petemcewan 27 #1 Posted August 24, 2017 SJCrothers, Just an inquiry. II Critical phenomena in gravitational collapse Starting with spherical spacetimes, where dW º dq2 + sin2qdj2, and {xm} = {t, r, q, j} are the usual spherical coordinates, Choptuik [5] investigated the gravitational collapse of a massless scalar field, f, which satisfies the Einstein-scalar field equations, Why is the field expressed as a Scaler quantity and not a Vector quantity (having magnitude and direction ) ? Share this post Link to post Share on other sites Share this content via...
geared 317 #2 Posted August 24, 2017 I think he ran off to troll other forums. Share this post Link to post Share on other sites Share this content via...
Hairyloon 10 #3 Posted August 24, 2017 Why is the field expressed as a Scaler quantity and not a Vector quantity (having magnitude and direction ) ? Can you ask it in plainer English? Share this post Link to post Share on other sites Share this content via...
Jim Hardie 527 #4 Posted August 24, 2017 This is Sheffield Forum not Stephen Hawking's drop box. Share this post Link to post Share on other sites Share this content via...
Hairyloon 10 #5 Posted August 24, 2017 This is Sheffield Forum not Stephen Hawking's drop box. Are you suggesting that our members are incapable of advanced mathematics? It may not matter if they are, if the OP is prepared to put in some work. There is no better way of properly understanding something than explaining it to another. Share this post Link to post Share on other sites Share this content via...
MEC176 10 #6 Posted August 24, 2017 Quote: II Critical phenomena in gravitational collapse Starting with spherical spacetimes, where dW º dq2 + sin2qdj2, and {xm} = {t, r, q, j} are the usual spherical coordinates, Choptuik [5] investigated the gravitational collapse of a massless scalar field, f, which satisfies the Einstein-scalar field equations, Er sorry cannot help you there but if you write into the Big Bang Theory possible Sheldon may have the answer, Sarcasm loading. and I’m sure with Einstein’s Theory of relativity you will manage a rhetorical Sarcastic quiptic retort. Share this post Link to post Share on other sites Share this content via...
petemcewan 27 #7 Posted August 24, 2017 (edited) Hairyloon, I think what is in the question is as simple as it gets. Scalers are quantities which only have magnitude ,eg: volume. Vectors are quantities that have magnitude and direction, eg : force. I'm puzzled how a scaler gets into the equation. Edited August 24, 2017 by petemcewan Share this post Link to post Share on other sites Share this content via...
cressida 1,570 #8 Posted August 25, 2017 (edited) gravity, black holes ...the planets are indeed a mysterious force to be reckoned with so better stay indoors if there is a full moon next to Uranus Edited August 25, 2017 by cressida sorry wrong thread Share this post Link to post Share on other sites Share this content via...
tinfoilhat 11 #9 Posted August 25, 2017 Are you suggesting that our members are incapable of advanced mathematics? It may not matter if they are, if the OP is prepared to put in some work. There is no better way of properly understanding something than explaining it to another. Considering the amount of self confessed experts on here when I asked what I thought was a reletively straight forward question (for experts) on here, no two answers were the same. Share this post Link to post Share on other sites Share this content via...
The Joker 10 #10 Posted August 25, 2017 gravity, black holes ...the planets are indeed a mysterious force to be reckoned with so better stay indoors if there is a full moon next to Uranus what if Uranus is so big it generates its own gravity ? Share this post Link to post Share on other sites Share this content via...
cressida 1,570 #11 Posted August 25, 2017 (edited) There would have to be an internal investigation...obviously .. the astrological alignments are a little challenging at the moment but wait for even more fireworks next year with Uranus doing his edge of chaos orbits. Edited August 25, 2017 by cressida Share this post Link to post Share on other sites Share this content via...
Hairyloon 10 #12 Posted August 25, 2017 Considering the amount of self confessed experts on here when I asked what I thought was a reletively straight forward question (for experts) on here, no two answers were the same. That is probably the quantum effect... Share this post Link to post Share on other sites Share this content via...