University of Toronto scientists found that salt creates the ripples and ridges you see in icicles — and that there is enough salt in the runoff from an average Toronto rooftop to radically change an icicle's shape.
How icicles get their lumps
How to filter sediment from muddy water with a paper towel and some cups
In this cool video, we learn the survival skill of filtering sediment from muddy water with a paper towel and some cups. The way this is done is by draping… READ THE REST
The legend of 3M's invisible electrostatic wall
Giant polypropylene rollers at the 3M factory generated so much static electricity that it formed a strange "invisible wall" that would alarm and impede employees there. William Beatty, citing David… READ THE REST
Can this robotic exoskeleton help pianists break their training ceiling?
Anyone who has played a sport or musical instrument has experienced the dreaded plateau, or "ceiling effect," when they cannot progress further. A study published in Science Robotics has found… READ THE REST
Learn 14 languages at home with Babbel
TL;DR: Get lifetime access to Babbel's language learning app, featuring 10,000+ hours of content, 14 languages, and bite-sized lessons, for just $149.99 (originally $599)—only through January 25. Traveling the world is more… READ THE REST
Kids can build their own Smartwatch
TL;DR: Kids can build their own Smartwatch and virtual pet with the CircuitMess DIY Wearable Bundle, now $199 (reg. $214). Kids are surrounded by technology, but that doesn't necessarily mean they understand… READ THE REST
Goodbye TikTok, hello brainscrolling
TL;DR: Stop wasting time scrolling and start learning—Pearls Premium gives you lifetime access to bite-sized, 15-minute summaries of bestsellers for just $29.99. TikTok might get banned, and while it may feel… READ THE REST
