Safari Live - Day 42 | National Geographic

Electro negativity is probably the most important concept to understand in organic chemistry. We’re going to use a definition that Linus Pauling gives in his book “The Nature of the Chemical Bond.” So, Linus Pauling says that electron negativity refers to…

Where do you see things now that we’re about a month in? I would actually distinguish between what we actually see in the markets and the story that Wall Street is telling. The story that Wall Street is telling is all optimistic. We’re going to have all …

We are on our way to CERN in Geneva, and this is John Mark, the cameraman. Hi! And, uh, we should be coming up on it. That’s the Dome; that’s the famous CERN Dome up ahead. This is pretty exciting! On July 4th here at CERN, a historic announcement was mad…

A studio apartment in the big city, a small and strange environment. This human has boldly traveled far from a natural countryside habitat but is not as adapted to this harsh alien world. It threatens her instinctual behavior. Her ears are assaulted like …

Now we’re going to talk about the idea of impedance. This is a really important idea in electronics, and it’s something that comes from the study of AC analysis. AC analysis is where we limit ourselves to inputs to our circuits that look like sinusoids, c…

What we have here are a few data analysis questions in a biology context from the New York Regents exam. But these are useful example problems if you’re studying high school biology in general because they might show up in some type of an exam that your t…