Monday, December 22, 2008

Interstellar Travel

Interstellar travel is a journey of a spacecraft between two or more stars, through the Interstellar space. the journey may bringing a discovery of new habitable planets and a new resources for a mankind.

But the fact, the journey is completely just a fiction and only displayed on the Sci-Fi movie, because we don't have such advance technology yet. The journey is require a highly advance technology such as the propulsion system, the navigation system, the communication system and other system that needed to support the human life out there.

The propulsion of the spacecraft that we already have is not enough to reach the minimum speed that needed to send the vehicle to its destination within the desired time. The chemical propulsion that we have now is just burned out in few seconds during the launch of the spacecraft. what a very short moments. in fact the thrust in that time is will never move the spacecraft in the interstellar voyage. imagine what this kind of thrust can do to a such spacecraft that attempting an interstellar voyage?


Thursday, December 18, 2008

The Earth on Danger

Yesterday, i just saw a movies entitled "The Day the Earth Stood Still" which is told me about the destruction of the earth because of human behavior that keep using the technology that have a negative effect of the earth environment such as the using of fossil fuel, the CFC gasses and other thing that make the global warming is going to be more worst.

For me, this movie is one way to bring awareness of the importance of keeping the human earth save from destruction due to global warming.

So, we as human that have to protect our earth from the destruction. cause the global warming is growing rapidly everyday. can you imagine what will happen if the earth is sustaining heavy damage for a long time? do you ever heard about the ice in the north pole that is getting more thinner every seconds? yes that is the answer. if the global warming is not stopped. the temprature on the entire world will rise, and the ice of the pole will melt.

and if the ice melt, the water of the sea will increase rapidly, and the water cycle will stopped and at last the land of the world will "disappear" and the world is completely surrounded by a water.

So what we can do to prevent that?

1. use alternative transportation that powered by human energy such as Bicycle
2. use the alternative energy source such as the Sun, water, and hybrid technology.
3. try to using the biotechnology instead of fossil technology
4. decrease the air conditioner usage if it's not necessary (the CFC gasses)
5. plant a lot of plants
6. keep the forest from destruction
7. and reduce emission from the waste