... next focal point to consider when one is deciding whether to buy a dirt bike or a street bike, is engine type. The dirt bike comes with a two-stroke engine. The two-stroke engine takes a mix of oil and gas and ignites it in the cylinder, providing the power and lubrication all in one motion. On the other hand, the street bike comes with a four ... stroke engine; this is similar to a car engine, but much smaller. In this type of engine, only the gas is burned, and the oil is reused again and again. These are ... ...

• Word Count: 610
• Approx Pages: 2
• Grade Level: High School

... American cars have been working on fuel efficiency cars in the past years they cannot beat the advancements in the foreign engines. Foreign cars provide power that every car needs and better gas mileage. The most fuel efficient American car is the 2011 Ford Fusion which gets 41 miles per gallon ... Having an American car is a totally different experience on the other hand. They only have benefits in certain situations. American cars are known for the power that they have this is why they are mostly used for utility work. On construction sites, you will only see American trucks, constructi...

• Word Count: 1937
• Approx Pages: 8
• Grade Level: High School

... Vinci and Isaac Newton. In 1769 the very first self-propelled road vehicle was a military tractor invented by French engineer and mechanic Nicolas Joseph Cugnot . He used a steam engine to power his vehicle, built under his instructions at the Paris Arsenal by mechanic Randolph Brezin. It was used by the French Army to haul artillery at a whopping speed of 2.5 mph on ... only three wheels. Although it had to stop every 10-15 minutes to build up steam power it was still carrying its own weight. The steam engine and boiler were separate from the rest of the vehicle and placed in the front...

• Word Count: 1295
• Approx Pages: 5
• Grade Level: High School