Safari Live - Day 121 | National Geographic

The next atomic bomb is made of DNA, and it’s as affordable as a new car. In recent years, genetic data has become more available, knowledge more widespread, and lab resources less expensive. Bioengineering had previously been restricted to well-funded la…

Radiation has been in the news a lot lately, but the term “radiation” has just been thrown around loosely to mean anything potentially damaging coming away from a nuclear power plant. So, what are people worried about? That it’s going to, like, explode an…

[Speaker] How many different species or kinds of birds are there? Take a guess. 100, 1,000, more? Well, biologists have estimated that there are at least 10,000 different species of birds all around the world, and some biologists think that there are ev…

Before we get into electron affinity, let’s really quickly review ionization energy. Let’s start with a neutral lithium atom with an electron configuration of 1s² 2s¹. A lithium atom has three protons in the nucleus, so a positive three charge, and two el…

So we’re asked to find the sum of the first 50 terms of this series, and you might immediately recognize that it is a geometric series. When we go from one term to the next, what are we doing? Well, we’re multiplying by ( \frac{10}{11} ). To go from 1 to …

So we have this pretty complicated, some would say hairy, expression right over here. What I want you to do is pause this video and see if you can simplify this based on what you know about exponent rules. All right, now let’s do this together. There’s m…