>
The ultimate baking soda (sodium bicarbonate) survival guide:
Most efficient generator to recharge batteries (that I've tested)
How to properly set up your 275-gallon water totes for firefighting or irrigation of garden.
Doug Casey on Milei, Markets, and the Future of Argentina
Cramming More Components Onto Integrated Circuits
'Cyborg 1.0': World's First Robocop Debuts With Facial Recognition And 360° Camera Visio
The Immense Complexity of a Brain is Mapped in 3D for the First Time:
SpaceX, Palantir and Anduril Partnership Competing for the US Golden Dome Missile Defense Contracts
US government announces it has achieved ability to 'manipulate space and time' with new tech
Scientists reach pivotal breakthrough in quest for limitless energy:
Kawasaki CORLEO Walks Like a Robot, Rides Like a Bike!
World's Smallest Pacemaker is Made for Newborns, Activated by Light, and Requires No Surgery
Barrel-rotor flying car prototype begins flight testing
Coin-sized nuclear 3V battery with 50-year lifespan enters mass production
The chinese researchers have been online discussing their room temperature superconducting research and the challenges of the materials.
Here are the issues discussed.
* the current of their material is too small, it is almost impossible to stabilize it.
* what kind of sample this is? It's just a pile of powder, simply pressed into pieces with a mold, and broken into pieces with just a light break. Mr. Guan didn't even dare to touch the silver glue, so he simply pressed a few pieces of indium wire and started testing. Under these experimental conditions, the conductivity is close to that of ordinary graphite, which is shocking in itself.
To make a good conductive film in industry, it has to be repeatedly purified, polished and flattened. Mr Dai now soaks it in water, takes it out and presses it and then measures it. There is not even a tempering and sintering process. They designed this specifically for a one-dimensional system but the my one-dimensional theory is almost ruined.
Nextbigfuture thinks they are saying that the material is not a one-dimensional superconductor as previously believed.
* And they now estimate the resistivity based on the thickness of the entire block. He also tried to point electrodes between the top and bottom of the block, but the effect was not satisfactory. It is very likely that the actual conductive channels are only concentrated near the surface of the sample, which means that the actual resistivity is much smaller than what we currently estimate.