Magnetic field
-
Scientists have developed the world’s strongest resistive magnet, which produced a steady magnetic field of 42 Tesla (T). The system could improve devices that use magnets, as well as enable a range of new experiments that probe electromagnetism.
-
Inspired by the color-changing skin of squids and other cephalopods, researchers have developed a flexible screen capable of storing and displaying encrypted images without using electronics – just tiny magnetic particles.
-
A new two-step process that safely rewarms frozen tissues using nanoscale magnetic rods could preserve donor organs long-term. The procedure provides an alternative to current time-limited methods and paves the way for more life-saving transplantations.
-
Researchers have developed a remote, non-invasive method of selectively controlling neurons in the brain using magnetic fields. The technique opens the door to a greater understanding of brain function and, potentially, new treatments for disorders.
-
While millions of people who couldn't normally see the aurora took in the recent color-filled spectacle in the night sky, NASA's Solar Dynamics Observatory was looking straight at the sun to catch the action. The fiery footage is well worth a watch.
-
The Earth’s magnetic field is vital for life – without it, the Sun’s radiation would sterilize the planet. But a new study suggests we wouldn’t be here at all if that magnetic field hadn’t almost completely collapsed half a billion years ago.
-
Magnetic levitation is used to float things like lamps and trains, but usually it requires a power source. Now, scientists in Japan have developed a way to make a floating platform that requires no external power, out of regular old graphite.
-
In a few billion years, the Sun will destroy the solar system’s inner planets – and if it’s lucky, it might get a big cool scar to brag about. That’s what happened to a newly found white dwarf, which appears to have a bizarre metal scar on its surface.
-
Scientists have confirmed the existence of a strange new form of magnetism. Hiding right under our noses, the team says that “altermagnetism” can be found in everyday materials and could have major technological uses.
-
The hot interior of planets isn’t somewhere you’d expect to find snow, but “iron snow” could fall on Earth’s core. A new study has modeled the dynamics in the lab and found that iron snow could make magnetic fields switch on and off in some planets.
-
The solar wind is constant in the solar system – except on Christmas Day 2022 when it suddenly vanished completely. The event was detected by a NASA spacecraft orbiting Mars, which found that the Red Planet’s magnetosphere tripled in size in response.
-
Everybody’s favorite wonder material, graphene, continues to surprise. MIT physicists have discovered yet another brand new electronic state hiding in this overachieving little material – something they give the bizarre name of “ferro-valleytricity.”
Load More