17:17
Our Inevitable Cosmic Apocalypse
We revisit a 2020 interview with cosmologist Katie Mack about how the universe could end. Plus, remembering psychologist Daniel Kahneman.
Los Alamos And The Beginning Of Our Nuclear Age
In her new book, Sarah Scoles writes about how scientists grappled with the implications of nuclear weapons.
Model Chemical Elements And Molecules With Bricks
Build simple atoms and molecule models using plastic construction bricks—like LEGO—as you explore the elements that shaped all life on Earth.
16:15
Making Chemistry More Accessible To Blind And Low-Vision People
Scientists are working to make chemical research more accessible to blind and low-vision students through 3D-printed models and modified equipment.
Talk Like A Spider Using Sound And Secret Codes
Discover how spiders communicate through vibrations and dance. Then, create a cipher to “talk” like a spider using your own tap code language.
Test Your Taste Receptors With Spicy Treats
Discover the science behind foods that make your tongue tingle. Experiment with spiced beverages that activate your mouth’s TRP receptors.
8:08
The Science Behind Your Unraveling Sweaters
A textile professor and knit expert explains why many sweaters today are of poorer quality than sweaters in the past.
The Best Of Science Friday, 2023
This year science reached new frontiers, and our coverage followed suit. Our staff—and audience—share their favorite SciFri creations of 2023.
7:49
Flame Retardant Could Be Made From Discarded Cocoa Husks
Scientists are using leftover cocoa husks to extract lignin, an organic polymer that can become flame retardant, foam, or a straw.
9:02
The Oozy Physics Of Oobleck
Non-Newtonian fluids challenge our ideas of what’s liquid and what’s solid. We now have a better understanding of how they work.