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Archive for the ‘energy’ category: Page 75

May 4, 2023

Astronomers witness star devouring a planet: Possible preview of the ultimate fate of Earth

Posted by in categories: energy, space

With the power of the Gemini South Adaptive Optics Imager (GSAOI) on Gemini South, one half of the International Gemini Observatory, operated by NSF’s NOIRLab, astronomers have observed the first direct evidence of a dying star expanding to engulf one of its . Evidence for this event was found in a telltale “long and low-energy” outburst from a star in the Milky Way about 13,000 light-years from Earth. This event, the devouring of a planet by an engorged star, likely presages the ultimate fate of Mercury, Venus, and Earth when our sun begins its death throes in about five billion years.

“These observations provide a new perspective on finding and studying the billions of stars in our Milky Way that have already consumed their planets,” says Ryan Lau, NOIRLab astronomer and co-author on this study, which is published in the journal Nature.

May 3, 2023

DARPA is making Nikola Tesla’s dream of wireless energy a reality

Posted by in categories: drones, energy, military

“First of all, the environment has changed, and the need for more resilient energy transport methods for military operations is at a premium,” explained Col. Paul “Promo” Calhoun to Popular Mechanics in an exclusive interview. American forces operate globally like the special operations units he resupplied as a C-17 cargo pilot, from outposts in the South China Sea to the Iraqi desert. Since there is no simple way to power them, many forces use their radars, anti-drone microwave weapons, lasers, or other energy-intensive equipment. And with each passing year, the severity of the issue increases.

May 2, 2023

Superconductors to enable next-generation transit, energy transmission, and storage

Posted by in categories: energy, materials

~UserGI15994093/iStock.

The concept proposed by the team not only promises to reduce the operating cost of each system but also devise a way to store and transport liquified hydrogen, which is widely considered to be one of the primary sources of clean energy in the future. “The liquified hydrogen would be used to cool the superconductor guideway as it is stored and transported, reducing the need for a separate specialized pipeline system capable of cooling the fuel to 20 degrees Kelvin, or minus 424 Fahrenheit,” said a media release.

May 2, 2023

Strange but true: the expanding Universe doesn’t conserve energy

Posted by in category: energy

The conservation of energy is one of the most fundamental laws governing our reality. But in the expanding Universe, that’s just not true.

Apr 30, 2023

Quantum mechanics gives us power, but no answers

Posted by in categories: energy, quantum physics

The quest to understand quantum mechanics has led to remarkable technological advancements, granting us power and control over the natural world. However, despite these successes, the paradoxes and mysteries surrounding the theory continue to challenge our understanding of reality. This raises the question of whether science, particularly quantum mechanics, provides us with true comprehension of the world or merely equips us with power without deeper understanding, writes John Horgan.

Apr 30, 2023

MIT’s Tiny Terahertz Receiver Preserves IoT Battery Life

Posted by in categories: bioengineering, education, energy

Researchers demonstrate a low-power “wake-up” receiver one-tenth the size of other devices.

MIT

MIT is an acronym for the Massachusetts Institute of Technology. It is a prestigious private research university in Cambridge, Massachusetts that was founded in 1861. It is organized into five Schools: architecture and planning; engineering; humanities, arts, and social sciences; management; and science. MIT’s impact includes many scientific breakthroughs and technological advances. Their stated goal is to make a better world through education, research, and innovation.

Apr 29, 2023

Cutting-edge magnet technology for fusion power to be tested in the US

Posted by in category: energy

Tokamak Energy announced through a press release on Thursday that its magnet technology will be exposed to extreme conditions to test lifetime fusion power plant performance in a US laboratory.

Apr 29, 2023

Semi-Trucks in California Can Now Run on Hydrogen Thanks to Toyota

Posted by in categories: energy, transportation

The California Air Resources Board has issued an Executive Order for Toyota’s new hydrogen fuel cell swap kit for Class 8 heavy vehicles like semi trucks and busses. The kit turns diesel trucks into zero emission vehicles.

Apr 26, 2023

Vast Potential — Researchers Create a New Type of Laser

Posted by in categories: energy, materials

Researchers from EPFL and IBM have created a novel laser that could revolutionize optical ranging technology. This laser is constructed from lithium niobate, a material frequently utilized in optical modulators to regulate the frequency or intensity of light transmitted through a device.

Lithium niobate is highly valued for its ability to manage large amounts of optical power and its high “Pockels coefficient.” This allows the material to alter its optical properties when an electric field is applied to it.

The researchers achieved their breakthrough by combining lithium niobate with silicon nitride, which allowed them to produce a new type of hybrid integrated tunable laser. To do this, the team manufactured integrated circuits for light (“photonic integrated circuits”) based on silicon nitride at EPFL, and then bonded them with lithium niobate wafers at IBM.

Apr 25, 2023

Two massive gravity batteries are nearing completion in the US and China

Posted by in categories: energy, sustainability

The system helps to plug the gap when it comes to renewable energy sources.

As a solution to the unpredictable nature of renewable energy sources like solar and wind power, gravity batteries are being pitched as an ideal remedy. To further this cause, Swiss startup Energy Vault is now completing two such units, which are situated near Shanghai in China and Texas in the United States.

The basic idea behind a gravity battery system is to lift a heavy object, such as a large mass of concrete or a weight, on a pulley, using energy from a power source. When energy is needed, the thing can fall, and the potential energy is converted back into electricity.

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