Safari Live - Day 42 | National Geographic

Let’s say we have a beaker of distilled water at 25 degrees Celsius, and to the beaker, we add some barium sulfate. Barium sulfate is a white solid. A small amount of the barium sulfate dissolves in the water and forms barium 2 plus ions in solution and s…

An object is moving along a line. The following graph gives the object’s velocity over time. For each point on the graph, is the object speeding up, slowing down, or neither? So pause this video and see if you can figure that out. All right, now let’s do…

We’re told the table gives the amounts of materials that are recycled. So we have the different materials here, and then it gives the various amounts. How many kilograms of paper and aluminum did Aya recycle? So pause this video and see if you can figure …

Like we’re stuck at home late. Red-flag! I know for three days I should go get firewood, and we should go get a couple days’ worth of something to eat here: caribou or a few ducks. The Hailstone family spends their summer living in Kowalik, away from the…

What I want to do in this video is to talk a little bit about spectrophotometry, spectrophotometry, photometry, which sounds fairly sophisticated, but it’s really based on a fairly simple principle. So if I have, let’s say we have two solutions that cont…

So another thing about us we were talking about is uh uh failure. Like I had my big failure in 1982. Like in my case, I um made a terrible call in the markets, and whatever it is, and I went broke. I uh lost money, and I had to borrow $4,000 from my dad t…