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Watch how a black hole destroys stars in this supercomputer simulation

Adam Hunt | Science, Space, Health & Robotics | Mon, Nov 29 2021 5:45 AM CST

Researchers have published a new study in The Astrophysical Journal, simulating tidal disruptions and analyzing their dependence on stellar and black hole mass.

Watch how a black hole destroys stars in this supercomputer simulation 01 | TweakTown.com

Using supercomputer simulations, the research team modeled the outcome of eight different stars approaching a black hole with a mass of one million times our Sun. All of the stars are stretched and deformed by the gravitational forces of the black hole, undergoing spaghettification, with gravity destroying some entirely. When destroyed in a "tidal disruption event," the star is pulled apart into a long stream of gas and absorbed by the black hole.

The simulations are the first to combine realistic stellar density models with the physical effects of Einstein's general theory of relativity. Simulated stars had masses ranging from one-tenth to ten times the mass of the Sun. The team found that the star's survival depends more on its density than its mass alone.

Continue reading: Watch how a black hole destroys stars in this supercomputer simulation (full post)

Samsung Lifestyle TVs up to 33% off in Amazon Black Friday deals

Adam Hunt | Deals | Mon, Nov 29 2021 5:25 AM CST

In addition to Samsung's more traditional QLED offerings, which have also gone on sale on Amazon for Black Friday, Samsung's range of lifestyle TVs are up for grabs with some sweet deals.

Samsung Lifestyle TVs up to 33% off in Amazon Black Friday deals 01 | TweakTown.com

The lifestyle range includes The Frame, which mimics a regular photo frame and can be put into Art Mode to display art and complement the room's aesthetic with high-quality paintings or photographs. The Frame is available in 85", 75", 65", 55", 50", and 43" sizes.

The Terrace is another series under the lifestyle range designed for outdoor use and weather resistance. It comes in 75", 65", and 55" sizes for partial sun rating and 75" and 65" for full sun variants.

The Sero comes only in a 43" size and rotates on its stand into a vertical orientation, optimized for mobile.

The Serif is available in 65", 55", and 43" sizes and was designed by the Bouroullec Brothers. It comes with long legs to stand as an art piece anywhere in the room.

These TVs are all built with QLED technology, HDR capability, and display at a 4K (3840 x 2160) resolution.

Continue reading: Samsung Lifestyle TVs up to 33% off in Amazon Black Friday deals (full post)

Trees are greening sooner than they should be, and new data shows why

Adam Hunt | Science, Space, Health & Robotics | Mon, Nov 29 2021 5:05 AM CST

Lin Meng won the grand prize for 2021's Science & SciLifeLab Prize for Young Scientists for her research into how city environments impact tree phenology.

Trees are greening sooner than they should be, and new data shows why 01 | TweakTown.com

"Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonal and interannual variations in climate, as well as habitat factor," according to Wikipedia. Meng set out to determine how global warming and bright artificial lighting conditions in cities changed when trees started growing leaves in spring.

Previous research has shown that higher temperatures impact vegetation growth in cities, so the following question is how global warming affects that. Meng analyzed satellite data spanning 2001 to 2014 and 85 cities in the United States to find when trees began growing leaves. Trees "greened up" an average of six days earlier and were responding more rapidly to climate change in urban areas than in rural areas.

Continue reading: Trees are greening sooner than they should be, and new data shows why (full post)

Huge deals on Shure headphones for Black Friday, up to 29% off!

Adam Hunt | Deals | Mon, Nov 29 2021 4:45 AM CST

Black Friday is here on Amazon, and Shure has listed its iconic SE range of earphones for some significant discounts.

Huge deals on Shure headphones for Black Friday, up to 29% off! 01 | TweakTown.com

The SE range of in-ear headphones has a professional form factor perfect for live performers and studio monitoring, with wires arching up and around the ear to trail away behind the body subtly. All of the headphones in the range have wires which can be disconnected at the base of each earpiece, so you never have to worry about binning any of them due to broken cables, which is super reassuring given the cost of the higher-end offerings.

This interchangeability also enables Bluetooth via an accessory Shure also sells. As you opt for more expensive options, more drivers are added to each earpiece, for up to four per earpiece, dedicated to different frequencies for detailed and expansive sound separation.

Continue reading: Huge deals on Shure headphones for Black Friday, up to 29% off! (full post)

New Russian docking module Prichal successfully joins the ISS

Adam Hunt | Science, Space, Health & Robotics | Mon, Nov 29 2021 4:25 AM CST

Prichal, the new Russian docking module, has successfully arrived at the International Space Station (ISS).

New Russian docking module Prichal successfully joins the ISS 01 | TweakTown.com

"It was as flawless a docking as you can have," said Rob Navias of NASA.

Prichal joined with Russia's Nauka module aboard the ISS at 15:19 UTC, slightly ahead of schedule, with the docking hooks closing at 15:25 UTC. The module arrived with around 2,200 pounds (1,000 kilograms) of cargo and supplies for the crew aboard the ISS.

The Prichal module expands the docking capabilities of the ISS, adding six new ports for the Russian portion, with five of them available for newly arriving spacecraft. It can also transfer fuel to Nauka, the module it has docked to after Progress 78, the previously docked spacecraft, left to make room for Prichal's arrival.

Continue reading: New Russian docking module Prichal successfully joins the ISS (full post)

Black Friday is here on Amazon! Get up to 31% off on Corsair products

Adam Hunt | Deals | Mon, Nov 29 2021 4:05 AM CST

Black Friday has arrived! Corsair has listed a range of its products on Amazon for discounted prices; get them while you can!

Black Friday is here on Amazon! Get up to 31% off on Corsair products 01 | TweakTown.com

For sale is a selection of headphones, keyboards, and a mouse and power supply. The HS80, HS75, HS60, Void Pro, Void Elite, and Void RGB Elite are available for between $119.99 and $54.99. The Void RGB Elite is available in wired and wireless versions, while the non-RGB variant is wired.

The available keyboards include the K95, a mechanical keyboard, with Cherry MX Brown switches or Cherry MX Blue variants available. The K55 has three available variants, RGB, RGB Pro, and RGB Pro XT. Both the K95 and K55 come with RGB and a detachable palm rest.

Corsair's mouse on sale is the Scimitar Pro RGB and the Elite, which comes in cheaper than the Pro with its discount. Both boast 12 programmable side buttons, while the Elite has an 18,000 DPI sensor compared to the Pro's 16,000 DPI.

The only currently discounted power supply Corsair is offering is the 850 watt variant of its HX series for 20% off.

Continue reading: Black Friday is here on Amazon! Get up to 31% off on Corsair products (full post)

Remnant magnetism may be to the key to finding hidden meteorite sites

Adam Hunt | Science, Space, Health & Robotics | Mon, Nov 29 2021 3:45 AM CST

A crater may disappear long after a meteorite impact, but a new method of finding impact sites despite this has been uncovered.

Remnant magnetism may be to the key to finding hidden meteorite sites 01 | TweakTown.com

Gunther Kletetschka of the University of Alaska Fairbanks Geophysical Institute has identified the significantly reduced level of natural remnant magnetization in rock as the key to defining a meteorite impact site. Rocks naturally have 2-3% remnant magnetization, referring to the number of magnetic mineral grains they contain, typically magnetite, hematite, or both. When collecting samples from the Santa Fe Impact Structure in New Mexico (pictured above), Kletetschka found they contained less than 0.1% magnetism.

Kletetschka determined that during a meteorite impact, the plasma created and changes in the electrons within the atoms of the rocks being struck decreased their magnetism. The Santa Fe Impact Structure consists of many shatter cones, which are believed to form only when rock is subjected to high pressure and high-velocity shockwaves, for example, a meteorite impact. Before these telltale shatter cones are uncovered, this discovery allows scientists to identify an impact site that has eroded and become unrecognizable or define the extent of an already identified impact site.

Continue reading: Remnant magnetism may be to the key to finding hidden meteorite sites (full post)

LG OLED C1 series up to 28% off on Amazon for Black Friday deals

Adam Hunt | Deals | Mon, Nov 29 2021 3:25 AM CST

Amazon's expansive Black Friday deals continue, now serving up LG's C1 OLED series of TVs for up to 28% off.

LG OLED C1 series up to 28% off on Amazon for Black Friday deals 01 | TweakTown.com

LG continues to be the only company manufacturing OLED panels, so if that's what you're after, you can't go wrong getting it from the source. For between 9% and 28% off, you can get 48", 55", 65", 77" and 83" options.

All of the TVs in this series come with Alexa and other AI assistant support built-in, 4K (3840 x 2160) resolution, 120Hz refresh rate, upscale content using the Alpha 9 Gen4 AI processor, and do much more.

With HDMI 2.1, gamers will be happy to know their next-generation consoles will be leveraged to their fullest extent by this TV. Gamers or not, the viewing experience owing to the infinite contrast ratio and brilliant color reproduction on display in an OLED TV should make anyone happy with one of these deals.

Continue reading: LG OLED C1 series up to 28% off on Amazon for Black Friday deals (full post)

Plot of virtual Metaverse land sells for millions, making 'history'

Jak Connor | Cryptocurrency & Mining | Mon, Nov 29 2021 2:33 AM CST

A milestone in the world of cryptocurrency has recently been reached as a blockchain investor has announced the acquisition of Metaverse "land".

Plot of virtual Metaverse land sells for millions, making 'history' 01 | TweakTown.com

Tokens.com has announced it has acquired a plot of "land" within the Decentraland metaverse, in a specific area that is titled "Fashion Street District". The land purchased within the metaverse measures in at 6,090 square feet of digital land and cost Tokens.com 618,000 MANA, which is about $2.4 million dollars. Token.com has said that it will use the plot of land to host virtual fashion shows where brands will show off their fashion designs digitally.

Decentraland head of content Sam Hamilton recently said in the press release regarding the announcement, "Fashion is the next massive area for growth in the Metaverse. So it's timely, and very exciting, that [we've] made such a decisive commitment in the heart of Decentraland's fashion precinct."

Continue reading: Plot of virtual Metaverse land sells for millions, making 'history' (full post)

Cryptocurrency miners busted, hacked Google servers used for mining

Jak Connor | Cryptocurrency & Mining | Mon, Nov 29 2021 2:32 AM CST

Google's Cybersecurity Action team has released a report called the "Threat Horizons Executive Snapshot", which details ongoing online threats through trend tracking and other data pools.

Cryptocurrency miners busted, hacked Google servers used for mining 01 | TweakTown.com

The report was included threat intelligence observations from the Threat Analysis Group, Google Cloud Threat, Intelligence for Chronicle, Trust and Safety group, and other internal teams. Cryptocurrency mining abuse was specifically mentioned in the report, with it stating that bad actors were observed mining cryptocurrency within a compromised Cloud instance.

The report states, "Of 50 recently compromised GCP instances, 86% of the compromised Cloud instances were used to perform cryptocurrency mining, a Cloud resource-intensive, for-profit activity. Additionally, 10% of compromised Cloud instances were used to conduct scans of other publicly available resources on the Internet to identify vulnerable systems, and 8% of instances were used to attack other targets.

Continue reading: Cryptocurrency miners busted, hacked Google servers used for mining (full post)

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