SPIN WAVES
Is Sabrina Pasterski the next Einstein? Meet the physicist who built her own aircraft at 12 and is exploring Einstein’s biggest unanswered questions about gravity
Sabrina Pasterski's journey from building an aircraft as a teenager to studying Einstein's biggest unanswered questions has drawn attention to her work in physics. The MIT graduate now researches quantum gravity, black holes and space-time at Canada's Perimeter Institute. She also leads an $8 million research initiative exploring how gravity and quantum mechanics could fit together.
A satellite was launched for the first time with frequency division multiple access in 1966. After functioning for nearly 20 years, it slipped into a useless orbit almost 7 years after official deactivation
ATS-1 was launched on December 7, 1966, to test satellite communications, weather observation and orbital technologies. The spacecraft was the first to use frequency division multiple access to combine independently transmitted signals for delivery over a downlink carrier. After getting deactivated on December 1, 1978, the satellite continued to function for years. It finally failed to respond to commands in 1985.
A planet 63 light-years away is sending repeating radio bursts, and scientists can read them for the first time. Here’s what it reveals about the alien world
Astronomers detected repeating radio bursts from exoplanet Beta Pictoris b. These emissions originate from powerful auroras on the distant world. The signals provide a rare direct measurement of the planet's magnetic field. Scientists calculated Beta Pictoris b possesses a magnetic field stronger than Earth's. This discovery offers a new method to study exoplanet magnetic environments.
Nothing's CMF charts path to becoming majority Indian-owned smartphone brand
CMF, Nothing’s consumer technology brand, is charting a path to becoming a majority Indian-owned independent smartphone brand as Optiemus Group joins its upcoming Series A round. The expanded partnership will combine ownership, manufacturing and R&D under an Indian entity, with CMF planning to develop end-to-end smartphone engineering capabilities and local intellectual property.
No signal underground: Scientists challenge a decades-old idea about how quantum reality breaks down. Schrödinger’s cat has a new problem
A deep-underground experiment in Italy has challenged a decades-old theory that gravity may destroy quantum superpositions. After 62 days of measurements at Gran Sasso, researchers found no trace of the faint radiation predicted by the model. The result does not explain why quantum behavior fades in everyday objects, but it rules out one proposed gravity-driven mechanism, giving physicists new limits in the search for an explanation of quantum decoherence.
In 2017, Japan tested a twin-turbine machine in the Kuroshio Current; the floating device later showed it could generate 100 kW from the Pacific’s “river”
Japan's innovative Kairyu turbine has achieved a significant milestone by effectively harnessing strong ocean currents to generate electricity. Unlike solar or wind, this solution promises reliable energy production. Prolonged testing has been dedicated to ensuring the system’s durability and its potential for commercial use. However, high installation and offshore construction expenses pose serious hurdles that researchers are now striving to overcome through cost and method enhancements.
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In 2017, engineers put a 1MW power machine shaped like a giant floating bird off Scotland; it ran for 2 years, riding out an 18.7-metre wave, before sinking
The Penguin, a groundbreaking wave energy converter, spent two years operating off the rugged Orkney Islands in Scotland. Withstanding fierce storms and 18.7-meter waves, it proved its durability while generating electricity efficiently. After accomplishing its testing objectives, the device sank, yielding valuable insights for future renewable energy advancements. These findings are now influencing the development of an improved model aimed at maximizing energy output.
In 2021, engineers floated a 74-metre platform off Scotland with 2 underwater turbines, and it's been making power since July
Off the coast of Scotland, the innovative Orbital O2 platform is revolutionizing energy generation with its ability to produce clean electricity. With two robust turbines designed to capture ocean currents, this floating tidal system offers a cost-effective and low-maintenance solution. Unlike wind or solar power, tidal energy proves to be a more consistent and dependable energy source.
Limit AI now or humanity will lose its agency, says Nobel laureate Ressa
The Filipino and American journalist, who jointly won the 2021 award in part for her work documenting the power of large tech companies, serves as co-chair of the United Nations' international scientific panel on artificial intelligence, tasked with assessing how AI is transforming lives worldwide.
Limit AI now or humanity will lose its agency, says Nobel laureate Maria Ressa
Nobel laureate Maria Ressa expresses urgent concerns about the risks that artificial intelligence poses to human agency, emphasizing the need for immediate regulation. She encourages citizens to drive legislative changes aimed at holding tech corporations accountable. Ressa outlines AI's progression through social media and manipulation, and highlights the importance of creating platforms that serve the public interest, along with ensuring tech firms face consequences for harm caused.
What’s really hiding around Einstein’s black holes? Scientists find a new gravitational wave clue, a ringing sound that could expose their mysterious ‘hair’
Scientists are exploring subtle changes in black hole ringdown signals. These gravitational wave echoes could reveal surrounding matter or new physics. Subtle mismatches in frequency and damping may indicate hidden structures. Spinning black holes offer additional directional clues for detection. Future observations could test gravity in extreme cosmic environments.
Demutualisation: The driver behind stock exchange IPOs
The National Stock Exchange has successfully gained regulatory approval for its forthcoming initial public offering, marking a significant milestone as it aims to become India's second-largest share sale to date. The transformation to a public company through demutualisation reflects a global trend, following the path of other prestigious exchanges like ASX and CME Group. This listing will showcase the substantial worth of financial exchange operators in India.
15-year-old builds flashlight powered by body heat: How her hollow aluminium tube generated electricity to keep an LED lit for more than 20 minutes
A 15-year-old Canadian student built a battery-free flashlight that uses the temperature difference between a warm human palm and cooler air to generate electricity. Her Hollow Flashlight used thermoelectric tiles to power an LED for more than 20 minutes.
Science says microwaves don’t really cook food from the inside out, here’s what happens inside the oven
Microwaves bounce off the metal walls inside the oven, and when the reflected waves interact with incoming waves, they can create areas of stronger and weaker electromagnetic fields. These nodes and antinodes produce regions where food absorbs different amounts of microwave energy. This uneven distribution is also why many traditional microwave ovens use a rotating turntable to help heat food more evenly.
India-Sri Lanka Test series: Beyond the result
India’s 1-0 series win over Sri Lanka offered plenty to ponder, from the limitations of two-Test series to Gill’s growing authority as captain.
Why does a microwave door have a metal mesh? The tiny holes are doing something important
The metal mesh found on microwave doors serves an essential safety role. The small perforations allow for visibility while effectively blocking harmful radiation. This design ingeniously takes into account the differences in wavelengths between microwaves and visible light. Additionally, this mesh keeps microwave energy contained, ensuring efficient cooking, much like the heat-insulating patterns seen in conventional oven doors.
The celestial orchestra
Scientists have observed magnons, or spin waves, at the nanoscale using new microscopes. This discovery could significantly impact the study of magnetism. Researchers found these spin waves dancing together. The magnetism of materials like iron and nickel results from atomic spins. This observation provides a new understanding of atomic behavior. The findings connect to broader philosophical ideas about the universe.
Scientists stunned by discovering fast-spinning stellar object that defies physics
Astronomers found a rare object named CHIME J1634+44. It is a Long Period Radio Transient. This object spins faster, unlike others. It sends out special radio waves. These waves are circularly and linearly polarized. This discovery challenges what we know about stellar remnants. Scientists are now studying this object to understand its behavior. This may reveal new insights about stars.
Space collision having mass of 100 suns? GW231123 is no simple number, this galactical phenomenon is literally creating ‘waves’ in the universe
A theory of merger black holes or simply a mass conundrum even scientists are baffled by, could you imagine a mass so heavy that weighed approximately 200 suns, we have the GW231123, the largest ever black hole collision to occur.
Earth's inner core slows down: New research unveils 70-year cycle
Researchers have confirmed that Earth's inner core, a solid metal ball spinning independently within our planet, has slowed down significantly. Seismic data reveals a 70-year cycle in its rotational speed. The findings, published in Nature, indicate a complex interplay of forces influencing the core's motion. While this slowdown may impact Earth's magnetic field, scientists continue to debate its broader implications. This article delves into the latest discoveries and ongoing research in understanding the mysterious inner core.
Scientists confirm that the core of the Earth is moving slowly and backwards. Here are the details
Scientists who study the Earth have confirmed that the core of the Earth is moving so slowly that it is actually moving backwards. A team of scientists had first reported this in 2023 and it has now been confirmed and published in a journal.
TopSpin 2K25: This is what we know so far about upcoming tennis game
TopSpin, a tennis gaming favorite, returns with TopSpin 2K25 after a 13-year hiatus. Unveiled during the Australian Open 2024, the announcement trailer offers a glimpse into the immersive world of tennis.
New study reveals rapid spin of Sagittarius A*, the galaxy's center black hole
Recent research unveiled that Sagittarius A*, the colossal black hole at the galaxy's core, spins rapidly, reshaping space-time around it. Using innovative methods, scientists determined its rotation, highlighting its influence on cosmic dynamics. Lead researcher Ruth Daly emphasized the significance of understanding black hole behavior in shaping galaxies. This study provides insights into black hole evolution, shedding light on the origins of these cosmic behemoths and their impact on the structure of our universe.
Earth’s inner core: A shifting, spinning mystery’s latest twist
One idea is that two titanic forces are battling for control over the world's heart.
Tech view: Nifty forms Spinning Top; pause in momentum likely
Muted response of the bears to the policy suggests there may not be a big correction ahead.
Some neutron stars may continuously emit gravitational waves
Mumbai, Dec 15 (IANS) A study by Indian researchers suggests that a population of neutron stars can generate gravitational waves continuously, a finding that could provide an opportunity to study these waves almost permanently.
Diamonds could lead to faster, more powerful computers
Researchers worldwide are working to develop the so-called "spintronics," which could make computers simultaneously faster and more powerful.
New device to boost data storage capacity of your phone, PC
Holography has been recognised as a future data storing technology with unprecedented data storage capacity and ability to write and read a large number of data.
Buy Suryajyoti Spinning: Prakash Diwan
I believe the stock will be in a very strong position. Buy into this with a 25-30% upside.
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