LIGO Gravitational wave detection

[Magnetar]

For those interested in all the gravitational wave news over the last few years, this is a really nice in-depth talk about the project.

 

https://www.youtube.com/watch?v=O3I_F4w-vBo

 

I had no idea the roots of the project dated back as far as it did, amazing.

Edited August 15, 2018 by Magnetar

[Cripple Creek]

Gnarly man.

[Fadingpain]

That video is 1 hour 26 min. long! 

 

Cool.  I'll watch later tonight when I have free time.

 

 

[Pete]

all those videos look excellent!  Thanks for posting

[Foxx]

Dr. Paul Laviolette has been at the forefront of the gravitational wave theory, long before LIGO became operational. back then there was only TAMA in Japan.

[Fadingpain]

1 hour ago, Pete said:

all those videos look excellent!  Thanks for posting

There are a lot of recorded scholarly lectures on Youtube.  If you start looking for whatever you are interested in, you will find them.

 

 

[DC Tom]

7 hours ago, Magnetar said:

I had no idea the roots of the project dated back as far as it did, amazing.

 

They're wrong.

 

I'll let you know why after I watch the video.

[Magnetar]

1 hour ago, Foxx said:

Dr. Paul Laviolette has been at the forefront of the gravitational wave theory, long before LIGO became operational. back then there was only TAMA in Japan.

 

I never knew of Kip Thorne's involvement, interesting.

[Fadingpain]

40 minutes ago, Magnetar said:

 

I never knew of Kip Thorne's involvement, interesting.

One of Kip Thorne's colleagues at Cal Tech is Sean Carroll, who has now done 2 podcasts with Joe Rogan, including one just recently.  

The first was much better in terms of focusing on physics.  Anyone interested in this thread would probably enjoy that podcast.

 

 

[Magnetar]

Yeah, I have seen both of those.  Carroll also has his own podcast now, I have yet to listen to any though.

[Foxx]

11 hours ago, Magnetar said:

 

I never knew of Kip Thorne's involvement, interesting.

time has always been of great interest to me. as part of that education, gravity was naturally part of it all.

[LeGOATski]

I love LIGO.

 

I just got the Voltron set. It's pretty frickin sweet.

 

 

[Fadingpain]

10 hours ago, LeGOATski said:

I love LIGO.

 

I just got the Voltron set. It's pretty frickin sweet.

 

 

Har har har.

 

 

11 hours ago, Foxx said:

time has always been of great interest to me. as part of that education, gravity was naturally part of it all.

Know any good documentaries on Youtube discussing time or time travel ?

 

I have always been interested in it too; read a few books.  One was called "The Arrow of Time" and the basic concept was that time only moves forward, not backward...I guess this is a flaw in some of Einstein's equations as he treated it like it could go both ways.

 

One thing we know is that with time dilation, you could definitely make a forward traveling time machine!  Just go out into space in a fast moving spaceship, get the thing up to 80% of the speed of light or whatever, and do a few laps of the solar system or whatever....kill some "time" (no pun intended)...and come back.  Your 1 week trip will advance things on Earth many years.  I have never seen what the numbers actually are for that. 

 

Like at what speed for what time duration would result in what rate of time advancing in "normal time" back on earth? 

 

Anyway, it should work.  Traveling backward in time is another matter entirely.  I think that must be fundamentally impossible.

 

 

[PromoTheRobot]

2 hours ago, Fadingpain said:

Har har har.

 

 

Know any good documentaries on Youtube discussing time or time travel ?

 

I have always been interested in it too; read a few books.  One was called "The Arrow of Time" and the basic concept was that time only moves forward, not backward...I guess this is a flaw in some of Einstein's equations as he treated it like it could go both ways.

 

One thing we know is that with time dilation, you could definitely make a forward traveling time machine!  Just go out into space in a fast moving spaceship, get the thing up to 80% of the speed of light or whatever, and do a few laps of the solar system or whatever....kill some "time" (no pun intended)...and come back.  Your 1 week trip will advance things on Earth many years.  I have never seen what the numbers actually are for that. 

 

Like at what speed for what time duration would result in what rate of time advancing in "normal time" back on earth? 

 

Anyway, it should work.  Traveling backward in time is another matter entirely.  I think that must be fundamentally impossible.

 

 

 

The rub is multiple universe theory. If you did travel in time, you don't know if you would remain in your own universe.

[Foxx]

2 hours ago, Fadingpain said:

... Know any good documentaries on Youtube discussing time or time travel ?

 

I have always been interested in it too; read a few books.  One was called "The Arrow of Time" and the basic concept was that time only moves forward, not backward...I guess this is a flaw in some of Einstein's equations as he treated it like it could go both ways.

 

One thing we know is that with time dilation, you could definitely make a forward traveling time machine!  Just go out into space in a fast moving spaceship, get the thing up to 80% of the speed of light or whatever, and do a few laps of the solar system or whatever....kill some "time" (no pun intended)...and come back.  Your 1 week trip will advance things on Earth many years.  I have never seen what the numbers actually are for that. 

 

Like at what speed for what time duration would result in what rate of time advancing in "normal time" back on earth? 

 

Anyway, it should work.  Traveling backward in time is another matter entirely.  I think that must be fundamentally impossible.

 

 

well, it is a deep subject. not really knowing where you are in that curve, there is a good intro to it by probably the currently most well known theoretical physicist Michio Kaku.

 

 

a few of the questions that niggle at me are...

 

time is not linear.(?)

what if time could be viewed as being like a ball?

if we reincarnate what is to say that i have not already lived a future life?

[Fadingpain]

Thanks, Foxx, for that video.  Will watch later this evening.  

 

 

[coloradobillsfan]

wanted to share this, but didn't want to start a new thread so I dug up this old one

 

https://www.vice.com/en/article/jgmbdg/scientists-make-breakthrough-in-warping-time-at-smallest-scale-ever