from the world's big
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
Sallie Krawcheck and Bob Kulhan will be talking money, jobs, and how the pandemic will disproportionally affect women's finances.
Got $55 million lying around? If so, you might be able to score a spot aboard the International Space Station starting 2024.
- NASA awarded a contract to startup Axiom Space to attach a "habitable commercial module" to the International Space Station.
- The project will also include a research and manufacturing module.
- The move is a major step in NASA's years-long push to privatize.
Image: Axiom Space<p>But first, space-tourist-hopefuls would have to pass through physical and medical exams, and 15 weeks of expert training. After that, the trip sounds pretty comfy:</p><p>"There will be wifi," Suffredini <a href="https://www.nytimes.com/2018/06/09/style/axiom-space-travel.html" target="_blank">told the New York Times</a> last year. "Everybody will be online. They can make phone calls, sleep, look out the window. [...] The few folks that have gone to orbit as tourists, it wasn't really a luxurious experience, it was kind of like camping. [...] Pretty soon we're going to be flying a butler with every crew."</p>
A render of the ISS tourist experience.
Image: Axiom Space<p>In a blog post, NASA wrote:</p><p>"Developing commercial destinations in low-Earth orbit is one of <a href="https://www.nasa.gov/press-release/nasa-opens-international-space-station-to-new-commercial-opportunities-private" target="_blank">five elements</a> of NASA's plan to open the International Space Station to new commercial and marketing opportunities. The other elements of the five-point plan include efforts to make station and crew resources available for commercial use through a new commercial use and pricing policy; enable private astronaut missions to the station; seek out and pursue opportunities to stimulate long-term, sustainable demand for these services; and quantify NASA's long-term demand for activities in low-Earth orbit."</p>
NASA's push to privatize the ISS<p>When a Russian rocket launched the first module of the ISS into space in 1998, NASA expected the space station to operate for about 15 years. But the agency has extended the life of the ISS twice, with funding currently set to expire in 2024. NASA spends between $3 and $4 billion per year operating and shuttling astronauts to and from the station. That's a decent chunk of the agency's $22.6 annual budget. What's more, the "major structural elements" of the ISS are certified only through 2028.</p><p>Meanwhile, NASA has been eyeing other projects, namely: putting humans back on the moon in 2024 and establishing a lunar presence. So, to save and redirect money, the agency has been starting to hand over the aging space station to the private sector, which could use it for commercial research and space tourism.</p><p>But some have questioned the move to privatize the ISS, including NASA's own inspector general, Paul K. Martin.</p><p>"An obvious alternative to privatization is to extend current ISS operations," Martin wrote in a <a href="https://oig.nasa.gov/docs/CT-18-001.pdf" target="_blank">2018 report</a>. "An extension to 2028 or beyond would enable NASA to continue critical on-orbit research into human health risks and to demonstrate the technologies that will be required for future missions to the Moon or Mars."</p>
Image: Axiom Space<p>Martin noted that "research into 2 other human health risks and 17 additional technology gaps is not scheduled to be completed until sometime in 2024," meaning that any slip-ups in the process would mean such research might go uncompleted. He also wrote that it's "questionable" whether the private sector could turn a profit on the ISS without "significant" government funding. The Institute for Defense Analyses, a federally funded research and development center, <a href="https://docs.house.gov/meetings/SY/SY00/20180517/108302/HHRG-115-SY00-Wstate-LalB-20180517.pdf" target="_blank">also found</a> that it "is unlikely that a commercially owned and operated space station will be economically viable by 2025."</p><p>The implication is that, if the ISS is handed over to the private sector, taxpayers could end up indirectly supporting space tourism for the ultra-rich. Whether that's worth any of the research benefits that might come from the ISS post-2024 is anybody's guess.</p><p>As the ISS enters its final years, China <a href="http://www.xinhuanet.com/english/2019-10/17/c_138479514.htm" target="_blank">plans</a> to complete construction of a manned space station in 2022.</p>
The coronavirus pandemic has brought out the perception of selfishness among many.
- Selfish behavior has been analyzed by philosophers and psychologists for centuries.
- New research shows people may be wired for altruistic behavior and get more benefits from it.
- Crisis times tend to increase self-centered acts.
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