The discovery of the gravitational waves have tremendous incept on the scientific community. Not only a confirmation of the creation of black hole, but also give the humanity's ability to observe the universe in a totally new way. So great the impact has on the scientific field that gravitational waves have the potential to show scientists totally new features of cosmic objects.
First of all, To split a beam of laser light LIGO team uses a special mirror and the beams was sent down to two 4-kilometer-long arms, at a 90 degree angle to each other. The normal situation of this designed experiment suppose to be the light waves interfere distractively to cancel out each other. However, as far as LIGO team dectected, as the same tiem as the gravatational wave squeezing the others, it also straches at the same time, altering the distance the two beams travel relative to each other
The outline of the previous topic.
Part 1:
A: The discovery of the gravitational waves have tremendous incept on the scientific community. Not only a confirmation of the creation of black hole, but also give the humanity's ability to observe the universe in a totally new way. So great the impact has on the scientific field that gravitational waves have the potential to show scientists totally new features of cosmic objects.
Main body:
1.No one knew for sure if black holes actually merged together to create even more-massive black holes, but now there's physical proof.
2."The discovery of the gravitational waves set a new signal new set of signals from the universe that our previous technologies did not allow us to receive, study and learn from"LIGO team member Vassiliki (Vicky) Kalogera, a professor of physics and astronomy at Northwestern University in Illinois, told Space.com
3.The discovering of the gravitational waves will make the observatory — which consists of two big detectors, one in Louisiana and the other in Washington state— more sensitive to gravitational waves.The observatory has the potential to locate these objects or events before light-based telescopes can do so. (http://www.space.com/31922-gravitational-waves-detection-what-it-means.html)
Conclusion:
The discovery for the gravitational waves is great, more than within the milky way
The seminal role of the discovering of the gravitational waves on scientific community
The gravatational waves form when two black holes locked into a spiral, they getting closer and closer until they collide.
http://www.space.com/31922-gravitational-waves-detection-what-it-means.html
http://science.nasa.gov/science-news/science-at-nasa/2008/19mar_grits/
What is the students attitude toward high school
When i asked a student in hangzhou No. 4 high school what is her attitudes towards high school, she kept silent for about 30 seconds then said that " i am so disappointed that school did not offer enough activities and programs that may could potentially improve the current situation" with a extreme deep resignation. As i ask my other class mate though, they from different grades, different classes they are have almost the same answer, only a handful of these said they are positive to the high school study, and looking forward to the future life in high school.
The formation of gravitational waves
The gravatational waves form when two black holes locked into a spiral, they getting closer and closer until they collide.
What will the world look like in 20-100 years?
http://venturebeat.com/2013/09/27/nasa-this-is-what-the-earth-will-look-like-in-2099/
http://www.iflscience.com/space/what-will-earth-look-100-million-years-now
http://www.americanscientist.org/science/pub/what-will-life-be-like-in-100-years
photo credit: Johan Swanepoel / Shutterstock
