Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search
8 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
The worst prediction in physics: what energy is in empty space? (Original Post) Sancho Mar 15 OP
Interesting... Think. Again. Mar 15 #1
take a number and have a seat jaxexpat Mar 15 #2
Lawrence Krauss wrote a whole book about this PJMcK Mar 15 #3
Thanks for posting this. It took 13 minutes of intro before he appeared. erronis Mar 15 #4
Academics love to talk PJMcK Mar 16 #5
I watched it and he showed how you get something from nothing scipan Mar 16 #6
It's weird, isn't it? PJMcK Mar 16 #7
But it all adds up to 0! scipan Mar 17 #8

Think. Again.

(9,942 posts)
1. Interesting...
Fri Mar 15, 2024, 04:54 AM
Mar 15

...and maybe I'm missing something, but if "empty space" doesn't exist because it's not really empty, why are we still considering it "empty" space?

PJMcK

(22,163 posts)
3. Lawrence Krauss wrote a whole book about this
Fri Mar 15, 2024, 05:21 AM
Mar 15

“A Universe From Nothing”

Here’s his lecture based on the book. It’s quite entertaining and informative.

&t=3965s

erronis

(15,776 posts)
4. Thanks for posting this. It took 13 minutes of intro before he appeared.
Fri Mar 15, 2024, 09:03 PM
Mar 15

I'll watch the remainder tomorrow.

PJMcK

(22,163 posts)
5. Academics love to talk
Sat Mar 16, 2024, 08:18 AM
Mar 16

Dr. Krauss makes a crack later in the lecture that he’s running out of time because the introductions went so long!

The lecture itself is informative and entertaining.

scipan

(2,400 posts)
6. I watched it and he showed how you get something from nothing
Sat Mar 16, 2024, 07:34 PM
Mar 16

Now if this poor old brain could only understand what he said....

PJMcK

(22,163 posts)
7. It's weird, isn't it?
Sat Mar 16, 2024, 08:22 PM
Mar 16

Basically, there’s no such thing as “nothing.” Empty space is full of the virtual particles that pop into and out of existence so quickly that they cannot be observed or measured. But their existence can be sensed by other means. These particles create energy. So, empty space isn’t empty!

What a universe we live in!

scipan

(2,400 posts)
8. But it all adds up to 0!
Sun Mar 17, 2024, 12:08 AM
Mar 17

Somehow.. but that kinda makes sense. Just not to me yet very much.

And those virtual particles created the big bang I think...


Latest Discussions»Culture Forums»Science»The worst prediction in p...