CURIOSITY NEVER RETIRES

Welcome to "Granny & Paw Learn Stuff"! We are a pair of very curious grandparents on a mission to explore the world around us and share our discoveries with the next generazioni. Inspired by the insatiable curiosity of Leonardo da Vinci, we made a pact decades ago to never stop learning.

Whether it's unraveling the mysteries of nature, diving into history's greatest innovations, marveling at the world of artificial intelligence, or the beauty of everyday things, we are constantly in awe of the wonders that surround us. And now, we're positively thrilled to invite our family and friends along on our journey of learning.

We’ve always tried to do our best to pass on our passion for curiosity to our children and anyone else who shares our love of discovery. Now it’s the grandkids who are our focus and this is for them. You are welcome to join us as we celebrate the power of asking questions, pursuing knowledge, and embracing the amazing in the ordinary. Let's learn stuff, together! - Granny & Paw

THE MOST RECENT STUFF

2026 • WEEK 34 • AUGUST 1 -AUGUST 22
THE SEA TURNS TURQUOISE IN ISTANBUL

What Happened:
With all the talk lately about the Strait of Hormuz, there is another strait that is even more exciting. It us called the Bosphorus, the narrow strait running through the heart of Istanbul.  Every spring, the Black Sea turns turquoise. Not just slightly. The entire surface of one of the world's largest inland seas glows a brilliant milky turquoise. This June, NASA's PACE satellite captured the full transformation from orbit, and an astronaut aboard the International Space Station photographed turquoise filaments threading through the Bosphorus. The cause is microscopic ocean plants called coccolithophores, coated in tiny plates of calcium carbonate. When they bloom in their billions, their collective shells scatter sunlight back toward the sky and paint an entire sea a different color.

Why It Matters:
Istanbul sits where it sits because of that strait. Civilizations have fought over the Bosphorus for three thousand years. And every spring, while all of that human drama plays out on its shores, the coccolithophores bloom without any awareness of history, doing what they do when the water is warm and the light is right. As they die, their shells sink and carry carbon to the seafloor, quietly keeping the chemistry of the sea in balance. Nature has been making art and doing chemistry simultaneously, in one of history's most contested waterways, the whole time. We just needed to get high enough to notice. — Granny & Paw



Source:
NASA Earth Observatory / PACE satellite, "A Turquoise Tint for the Black Sea," June 2026.

Read the article here: https://science.nasa.gov/earth/earth-observatory/a-turquoise-tint-for-the-black-sea/

READ THE 2026 NOTEBOOK SO FAR