Refrigerator magnets are surprisingly complex! Like why does "north attract south"? The physics of refrigerator magnets touches so many areas of physics: quantum mechanics, Maxwell's equations, statistical mechanics.

TIL one of the first ultrasound machines was called a "supersonic reflectoscope." That was such a cool name.

The hot chocolate effect en.m.wikipedia.org/wiki/Hot_choco…

AI should feel more like a collaborator than an assistant

Just fixed Curius tonight and it should be available on the Chrome store again soon — sorry to everyone who's been waiting! alas, we've been preoccupied with bci

“Nonlinear sound-sheet microscopy provides a ~64× acceleration in imaging speed, ~35× increase in imaged volume, and ~4× increase in classical imaging resolution compared with the state of the art in biomolecular ultrasound.”

How we packed 2500 people in a hockey arena for the world's greatest demo day

When Roger Penrose goes for a walk you might expect him to be thinking about cosmology etc. But he isn't. At least not always. Sometimes he is thinking about the walk itself. And the mathematics of it. Because Roger has his obsessions. Like lots of us.

The goal of physics is to write a short program of the universe

We (mostly Adam Marblestone and Mary with the help of the amazing scientists in our network) made a map of “fundamental development” gaps in science and technology. Go explore gap-map.org.

this is really neat

In Pasadena / LA for a week! hosting a dinner on Sunday with friends and scientists, would love to meet new humans DM me if you're interested in coming (bonus points if you attach a reference to an idea you find beautiful)

Instead of teleoperation, we train solely on data from our Skill Capture Glove. The glove is co-designed with Memo's hand, meaning they share the exact same geometry and sensor suite. If you can do it wearing the glove, Memo can learn it.

Can ultrasound make you smell things that aren’t there? Turns out, yes! We reliably triggered distinct scents like a campfire burn or a garbage truck by targeting our brains with ultrasound. To our knowledge, this has never been done before, even in animals. This may be a

My favourite part of this post: “The first time Albert smelled the garbage, he jerked his eyes open thinking a garbage truck just drove in!”

Tried it on GuilleFix — k/acc | /dd ⏩ as well