Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

O'Neill's map shows that indeed the magnetic-field lines do coincide with large sites of star formation on the surface of the Local Bubble, such as the Orion Molecular Cloud that is home to the ...

That field matters, in part, for navigation. To get around using a compass, you have to know how far off magnetic north is from the static north on your map.