magnetic field lines
-
The Secrets of Magnets
Welcome to my first “Science Answers” post! About a month ago, I sent out a post requesting science questions from all of you; you can find it here. This post addresses the first of the questions I was asked. If you…
-
The Sun’s Magnetic Show
Do you recognize the name Galileo Galilei? Galileo was the classical astronomer who made the drawing above. I have little idea what his writing actually says — it’s in Latin — but it’s clear enough what this early diagram is…
-
Spots on the Sun
Have you ever looked at the sun, and seen something like this? Now, before you decide to look at it right now and see what you see, it’s my responsibility as an amateur astronomer to remind you of the safety…
-
Our Sun: The Corona
When we observe our sun’s corona, we discover something odd. It’s really, really hot. But…wait a second. How is that odd? Shouldn’t the sun be hot? Well…yes. It should, and it is. Its surface temperature is almost ten thousand degrees…
