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Scientists blow up their lab after creating strongest magnet ever
It's a record magnetic field, but... yeah. That didn't last long.
- Scientists knew that it would probably explode, but they did not expect to reach such a record magnetic field.
- Magnetic fields are measured in teslas, after Nikola Tesla.
- This one reached a record 1,200 teslas, 400 times stronger than an MRI; watch it explode in the video
"With magnetic fields above 1,000 teslas, you open up some interesting possibilities," lead researcher Takeyama explained. "You can observe the motion of electrons outside the material environments they are normally within. So we can study them in a whole new light and explore new kinds of electronic devices. This research could also be useful to those working on fusion power generation."
The study, published in Review of Scientific Instruments, was released on September 17.
To achieve the record, the team used a technique known as electromagnetic flux-compression (EMFC). The instrument, which generates a low-strength magnetic field of 3.2 teslas, was attached to a row of capacitors that generate 3.2 megajoules, which is a huge amount of energy.
This compresses the magnetic field into a tiny area extremely quickly. But, as the team predicted, it can't be compressed for long, eventually creating a shock wave that rips the instrument apart. They expected this to happen after about 700 teslas, as that's what it was built to withstand. But incredibly, it reached 1,200 before exploding.
1,200 teslas later... a huge white light engulfs the lab. Video below!
Photo: The University of Tokyo.
Another view of the magnetic explosion
This image explains it a bit better, from the IEEE institute. "The University of Tokyo's 1,200-Tesla magnetic field generator is powered by a bank of capacitors [on left, white] capable of storing 5 megajoules. The capacitors' energy flows into the primary coil [bottom left, gray] and induces a counteracting current and magnetic field in the liner [orange]. This implodes the liner in 40 microseconds, compressing the magnetic field [bottom right]."
Graphic illustration of how the scientists hit the record.
Image by University of Tokyo.
Watch it go boom
Inventions with revolutionary potential made by a mysterious aerospace engineer for the U.S. Navy come to light.
- U.S. Navy holds patents for enigmatic inventions by aerospace engineer Dr. Salvatore Pais.
- Pais came up with technology that can "engineer" reality, devising an ultrafast craft, a fusion reactor, and more.
- While mostly theoretical at this point, the inventions could transform energy, space, and military sectors.
High frequency gravitational wave generator.
Credit: Dr. Salvatore Pais
A craft using an inertial mass reduction device.
Credit: Salvatore Pais
Laser Augmented Turbojet Propulsion System
Credit: Dr. Salvatore Pais
The world's 10 most affected countries are spending up to 59% of their GDP on the effects of violence.
- Conflict and violence cost the world more than $14 trillion a year.
- That's the equivalent of $5 a day for every person on the planet.
- Research shows that peace brings prosperity, lower inflation and more jobs.
- Just a 2% reduction in conflict would free up as much money as the global aid budget.
- Report urges governments to improve peacefulness, especially amid COVID-19.
The lush biodiversity of South America's rainforests is rooted in one of the most cataclysmic events that ever struck Earth.
- One especially mysterious thing about the asteroid impact, which killed the dinosaurs, is how it transformed Earth's tropical rainforests.
- A recent study analyzed ancient fossils collected in modern-day Colombia to determine how tropical rainforests changed after the bolide impact.
- The results highlight how nature is able to recover from cataclysmic events, though it may take millions of years.