The First Cell Phone Call
YouthHistoryTechnologyWhen AT&T launched their cellular system for car phones, Dr. Martin "Marty" Cooper and his team at Motorola decided to build a truly wireless mobile phone, a handheld device that would truly free consumers to communicate on the go.
Betty Reid Soskin Tour Of "Rosie The Riveter" Museum
YouthHistoryTechnologyCulture...Betty Reid Soskin tkaes us on a short tour of the “Rosie the Riveter World War II Home Front National Historical Park” in Richmond, California.
What is a “Developed” Country? Crash Course Geography #40
AdultsHistoryHumanLife...oday we’re going to discuss what it means for a place to be “developed”. Development is often associated with economic success — that is countries with higher standards of living and material wealth like those found in Europe and North America.
The myth of Anansi, the trickster spider - Emily Zobel Marshall
AdultsCreativityHistoryHuman...Follow the spider Anansi on his quest to complete a challenge from the Sky God in order to take ownership of the world’s stories.
2-Minute Time Machine - Writing
YouthHistoryTechnologyWriting...How often do you use writing? Probably every day (yes, that includes texting). But how did humans start writing in the first place?
Recycle Cardboard Into Anything With A 3D Printer
YouthHistoryTechnologyDIY...Paper is an incredible material, but why does it always have to be flat? I’ve developed a process to turn paper into a three-dimensional material, using as little as a 3D printer, a blender, a vice, and pinch of rice.
The Surprising History Of Electric Cars
YouthHistoryTechnologyTransportationCan electric cars reclaim their place on the road? Discover how developments in battery technology are making these cars more efficient and powerful.
Making A LEGO Car Cross Gaps
YouthHistoryTechnologyEngineering...Testing a Lego car against longer and longer gaps that it needs to drive over.
The Most Powerful Computers You've Never Heard Of
AdultsHistoryScienceTechnologyAnalog computers were the most powerful computers for thousands of years, relegated to obscurity by the digital revolution.
What Holds a Country Together or Tears it Apart? Crash Course Geography #36
AdultsHistoryHumanPolitics...Today we’re going to talk about the forces that affect a country’s stability. We’ll take a closer look at Costa Rica, Venezuela, Cuba, and Brazil and examine how the cohesiveness of these Latin American countries varies dramatically even though they are in a region with similar characteristics.
The History And Future Of Everything
YouthHistoryTechnologyScience...Time makes sense in small pieces
Can you solve the human cannonball riddle? - Alex Rosenthal
AdultsHistoryHumanPsychology...They call you the human cannonball. Your act involves flying through rings of fire, bouncing through a trampoline course, and catching the trapezist in the grand finale.