun, life is not worth living.

My parents said the same thing, my dad always forbade me to ride a motorcycleI'm 28 now, and just bought one.And I LOVE it. Yes, obviously they CAN be very dangerous as you're protected from absolutely NOTHING. And if you do get in a serious accident, it can easily put you in a wheelchair or worse. But if you're responsible and respect the machine, and don't get careless and showoff, you should be fine, and you'll be glad you went for it. It's an addicting experience. Just be smart and never forget how vulnerable you really are on one.

And don't forget the holy grail. ceramics. Since your efficiency is dictated by Qh / Ql if you can raise your Qh efficiency goes up. Metals melt/deform. Ceramics don't. But machinability makes it impractical.

Constant research is going on in this field to improve the thermal efficiency of an internal combustion engine. Ceramics are the main area of study however while a ceramic cylinder will not expand with heat the surrounding support metal does therefore it presents a sealing problem. Carbon reinforced materials are also being used to try and make the engine lighter however the material must be able to withstand the explosive impact of the combustion of the fuel and the forces that result. A lot of this research is being carried out in Japan

Aluminum plays a big part in engines today. Alloys with lighter weight and resistance to heat work well. Side note: Check out the Crosley, it had a water jacket around the cylinders that was soldered copper sheets!!!