Skipping stones takes a little practice and finesse, so Mark Rober enlisted his extended family to help build the perfect rock-skipping robot. Their creation, named Skippa, ended up helping humans learn, too.
I built a rock skipping robot with the help of my nieces and nephews to understand the perfect way to skip a rock. In the end we learned that 4 things matter most:
1) Rock angle of 20 degrees
2) Rock PATH angle of 20 degrees
3) Spin the rock as much as possible
4) Choose a rock that is flat on the bottom and as heavy as possible for you to still get to your max arm speed.
• Rock Skip Robot- The SCIENCE of PERFECT ROCK SKIPPING (YouTube / Mark Rober)
Colored sand, a Chladni plate, and a little Bach make for a very soothing demonstration of cymatics.
PolyGlu is used by aid workers to force impurities in water to settle at the bottom of a container, making the water safer for drinking in areas where water is scarce or polluted.
“Are wormholes real or are they just magic disguised as physics and maths?” (Kurzgesagt – In a Nutshell)
From self-driving cars to Siri, we’ve already gotten a taste of what AI can do, and now this groundbreaking technology is making its way to education and revolutionizing the way we learn new languages. Mondly uses state-of-the-art speech recognition to help you speak foreign languages like a true local. Lifetime subscriptions are on sale for […]
We’ve all used Excel at some point in our careers, but chances are most of us have only scratched the surface of what this ubiquitous program can do. From automating simple tasks to presenting data through beautiful charts and PivotTables, Excel brings a ton of utility to the table that can make a huge impact […]
Traveling isn’t always the most comfortable experience, but at least you have your music to keep you company on those long flights. That is, until your chatty neighbor and that crying baby three seats over drown out your playlist. These Paww WaveSound 3 Noise-Cancelling Bluetooth Headphones block up to 20 decibels of audio, so you can […]