The Kardashev Scale: Sizing Up Planetary Power
Do you think of Earth as an advanced technological civilization? On the Kardashev Scale, planetary systems like Earth hardly register.
When Were Condoms Invented? A Revealing History
The history of the condom has not always been associated with comfort. We’ve tried linen, tortoise-shell (yes really), and latex. What does the future hold?
Can the Pistol Shrimp Hurt a Human?
The Pistol Shrimp has a petite body and large claws like a gunslinger in the Wild West. Its 210-decibel claw snapping sound is louder than a gunshot.
The Danse Macabre: The Waltz of The Dead
For centuries, Europeans participated in a celebratory Dance of The Dead. The Danse Macabre is believed to be the precursor to the celebration of Halloween.