Friday, February 28, 2014

What We Can Learn From Galaxies Far, Far Away- TED Talk


http://www.ted.com/talks/henry_lin_what_we_can_learn_from_galaxies_far_far_away.html

7 comments:

Sam said...

It's so interesting how he looks at the universe around us as just a big machine that can help be used to help understand smaller parts of it, such as his titanic analogy states. But to me the most interesting part isn't the universe, but him and his perspective one the world. I think it is very important to have your own perspective on the universes purpose and how it could work. But I think that there are some details he left out, including how this is more productive, as, we can't control galaxies and they can't be reached by man, and they take a long time to be reached my machine.

Will said...

I find it very interesting that galaxies, huge masses of solar systems, can themselves clump together into huge galaxy clusters. The amazing gravity created by these cosmic bodies can even distort the patterns of light! Also, dark energy, the force that makes the universe expand at an ever-increasing rate seems very mysterious and interesting. I think that all that we are beginning to know about our universe is so amazing!

Clyde C. said...

Unfortunately, I am completely lost.

Loran said...

This is really cool. I love how he talks about it like it is a really small thing. It's also amazing that individual galaxies can come together and make a galaxy cluster. It makes me think, are we in a galaxy cluster? I like the way he uses the Titanic as an analogy. I'm going to use that method.

Madi M. said...

I'd have to agree with Clyde on this one. The speaker looked extremely nervous, and not only was talking like a robot, but was speaking very quickly, making what he was saying hard to understand. However, what I did understand of what he said was pretty interesting. I didn't know space could be SO interesting... Or maybe I did. I mean, there's so much around me that I don't know about. Overall, I liked watching this video (mostly because I didn't have to read anything) and what I learned from it was definitely exciting.... I didn't want to repeat the word "interesting", so "exciting" was the best I could come up with.... Sorry....

Ali M. said...

Universe. There are so many ways to describe it. There are so many ways to understand it. But we don't know all the ways to describe it or all of the ways to understand it. There is so much that humans know about the universe and it is sort of mind bogling to think of it, but there is still so much that we still have to know. I think there is so much more to learn than what we know. Henry Lin taught me and made me think of the universe in the big scale how little I know about it. When he began talking about the very big galaxy clusters I was shocked to find out how big they are. The fact that light is being bent and distorted due to the gravitational pull is shocking! In the picture labeled ABELL 1689 I was stunned to find out that in that particular cluster there were a million billion suns! After the very big galaxy systems, Henry began to talk about the very hot galaxy systems. Though I looked it up I am still confused on how the gas could go faster and faster to get to be a million degrees. I am also confused on the topic of dark matter. I can't comprehend what it is. Overall I really enjoyed watching the video. It put things into perspective for me. I also thought that Henry Lin was correct to put the big pieces together to figure out the big picture. Again, I really enjoyed the topic and would love to research more.

Katarina said...

I found this article interesting. He was a bit confusing, but I did find it amazing in that these clusters (which are big, yet so small compared to the whole of the universe) can shows things about the very big, small, hot, and strange in our universe. I was especially interested in dark matter, which is talked about in many other Ted Ed videos. This intrigues me in that it's very strange and mysterious. I would like to know more about that. To answer your question Loran, we live in the Local Cluster along with Andromeda, and Triangulum galaxies. The Local Cluster is part of a larger place called the Virgo Supercluster. I found it interesting that there were clusters inside of other clusters and that they can help us understand a bigger place, the universe. I read many things that have said its possible that there are many universes, and the excites me too.