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 ...

Sam's Club is among the food makers removing artificial dyes from products, yet hoping shoppers don't notice a difference in color. But why? Food-makers are phasing out artificial dyes. The problem: ...

Between February and April, 10 percent of Americans ages 25 to 54 lost their jobs. The employed percentage of the population dropped to its lowest level since 1975, according to Labor Department data.

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