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SpaceX has bought an advertising package on Twitter for its satellite internet service Starlink, said Elon Musk, who owns the rocket company and the social media platform that is seeing an exodus of advertisers.

SpaceX Starlink bought a tiny – not large – ad package to test effectiveness of Twitter advertising in Australia and Spain. Did same for FB/Insta/Google,” Musk tweeted on Monday.

Twitter, which generated more than 90 percent of its second-quarter revenue from ad sales, has seen advertisers flee on fears that Musk would change the company’s content moderation rules.

Companies including General Motors, General Mills, Mondelez International and Volkswagen AG paused advertising on the platform after Musk acquired it last month.

“At the moment, most clients are suspending their activities (on Twitter) because they’re worried about extreme content and content moderation on the site,” S4 Capital’s Martin Sorrell said.

The chief executive of Tesla and SpaceX had last week told advertisers that he aimed to turn the social media platform to pursue truth and put an end to fake accounts.

He also raised the possibility of Twitter going bankrupt days after disclosing that the platform had seen a “massive” drop in revenue and blamed activist groups pressuring advertisers.

A Platformer reporter said on Monday citing an internal email that Twitter has locked down its code base, freezing any production changes to its systems until further notice.

Meanwhile, Tesla shares fell 4 percent after Musk said he had “too much work” on his plate, with investors worrying he is too preoccupied with the social media platform when the world’s most valuable automaker is facing production hurdles and rising competition.

© Thomson Reuters 2022


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Lake Mendota’s Bacteria Are Stuck in an Evolutionary Loop, Finds Study

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Lake Mendota's Bacteria Are Stuck in an Evolutionary Loop, Finds Study

Seasonal variations in Lake Mendota in Wisconsin, US, appear to drive rapid evolutionary changes in bacterial species, as revealed through a long-term genetic study. Bacteria within the lake adapt to changing environmental conditions, with species undergoing significant genetic shifts over time. Despite these changes, many bacteria return to nearly identical genetic states each year, creating a cyclical pattern of evolution. The findings shed light on how microbial life responds to seasonal pressures, offering insights into broader ecological and evolutionary processes.

Bacterial Evolution Observed Over Decades

According to a study published in the Nature Microbiology journal, bacterial populations in Lake Mendota adapt to environmental shifts caused by the lake’s seasonal changes. Researchers examined genetic material from a unique archive of 471 water samples collected over 20 years.

Each year, bacteria responded to varying conditions, such as algae blooms in summer and ice cover in winter. Strains within species competed based on their adaptability to specific conditions, leading to a repeated cycle of genetic change.

Impact of Extreme Weather Events

Unusual weather in 2012 provided additional insights into bacterial evolution. During that year, early ice melt, hotter temperatures, and reduced algae levels resulted in significant genetic changes in bacterial communities. Research revealed a notable shift in genes related to nitrogen metabolism among several species, indicating long-term genetic adaptations to these atypical conditions.

Implications for Climate Change

Robin Rohwer, a researcher at the University of Texas at Austin, told Phys.org that climate change may intensify such evolutionary responses, as extreme weather events become more frequent. These findings highlight the adaptability of microbial ecosystems to both gradual and abrupt environmental changes.

Advanced Techniques Unlock New Discoveries

The study, led by Rohwer and supported by computational resources at the Texas Advanced Computing Center, reconstructed bacterial genomes from fragmented DNA samples. With over 30,000 genomes analysed, this research represents one of the most extensive investigations into microbial evolution in a natural setting, offering valuable data for future studies.

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First-Ever Female Burial with Weapons, Believed to Be a Warrior, Discovered in Hungary

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First-Ever Female Burial With Weapons Uncovered in Hungary

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First-Ever Female Burial With Weapons Uncovered in Hungary

The first confirmed case of a female burial with weapons from the 10th century in the Carpathian Basin, Hungary, has been uncovered. Skeletal remains and grave goods, including weaponry, were identified at the Sárrétudvari-Hízóföld cemetery. This discovery, described by experts, challenges prior assumptions about societal roles during the Hungarian Conquest period, a time marked by mounted archers and frequent conflicts. Although evidence of weapons was present, researchers approached conclusions cautiously, ensuring findings were grounded in detailed analysis.

Archaeological Findings and Methodology

The study was led by Dr. Balázs Tihanyi and his colleagues, published in PLOS ONE. As reported by Phys.org, the burial contained a silver penannular hair ring, bell buttons, a bead necklace, and archery-related items such as an arrowhead, quiver parts, and an antler bow plate. Genetic and morphological tests confirmed the individual, referred to as SH-63, was female, despite the poor preservation of skeletal remains.

Dr. Balázs Tihanyi, leader of the research team, told the publication that the combination of grave goods in SH-63’s burial was unique within the cemetery, blending typically male and female items.

Challenges in Determining Warrior Status

The presence of weapons did not lead to assumptions about SH-63’s status as a warrior. Researchers noted that being part of a warrior class involved specific societal roles, and physical evidence alone is insufficient for confirmation.

Indicators such as joint changes and trauma were identified, possibly suggesting activities like horse riding or weapon use. However, it was emphasised that these signs could also result from daily life unrelated to warfare.

Historical Implications

It was reported that this discovery provides a glimpse into the complexity of life in 10th-century Hungary, with SH-63’s burial raising questions about gender roles and social structures of the time. Further investigations are planned to compare this case with others from the same period, aiming to deepen understanding of the era’s societal dynamics.

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JUNO Neutrino Detector Nears Completion, Set to Begin Operations in 2025

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JUNO Neutrino Detector Nears Completion, Set to Begin Operations in 2025

Physicists are finalising the Jiangmen Underground Neutrino Observatory (JUNO), a facility designed to unravel the mysteries surrounding neutrinos, subatomic particles with no electric charge and minimal mass. Scheduled to commence data collection in summer 2025, the observatory aims to identify the heaviest among the three neutrino types. Situated 700 metres beneath the ground in China, the project represents a significant step in the study of these elusive particles and their antiparticle counterparts, antineutrinos.

Key Features of the JUNO Detector

According to a Science News report, the observatory features a 35-metre-wide acrylic sphere at its core, which will hold 20,000 metric tons of liquid scintillator. This liquid is engineered to emit light when particles from an antineutrino interaction are detected. The setup includes tens of thousands of photomultiplier tubes to capture these light signals. To minimise interference from other particles, the detector is surrounded by a water-filled cylindrical pit, the filling of which began on December 18, 2024.

Focus on Antineutrinos

Antineutrinos from two nuclear power plants located 50 kilometres away will be observed, offering insights into their properties and interactions. According to project sources, this experimental setup will not only aid in determining neutrino masses but also contribute to broader physics research, including the understanding of matter-antimatter asymmetry.

Significance of JUNO

Reports indicate that this observatory will be the largest of its kind globally, with scientists expecting groundbreaking findings. By investigating antineutrinos in detail, JUNO is anticipated to enhance understanding of subatomic physics and the fundamental structure of the universe.

The collaborative efforts of international teams underscore the importance of the project in advancing neutrino research. This facility marks a major advancement in the quest to uncover the properties of neutrinos, with its findings expected to have far-reaching implications in the field of particle physics.

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