I am wondering what happens when a magnetic field is applied across a solution of an iron salt (say in a beaker). Is a gradient formed? If nothing happens, why? What are the variables? Effect of oxidation state (ferrous or ferric)?
It is often stated that observation of the most distant stars inform us about the early universe because the light we observe now was emitted from the stars when the universe was young. In fact this is a quote from space.com:
"The universe is about 13.7 billion years old. Light reaching us...