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Archive for the ‘space’ category: Page 169

Sep 23, 2023

Stanford engineers invent a solar panel that generates electricity at night

Posted by in categories: particle physics, solar power, space, sustainability

“If you can get up to a watt per square meter, it would be very attractive from a cost perspective,” Assawaworrarit says.

The invention taps into a source of energy that’s easily overlooked

The Earth is constantly receiving a tremendous amount of energy from the Sun, to the tune of 173,000 terrawatts. Clouds, particles in the atmosphere, and reflective surfaces like snow-covered mountains immediately reflect 30 percent of that energy out into space. The rest of it ends up warming the land, oceans, clouds, atmosphere, and everything else on the planet.

Sep 23, 2023

Saudi Arabia to resume building the world’s tallest tower

Posted by in categories: business, economics, space

Standing 3,280 feet (1,000 meters) tall, the Jeddah Tower will dwarf the Burj Khalifa by over 560 feet (172 m).

Jeddah Economic Company (JEC), the firm behind the ambitious Jeddah Tower Project in Saudi Arabia, has announced the resumption of work on the world’s tallest building, media reports have confirmed. The project that began in 2010 came to an abrupt halt in 2017.

Countries in the Middle East have been pouring money into ambitious projects to attract tourism and businesses and reduce their dependence on oil exports for income. The city of Dubai is replete with examples of structures meant to attract people from all over the world, whether one looks at the Palm Islands or the Moon-themed resort.

Sep 23, 2023

Saturn 3 (Kirk Douglas) 1980

Posted by in categories: robotics/AI, space

A depiction of a robot with human neurons.

Sep 23, 2023

The loss of dark skies is so painful, astronomers coined a new term for it

Posted by in categories: climatology, space, sustainability

Humanity is slowly losing access to the night sky, and astronomers have invented a new term to describe the pain associated with this loss: “noctalgia,” meaning “sky grief.”

Along with our propensity for polluting air and water and the massive amounts of carbon we’re dumping into the atmosphere to trigger climate change, we have created another kind of pollution: light pollution.

Sep 23, 2023

Zentropy — A New Theory That Could Transform Material Science

Posted by in categories: science, space

The universe naturally gravitates towards disorder, and only through the input of energy can we combat this inevitable chaos. This idea is encapsulated in the concept of entropy, evident in everyday phenomena like ice melting, fires burning, and water boiling. However, zentropy theory introduces an additional layer to this understanding.

This theory was developed by a team led by Zi-Kui Liu, the distinguished Dorothy Pate Enright Professor of Materials Science and Engineering at Penn State. The “Z” in zentropy is derived from the German term “Zustandssumm,” which translates to the “sum over states” of entropy.

Alternatively, Liu said, zentropy may be considered as a play on the term “zen” from Buddhism and entropy to gain insight on the nature of a system. The idea, Liu said, is to consider how entropy can occur over multiple scales within a system to help predict potential outcomes of the system when influenced by its surroundings.

Sep 23, 2023

NASA’s 7-year mission concludes with asteroid sample returning to Earth this weekend

Posted by in category: space

A seven-year NASA mission is only just beginning as a capsule lands on Earth this weekend bringing with it some valuable cargo.

Sep 22, 2023

James Webb Space Telescope detects 1st evidence of carbon on Jupiter’s icy moon Europa

Posted by in category: space

The discovery made using NASA’s powerful space telescope brings scientists a step closer to determining if the salty water oceans of Europa could support life.

Sep 22, 2023

Nuclear ‘pasta’ cooked up by dead stars could unravel the secrets of stellar afterlife

Posted by in categories: particle physics, space

In the extreme hearts of neutron stars, fundamental particles are twisted into strange ‘pasta’ shapes that could reveal untold secrets about how dead stars evolve.

Sep 22, 2023

Tom Hanks Says He’d Clean Space Toilets For The Chance To Be An Astronaut

Posted by in categories: entertainment, space

The actor told The Telegraph what he could offer NASA while promoting his immersive film “The Moonwalkers.”

Sep 20, 2023

Photonic chips could lower energy consumption from data centres

Posted by in categories: computing, space

Data centre energy consumption could be cut with new, ‘breakthrough’ photonic chips that are more efficient than today’s chips.

Data centres can consume up to 50 times more energy per square foot of floor space than a typical office building and account for roughly 2 per cent of all electricity use in the US.

In recent years, the number of data centres has risen rapidly due to soaring demand from the likes of Facebook, Amazon, Microsoft and Google.

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