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Nov 28, 2022

For the first time, Tesla just completed a full load 500-mile trip with its Semi truck

Posted by in categories: Elon Musk, energy, sustainability, transportation

Tesla Semi carried 81,000 pounds for 500 miles on a single charge.

Just a few days before Tesla begins shipping the truck, Elon Musk has verified that Tesla Semi, the company’s Class 8 semi-truck, has successfully completed a crucial voyage.

Although there is no reason to question the outcome, it would be interesting to learn more about speed and energy usage. We are pretty interested in seeing some impartial vehicle tests.

Continue reading “For the first time, Tesla just completed a full load 500-mile trip with its Semi truck” »

Nov 28, 2022

NASA’s Orion beats Apollo 13’s distance record for a human-rated spacecraft

Posted by in category: alien life

“Houston, we have a new record.”

NASA’s Artemis I Orion capsule broke a new spaceflight record. The uncrewed Orion reached a distance from Earth of 249,666 miles (from 401,798 kilometers) on Saturday, November 26, at 10:17 am. ET, meaning it surpassed a record set by Apollo 13 in 1970 for the furthest distance traveled from Earth by a spacecraft designed to carry humans.

NASA’s Orion spacecraft broke a massive record.

Continue reading “NASA’s Orion beats Apollo 13’s distance record for a human-rated spacecraft” »

Nov 28, 2022

Apple limits airdrops from Chinese phones, kneecapping government protesters

Posted by in categories: government, mobile phones

Apple cut one of the few ways to avoid censorship in China, airdrops.

Apple’s recent iOS update quietly, and completely unannounced, stopped offering the AirDrop service to Chinese phones and tablets. Airdrops are a file transfer service that sends specific files, directly between phones, without the need for a network. In the wave of anti-government protests larger than ever before, protesters are having to communicate without the use of a crucial tool: AirDrops.

AirDrop, a file-sharing feature on Apple iOS devices, has aided dissent in many authoritarian countries. The phones form a local network of devices, that are independent of any external sources.

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Nov 28, 2022

The neural architecture of language: Integrative modeling converges on predictive processing

Posted by in categories: biotech/medical, computing, neuroscience

The neuroscience of perception has recently been revolutionized with an integrative modeling approach in which computation, brain function, and behavior are linked across many datasets and many computational models. By revealing trends across models, this approach yields novel insights into cognitive and neural mechanisms in the target domain. We here present a systematic study taking this approach to higher-level cognition: human language processing, our species’ signature cognitive skill. We find that the most powerful “transformer” models predict nearly 100% of explainable variance in neural responses to sentences and generalize across different datasets and imaging modalities (functional MRI and electrocorticography). Models’ neural fits (“brain score”) and fits to behavioral responses are both strongly correlated with model accuracy on the next-word prediction task (but not other language tasks). Model architecture appears to substantially contribute to neural fit. These results provide computationally explicit evidence that predictive processing fundamentally shapes the language comprehension mechanisms in the human brain.

Nov 28, 2022

Family Sues Stanford After Student Who Spilled Coffee on Friend’s Alleged Rapist Is Found Dead

Posted by in category: space

Scientists have failed to detect a key signal from space – and used it to explain some of the earliest parts of the universe.

The inability to pick up the signal has allowed researchers to better understand the first galaxies to exist. It is one of the first times they have been able to study the period known as the “cosmic dawn”, when the first stars and galaxies came into being.

Scientists are now able to place limits on the mass and energy coming out of those first stars and galaxies – using a counterintuitive method.

Continue reading “Family Sues Stanford After Student Who Spilled Coffee on Friend’s Alleged Rapist Is Found Dead” »

Nov 28, 2022

Higher speeds in free-space optical communications in the midinfrared band

Posted by in categories: energy, engineering, internet

Telecommunications have reshaped many aspects of our lives over the past few decades by providing incredibly convenient ways to share and access information. One of the most important enablers for this transformation has been the adoption and improvement of broadband technologies, which cram enormous amounts of data over wide frequency bands to achieve unprecedented transfer speeds. Today, most large cities have fiber optics-based networks that distribute high-speed internet directly to every home.

Unfortunately, it is not always feasible to deploy fiber optic links to and , due to the associated costs and civil engineering work required. Such places could benefit from a different approach to optical broadband communications: free-space optics. The main idea in free-space optical (FSO) communications is to set up aligned transmitter–receiver pairs where needed and use air as the medium to carry the signals.

While there are still many challenges to address in FSO systems (such as low energy efficiency, impact of weather, and high background noise), scientists worldwide are continuously trying out new ways of solving these issues and achieving higher data rates.

Nov 28, 2022

Wrinkles left over from the Big Bang may have magnetized the universe

Posted by in category: cosmology

Researchers have proposed what’s perhaps the most exotic explanation to date for the source of the universe’s seed magnetic field: cosmic strings.

Nov 28, 2022

You can explore the entire observable universe, thanks to a new interactive map

Posted by in category: cosmology

Start at the Big Bang…

“The map of the observable Universe” takes viewers on a 13.7-billion-year-old tour of the cosmos from the present to the moments after the Big Bang.

Nov 28, 2022

Transfer RNA

Posted by in category: futurism

This Video Explains Transfer RNA.

Thank You For Watching.

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Nov 28, 2022

The Friedmann equations, and how they are related to protests in China

Posted by in categories: biotech/medical, government, information science

NEW DELHI: Among all the protests that have erupted across China following the strict quarantine measures enforced by the government for Covid-19, one form that has stood out is the display of a physics equation.

In images widely being circulated on social media, students of Beijing’s Tsinghua University can be seen holding sheets on which is written one of the Friedmann equations.

What these equations have to do with the subject of the protests is open to speculation. Many on social media have suggested that it is a play on the words “free man”. Another view is that it symbolises a free and “open” China, because the Friedmann equations describe an “open” (expanding) universe.

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