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Archive for the ‘energy’ category: Page 133

Aug 30, 2022

Your home could be heated

Posted by in category: energy

An Israeli energy startup has developed a microturbine that can run on 50% hydrogen gas – next up one that runs on 100% of the clean green gas.

Aug 30, 2022

Spectroscopy That Doesn’t Scratch the Surface

Posted by in categories: energy, physics

Researchers have demonstrated a way of measuring the electronic states of a material’s surface while avoiding signal contaminations from deeper layers.

The electronic states of a material’s surface might only be 2D, but they offer a depth of interesting physics. Such states, which are distinct from those of the material’s bulk, dominate many phenomena, such as electrical conduction, magnetism, and catalysis, and they are responsible for nontrivial surface effects found in topological materials and systems with strong spin-orbit interaction. Surface electronic states also control the properties of so-called 2D materials, such as graphene. To understand surface phenomena and harness them in practical devices, researchers chiefly rely on photoemission spectroscopy, which measures the energy and momentum of electrons emitted when photons hit the material. The high resolution with which electron energy and momentum can be characterized allows physicists to measure both the band structure and the density of states (DOS) in the few surface layers where escaping photoelectrons originate.

Aug 29, 2022

Media goes nuts over Elon Musk calling for more oil and gas, but here’s the full quote

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

https://youtube.com/watch?v=Puk1doe4kvw

The media is going nuts over Elon Musk calling for more oil and gas at an energy conference in Norway, but the full quote is not being widely reported and brings some important context.

Earlier this year, Elon Musk called to drill for more oil, which raised a few eyebrows, but it was in the context of the Russian invasion of Ukraine and how it sent gas prices skyrocketing:

Continue reading “Media goes nuts over Elon Musk calling for more oil and gas, but here’s the full quote” »

Aug 29, 2022

Wave-riding generators promise the cheapest clean energy ever

Posted by in categories: energy, sustainability

Sea Wave Energy Ltd (SWEL) has been working for more than a decade on a floating wave energy device it calls the Waveline Magnet. With several prototypes tested on-and off-shore, the company claims it delivers “ultra low cost,” with high output.

Solar electricity generation is proliferating globally and becoming a key pillar of the decarbonization era. Lunar energy is taking a lot longer; tidal and wave energy is tantalizingly easy to see; step into the surf in high wave conditions and it’s obvious there’s an enormous amount of power in the ocean, just waiting to be tapped. But it’s also an incredibly harsh and punishing environment, and we’re yet to see tidal or wave energy harnessed on a mass scale.

Continue reading “Wave-riding generators promise the cheapest clean energy ever” »

Aug 29, 2022

Defenseless Against Hypersonic Missiles, US Navy Turns To ‘Faster & Lethal’ DEWs To Battle China, Russia

Posted by in categories: energy, military

The US Navy is exploring the novel technology of Directed Energy Weapons (DEWs) against Chinese and Russian hypersonic weapons in the absence of a potent defense against these highly maneuverable missiles.

The top admiral of the US Navy, Michael Gilday stated that directed energy systems are being developed as a potential countermeasure against hypersonic missiles, calling the advancements made by Russia and China in hypersonic weapon technology “a significant concern.”

The development of devices that would use high-energy lasers or high-power microwaves to remove a threat is a major priority for the Navy, according to Adm. Michael Gilday, Chief of Naval Operations, who is also the Chief of US Missile Defense Agency.

Aug 29, 2022

Geely’s Zeekr will deliver EVs with 600+ mile range, CATL battery tech in Q1 2023

Posted by in category: energy

The CATL tech with impressive claims for energy density, cooling, and range will first go into the Chinese premium EV brand.

Aug 28, 2022

Startup’s Hydrogen Breakthrough May Give New Life to Coal Plants

Posted by in categories: energy, innovation

Australian lab uses catalyst to generate 700ºC heat from hydrogen that could be used to retrofit power stations.

Aug 28, 2022

In the Ukraine war, a battle for the nation’s mineral and energy wealth

Posted by in categories: economics, energy

Kyiv will lose nearly two-thirds of its deposits if the Kremlin is successful in annexing Ukrainian territory.

At least $12.4 trillion worth of Ukraine’s essential natural resources, including energy and mineral deposits, are now under Russian control.

“The Kremlin is robbing Ukraine” of its natural resources, the backbone of it’s economy, according to an analysis by SecDev posted by Washington Post on August 10.

Continue reading “In the Ukraine war, a battle for the nation’s mineral and energy wealth” »

Aug 27, 2022

The creation of the metaverse: What’s real, what’s hype and where we’re headed

Posted by in categories: energy, internet

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To those that were part of the dot-com era tech scene, 2022 has a familiar energy. But now it’s all about the metaverse. And, just as they did in 1993 when the World Wide Web was launched into the public domain, many are asking themselves, “what is it, anyway?” What’s real, what’s hype and where are we headed?

The truth is, much like Internet 1.0 and all of its subsequent iterations, the metaverse is being defined as it’s being built. And contrary to what many believe, it’s more than just VR headsets and avatars. The metaverse is a place, an ecosystem, and above all else, an entirely new dimension. But to better understand this, it’s important to know how the metaverse is being developed.

Aug 27, 2022

Battery made of aluminum, sulfur and salt proves fast, safe and low-cost

Posted by in categories: energy, sustainability, transportation

Engineers at MIT have developed a new battery design using common materials – aluminum, sulfur and salt. Not only is the battery low-cost, but it’s resistant to fire and failures, and can be charged very fast, which could make it useful for powering a home or charging electric vehicles.

Lithium-ion batteries have dominated the field for the last few decades, thanks to their reliability and high energy density. However, lithium is becoming scarcer and more expensive, and the cells can be hazardous, exploding or bursting into flames if damaged or improperly used. Cheaper, safer alternatives are needed, especially as the world transitions towards renewable energy and electric vehicles.

So the MIT team set out to design a new type of battery out of readily available, inexpensive materials. After a search and some trial and error, they settled on aluminum for one electrode and sulfur for the other, topped off with an electrolyte of molten chloro-aluminate salt. Not only are all of these ingredients cheap and common, but they’re not flammable, so there’s no risk of fire or explosion.