Project Mercury, the first manned U.S. space project, became an official NASA program on October 7, 1958. The Mercury Program was given two main but broad objectives: 1. To investigate man’s ability to survive and perform in the space environment and 2. To develop basic space technology and hardware for manned space flight programs to…
Comets are small, fragile, and irregularly shaped. Most are composed of frozen gas. However, some are composed of frozen gas and non-volatile grains. They usually follow very strict paths around the sun. Comets become most visible when they cross the sun. This also applies to people who view comets with telescopes. When a comet gets…
Neptune is the outermost planet of the gas giants. It has an equatorial diameter of 49,500 kilometers (30,760 miles) and is the eighth planet from the sun. If Neptune were hollow, it could contain nearly 60 Earth’s. Neptune orbits the Sun every 165 years. It has eight moons, six of which were found by Voyager…
Mercury is the closest planet to the sun. Its average distance from the sun is approximately fifty-eight million km and it’s diameter is 4875 km, making it the second smallest planet in our solar system. Its volume and mass are about 1/18 that of the earth and its average density is approximately equal to that…
Houston, we have a problem. The Apollo 13 mission was launched at 2:13 p.m. EST, April 11, 1970 from launch complex 39A at Kennedy Space Center. The space vehicle crew consisted of James A. Lovell, Jr. commander, John L. Swigert, Jr., command module pilot and Fred W. Haise, Jr. lunar module pilot. The Apollo 13…
The Cyclops were unique and unusual mythical people. They had very interesting lives. They had an unusual beginning and they had an unusual lifestyle. Also, the Cyclops appeared to be completely different when described by opposing viewpoints. Overall, the Cyclops were an unconventional race in mythical legends. The Cyclops had an intriguing origin. They were…
“Guards, Knights, Squires; prepare for battle!” Hollers one of the king’s noble knights. The rumbling thunder of horses trotting across the wooden mote bridge echoes throughout the castle. Brave knights gallop their horses into the foggy mist where swords and shields smash, the sounds of their armor and their striking metals echo across the land…
The Crusades were military expeditions planned and carried out by western European Christians. The crusades started around 1095. The purpose of these crusades was to overtake and gain control of the Holy Land from the Muslims. The Holy Land was Jerusalem and the Christians believed that gaining control of it was their fate. The pope…
Many social changes that were addressed in the 1960s are still the issues being confronted today. The ’60s was a decade of social and political upheaval. In spite of all the turmoil, there were some positive results: the civil rights revolution, john f. Kennedy’s bold vision of a new frontier, and the breathtaking advances in…
The engine is the vehicle’s main source of power. The engine uses fuel and burns it to produce mechanical power. Chemical Energy converted into Mechanical Energy The heat produced by the combustion is used to create pressure which is then used to drive a mechanical device. Internal vs External Prior to the 20th century, the…
In the modern engine, the lubrication system is more vital than every due to the very low tolerances and higher temperatures that the engines must perform at. System Components Oil pan – holds the oil required for the system, provides a means of draining the oil through the oil plug and houses the oil pump…
There are two types of engines found in nearly every car and truck on the road. They used what is called four strokes reciprocating internal combustion engine which is a high horse powered type of engine. Both gas and diesel engines use this type of application. A third type called a two stroke engine, found…
