Consider the Slime Mold: How Amoebas Form Social Networks
"It turns out we’re not the only species that assembles ourselves into networks," says sociologist and physician Nicholas Christakis.
What's the Big Idea?
"It turns out we’re not the only species that assembles ourselves into networks," says physician and sociologist Nicholas Christakis in his Floating University lecture, "If You're So Free, Why Do You Follow Others?" Consider the slime mold, for instance. When placed in a maze with food at the end of it, individual amoebas will connect to create a sort of "super organism" capable of performing feats that no single organism could do on its own.
Jonathan Zimmerman explains why teachers should invite, not censor, tough classroom debates.
- During times of war or national crisis in the U.S., school boards and officials are much more wary about allowing teachers and kids to say what they think.
- If our teachers avoid controversial questions in the classroom, kids won't get the experience they need to know how to engage with difficult questions and with criticism.
- Jonathan Zimmerman argues that controversial issues should be taught in schools as they naturally arise. Otherwise kids will learn from TV news what politics looks like – which is more often a rant than a healthy debate.
Controversial map names CEOs of 100 companies producing 71 percent of the world's greenhouse gas emissions.
- Just 100 companies produce 71 percent of the world's greenhouse gases.
- This map lists their names and locations, and their CEOs.
- The climate crisis may be too complex for these 100 people to solve, but naming and shaming them is a good start.
It marks another milestone in SpaceX's long-standing effort to make spaceflight cheaper.
- SpaceX launched Falcon Heavy into space early Tuesday morning.
- A part of its nosecone – known as a fairing – descended back to Earth using special parachutes.
- A net-outfitted boat in the Atlantic Ocean successfully caught the reusable fairing, likely saving the company millions of dollars.
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