Now you've sunk to 'talking about me behind my back' then? Proof positive of your juvenile propensities.
Hawking was only joking when he dreamed that one up - he was just testing how much he could get away with. He probably couldn't believe it when it was presumed to be a serious theory. Say what you like about the old guy but he sure had a sense of humour.
Ironic projection duly noted for the record! If you can see the posts then it is NOT "talking behind your back". That could only be accomplished via PM's in which case you would not know anything at all about it. You are free to comment on either of the posts and prove us wrong. Did you get straight A's in science classes all through your schooling?
I've already said that I have no science qualifications; but then I don't need to have any to see through all this utter crap which you've fallen for hook, line, and sinker.
What they are doing with dark matter is the same as what they do with most things! They give something a new label to brighten the subject back up . Field density = dark matter Just semantics !
Professor Hawking did indeed have a sense of humor;other than that your comments about him are pure rubbish.
I believe she said it was all speculation...whether true or not there's nothing we can do about unknown big rocks coming at us so there's not much point to losing any sleep over it...all the schemes to avert civilization ending collisions only work for the big rocks we can see and track, any newly dislodged rocks coming straight in out of the dark we have no hope avoiding...
Thank you. It's just a little amusing when people with hours to spend on a discussion forum are "too busy" to watch a thought provoking video about dinosaurs.
Yes, which is why I described it at conjecture. Yup, there is nothing that we can currently do about it but the more we learn the more we might be able to do about it. Given what she was speculating there is the possibility that if Dark Matter can deflect that rock towards us then why can't we learn how to manipulate Dark Matter to deflect it away from us? A Dark Matter deflection shield would be one way to make that happen. Granted there is still a great deal to learn but that is what makes Science so fascinating.
fair enough but I still haven't reached your level of fascination/curiosity with dark matter... let me know when astrophysicists actually know what dark matter is, where it is and what it does...until then my curiosity isn't aroused even with the dinosaur hook...
She explained what we already know about Dark Matter, where it is and what it does in the video. The "dinosaur hook" was just a way to make theoretical physics real to ordinary people who would otherwise just dismiss it as being of no value. She established that there is real value since we now have a means to detect the influence of Dark Matter on ordinary matter.
Dark matter was first proposed by Swiss astronomer Fritz Zwicky in the 1930s to explain the discrepancy between predicted and observed rotation speeds of stars in the galaxy.In the 1970s, astronomer Vera Rubin confirmed the idea by observing the velocity of stars moving around the center of the neighboring Andromeda galaxy. Since then, evidence for dark matter has been firmly established by astrophysical and cosmological observations, such as gravitational lensing of background radiation. https://cosine.yale.edu/about-us/what-dark-matter
I guess you missed the part where she agrees that a meteor or asteroid killed the dinos.... her idea was that dark matter was involved in tweaking that object out of a harmless orbit and into the inner solar system
Kind of interesting that some people find this fascinating, while other people correctly point out that such things will not impact their lives
You don't know that. You are confusing significance with the average person's ability to understand that significance. When Einstein realized the mass-energy equivalence, in 1905, and Szilard conceived of the nuclear chain reaction, in 1933, no average person could have imagined that it would have a huge impact on their life. Of course nuclear weapons and nuclear energy have had a HUGE impact on the average person's life. Do the descendants of the millions of people who would have died, had we not used the bomb on Japan, understand that they are only alive today BECAUSE of physicists? No. But it is true nonetheless.
I figured out where she was going with it, it's really really speculative ...like saying a butterfly flapping it's wings in India ultimately causes a hurricane in Jamaica(I know there's no relationship it's just an analogy), it's a huge leap of logic with no evidence...I'm not saying it's ultimately wrong just there's no evidence for it...
Yes at this point it is very speculative HOWEVER With butterfiies causing tornados... there is no way to to test it Where ad she set out various experiments that we are now doing that will help to test various elements of her speculations.... and those types of experiments might not have been done were it not for such such speculations needing to be tested Yes,,,, kinda like was the case for the general theory of relativity when it was proposed
Your suggestion is nuts, has no supporting evidence and fails to account for the geologic evidence for a large impactor around that time. No germ is going to wipe out an entire population of animals, let alone populations of so many different species, let alone again globally. Diseases can put quite a dent in a population, but never to that extreme.
