Recent content by butifarra

Yes Bruce, you are right. Thanks to all for your time.

Ok, K2's reply is the best, I believe. I had taken into account the sound speed of the material, but not the fact that, ultimately, the electromagentic forces keep the molecules united. I didn´t know, either, it was a common question, as the link to the already explained subject shows. Thank...

Hi everybody. I have always wondered something and have not been able to get an answer. Let us suppose we have a 300.000 km long straight rod. It is of graphene, or any very tough material, of absoulte stiffness, without any displacement or absorption between its molecules. Parallel to the rod...