How do we smell?
Adults HumanAn adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the air get translated into smells in your brain? Rose Eveleth charts the smelly journey through your olfactory epithelium and explains why scent can be so subjective.
Why do we cry? The three types of tears
Adults HumanWhether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particularly watery day in the life of Iris (the iris) as she cycles through basal, reflex and emotional tears.
The Invisible Universe Of The Human Microbiome
Adults HumanThe next time you look in a mirror, think about this: In many ways you're more microbe than human. There are 10 times more cells from microorganisms like bacteria and fungi in and on our bodies than there are human cells. But these tiny compatriots are invisible to the naked eye. So we asked artist Ben Arthur to give us a guided tour of the rich universe of the human microbiome.
Isolated tribe man meets modern tribe man for the first time
Adults HumanIn the XXI century the team of Jean-Pierre Dutilleaux explorer and ethnographer had the privilege to contact in 1998, after many obstacles, with Los Toulambis a tribe that had never seen a white man, or had been involved with the outside world.
How to Memorize | How to Remember Names | Memory Speaker
Adults HumanMemory speaker and memory expert, Ron White, gives a quick 20 minute speech with tips on: - How to remember names - The value of remembering names - How to memorize using the roman room or method of loci - Eat foods good for the memory - Study tips for students