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Archive for the ‘energy’ category: Page 173

Feb 12, 2021

Bladeless Turbines For Renewable Energy

Posted by in categories: energy, sustainability

Bladeless turbines for wind energy. 😃

Feb 11, 2021

Linus Tech Tips reviews SpaceX’s Starlink Internet Service [VIDEO]

Posted by in categories: energy, internet, military, satellites

😃


Canadian YouTuber Linus Sebastián reviewed SpaceX’s Starlink Internet on his Linus Tech Tips channel (video below). SpaceX currently operates approximately 1085 internet-beaming Starlink satellites in low Earth orbit that will be part of a constellation of over 4400 satellites designed to connect the planet to the world wide web. To connect to space-based internet Starlink customers use a dish antenna and Wi-Fi router device. The company says the dish antenna is more advanced than what is currently in-use aboard fighter jets. The dish features a phased-array antenna, capable of transmitting and receiving signal from all directions as the satellites move across the sky. This week SpaceX started to accept preorders of the service via Starlink.com.

Linus Tech Tips created a great review video in which he tests Starlink’s speed and also talks about important aspects of the Starlink constellation, including a brief discussion on how the network works. In the video, Linus unboxes the Starlink Kit that costs $499USD, it includes a dish antenna, mounting equipment, power supply, and Wi-Fi router/modem device. The Starlink broadband internet service has no data cap, priced at $99USD per month. Linus and his team install the dish outdoors on top of the roof and connect to the network. First, he used the service to play multiple 4K YouTube videos at once, with good results. He just noticed a small lag when trying to load YouTube thumbnails and comments as four high-definition videos played simultaneously. Then Linus ran an online speed test, Starlink provided him with internet download speed of around 138 megabits per second (Mbps) and latency of 27 milliseconds (ms).

Feb 10, 2021

How US Grid Operators Plan To Tackle Energy Storage at Gigawatt Scale

Posted by in category: energy

Batteries and hybrid renewables-plus-storage projects will be a massive grid resource. Transmission grids and energy markets will need to adapt.

Feb 10, 2021

Baja 1000 Cybertruck Opponent Is No Buggy: It’s A Fuel Cell Pickup Truck

Posted by in categories: Elon Musk, energy, transportation

After Jim Glickenhaus defied Elon Musk to pit the Cybertruck against the SCG Boot at the Baja 1000, he revealed his car will be a fuel cell pickup truck.

Feb 9, 2021

Researchers control a magnet’s state

Posted by in categories: energy, materials

An international team led by researchers of Delft University of Technology (TU Delft) has managed to manipulate the magnetic state of a magnetic material by optically shaking it. The whole process happens within an extremely short time frame of less than a few picoseconds. In times of stalling efficiency trends of current technology, such atomically-driven ultrafast control of magnetism opens broad new vistas for information technology. The results, which have been published in Nature Materials, could eventually lead to fast and energy-efficient data processing technologies, which are essential to keep up with our data hunger.

Feb 7, 2021

Hydrogen Fuel Cell Waste Truck takes to the Streets of Groningen

Posted by in categories: energy, transportation

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Feb 7, 2021

Infinite Power Cell

Posted by in category: energy

This is “Infinite Power Cell” by SnapWeb on Vimeo, the home for high quality videos and the people who love them.

Feb 6, 2021

New fiber optic temperature sensing approach to keep fusion power plants running

Posted by in categories: electronics, energy

The pursuit of fusion as a safe, carbon-free, always-on energy source has intensified in recent years, with a number of organizations pursuing aggressive timelines for technology demonstrations and power plant designs. New-generation superconducting magnets are a critical enabler for many of these programs, which creates growing need for sensors, controls, and other infrastructure that will allow the magnets to operate reliably in the harsh conditions of a commercial fusion power plant.

Feb 6, 2021

Denmark will build a wind-generating artificial island in the North Sea

Posted by in category: energy

Denmark will build a wind-generating artificial Island. This green energy hub expected to supply 10GW.


The long-rumored island is expected to begin operations in 2033.

Feb 5, 2021

Experimental “blowhole” wave energy generator goes online down under

Posted by in category: energy

A 200-kilowatt demonstration version of Wave Swell Energy’s fascinating “blowhole” power generator has been deployed at Grassy Harbour on King Island, off the Australian island state of Tasmania and will be connected to the grid in the coming months.