Safari Live - Day 129 | National Geographic

Good afternoon! I’m Deborah Adam Simmons, Executive Editor for History and Culture at National Geographic. I am thrilled that we will have a conversation this afternoon with historian Martha Jones and writer Michelle Duster about the role of African-Ameri…

I’m Tim Vandenberg and I’ve been teaching for 25 years: 17 years in Hesperia, California, 6th grade at Carmel Elementary School. Hesperia is a lower socio-economic status area on average, especially among our student population. 100% of our students at th…

Hey, Vsauce. Michael here. In 1934, Webster’s dictionary gave birth to a new word by mistake. Their chemistry editor, Austin N. Paterson, submitted a simple entry: “D or D abbreviation for density.” Nothing wrong with that, but the entry was misread, and …

Imagine that you are a child. You are 10 years old and “environment” is a word that nobody understands. My job is to train the next explorers of Grandmother Earth to be teachers, to be environmental instructors. That’s why I wanted to create a special pla…

So a lot of the concepts that you learn about in multivariable calculus are really all about taking ideas that you originally might have learned in linear algebra and then transferring those to apply to nonlinear problems. So for example, I’m going to gi…

But I think we probably are that are in a recession and that that recession will get worse. So there’s a lot of concern about the health of the U.S. economy right now. Many economists are predicting the country will soon slip into a recession. No disrespe…