"Linkage" is a technical/mechanical name for a relatively simple concept that's played a big role in daily life since the Industrial Revolution.
Imagine four rigid bars of different lengths, connected into a chain by three mobile joints. Add one more joint to the end, close the loop, and you have a linkage. You can use that linkage to change one type of motion—say, a spinning motor—into a completely different, usually very specific, type of motion. For instance, the windshield wipers on your car swish back and forth in time, the way they do, because their movement is controlled by a four-bar linkage similar to the one I just described.
Is your brain a machine? Are your thoughts and feelings just malware of the mind? (And what “really” is a machine, anyway?) John and Eva referee the transhumanist fight of the century. In the blue corner, we have Eva meeting founder and Bryan Johnson, CEO of Kernel, straight from his office in LA. And in […]
For some children with severe epilepsy, the best treatment may be a very rare surgical procedure in which a large portion — even half — of the child’s brain is removed or disconnected. Amazingly, many of these individuals can relearn motor, language, and cognitive skills. How? The brain reorganizes itself and builds new connections. To […]
This video depicts light speed in contexts where it appears to be slow. The moon is 1.2 light seconds from Earth; Mars several light minutes. This is, of course, why humans aren’t moving out of this solar system any time soon.
Things break, and even in this disposable world, there’s a need to fix them. Up until recently, that’s been the crusty bottle of glue in your junk drawer, which is just as liable to coat your fingers as the thing you actually want to repair. Looks like there’s finally a Star Trek-level solution on the […]
Paying for things is all too easy online these days, and that’s why managing your money has gotten so hard. We’ve all done it: You sign up for a streaming subscription or gym membership, blow past the free trial date, and it becomes a part of your monthly expenses. Some of us juggle so many […]
We all know those gifts we get “for the kids,” the ones that parents are secretly more excited to open. Drones are a perfect example, but there’s a model out there that really doubles down on that appeal. Introducing the Space Fighter Building Block Drones, a series of space fighter drones that are a blast […]