This video demonstrates how you can detect and draw a magnetic field using some iron filings, a compass and a magnet. You’ll notice that the arrows on your lines always point from the north to the ...

This video explains why a wave changes direction when it passes from one medium to another, in a process called refraction. The change in direction of a refracted wave can be drawn using a ray diagram ...

Raizen to sell Argentina downstream business to Mercuria for $1.42 billion Brazilian sugar and ethanol producer Raizen said on Thursday its subsidiary Raizen Energia had agreed ‌to sell its downstream ...

Daytime Pick 3 and Pick 4 drawings are held at 3 p.m. daily. They can be seen as live or on-demand video.