I just watched the latest episode of "The Universe", on the History Channel. Yipes, they made a lot of gross errors! They explained why matter is solid when it's composed of mostly empty space: Using an electric box fan, they showed that pingpong balls go through it when the blades are not moving. They said the hub is like the positive nucleus, and the blades are the electrons. It was said that "standing still" they don't keep anything out, but when spinning (he turns on the fan) it now fills out the space and prevents the balls from passing through. When they said that matter is mostly empty space, they showed an illustration of simple planetary-model atoms, far far apart like a diffuse gas. In reality, those electron shells are touching or bound together to make the solid. The "emptiness" was portrayed at the wrong level! The Earth was morphed-in from a bar magnet, showing the magnetic field is like the Earth is a big magnet. But they showed the N at the Earthly north pole. If the Earth were a big bar magnet, the S would be at the top, so the N's on our compass needles are attracted to it. Particles from solar flares are radioactive? I thought they were mainly protons and electrons. They said that the plasma is magnetic, and that's why it's deflected via the Earth's magnetic field. They said that if the geomagnetic field faded or reversed, our compasses would not work, and GPS would not work either. Sunspots are holes where the sun dimples down, and a solar flare is where material rushes out of this central bore (the body of the black spot) like a geyser! The "solar flare" arcs across and somehow connects with another one (it didn't say if they both squirt and meet in the middle, or of the first plume dives back down the other hole) to form the loops you see at the edge of the sun. Jupiter's magnetic field extends out for 4 million miles. The classic picture of iron filings around a magnet: this was explained as a way to visualize the "lines" that are really there. They got the basics wrong, but I can see how they were leading up to the way magnetic lines behave in the sun. I don't remember what else -- it just kept on going, with almost every scene being incorrect somehow. Anyone have more?