I mentioned in an earlier post that Stephano Profumo gave an excellent departmental colloquium here at USC on the subject of Dark Matter, addressing the questions of […] Click to continue reading this post
I grew some decent crystals once when I was younger. Perhaps you did too? It’s an excellent (and cheap) science project for a young person to do, so do encourage them to have a go, whenever you get the chance.
Whatever you do, perhaps it is not a good idea to show them these giant selenite (gypsum) crystals first:
Fantastic aren’t they?! (Click for larger view.) They are in some truly extraordinary […] Click to continue reading this post
