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Feb 26, 2022
James Webb Space Telescope is nearly halfway through its mirror alignment stages
Posted by Genevieve Klien in category: space
Stars are getting sharper in the James Webb Space Telescope’s field of view.
The team recently completed the third of seven planned steps to align the 18 hexagonal segments of Webb’s mirror, marking nearly the halfway point in a complex, weeks-long process.
Feb 26, 2022
Google’s Sundar Pichai Just Announced a $100 Million Educational Fund. It Might Mean the Beginning of the End for College
Posted by Genevieve Klien in categories: business, education
While college tuition rises, businesses like Google are offering their own credentials — for a lot less. It might be the educational model we’ve needed for decades.
Feb 26, 2022
Ukraine supplies 90% of U.S. semiconductor-grade neon (and what it means to chip supply chain)
Posted by Genevieve Klien in category: computing
Ukraine supplies more than 90% of the US’s semiconductor-grade neon, a gas integral to the lasers used in the chip-making process,. Now what?
Feb 26, 2022
Watch: Drones capture an epic new 360-degree video of SpaceX Starship
Posted by Atanas Atanasov in categories: drones, space travel
SpaceX prepares its first orbital Starship flight.
Drone capture 360-degree video of SpaceX Starship.
SpaceX is currently developing its Starship rocket at the firm’s Starbase facility in Texas. The project could lead to a giant, fully-reusable rocket system.
Feb 26, 2022
Russia Intensifies Censorship Campaign, Pressuring Tech Giants
Posted by Shubham Ghosh Roy in category: law
Google, Apple and others were warned that they must comply with a new law, which would make them more vulnerable to the Kremlin’s censorship demands.
Feb 26, 2022
Ukraine appeals to Elon Musk for Starlink satellites to maintain Internet
Posted by Shubham Ghosh Roy in categories: Elon Musk, internet, satellites
Vice Prime Minister Fedorov reached out to Elon Musk for Starlink internet service in a last-ditch effort to restore internet access. As Russian forces approach Kyiv, Ukraine has been suffering internet problems.
Mykhailo Fedorov, Ukraine’s Vice Prime Minister and Minister of Digital Transformation contacted SpaceX CEO Elon Musk about the company’s Starlink satellite broadband service.
Continue reading “Ukraine appeals to Elon Musk for Starlink satellites to maintain Internet” »
Feb 26, 2022
Here’s How Those Battery-Free Flashing Phone Stickers Worked
Posted by Shubham Ghosh Roy in categories: computing, mobile phones
The late 90s and early 2000s were a breakout time for mobile phones, with cheap GSM handsets ushering in the era in which pretty much everybody had a phone. Back then, a popular way to customize one’s phone was to install a sticker that would flash when the phone rang. These required no batteries or any other connection to the phone, and [Big Clive] has dived in to explain how they worked.
It’s an old-fashioned teardown that requires a bit of cutting to get inside the sticker itself. A typical example had three LEDs in series for a total voltage drop of around 7V, hooked up to two diodes and a PCB trace antenna. A later evolution used raw unpackaged components bonded to the PCB. Future versions went down to a single diode, using the LEDs to serve as the second. The basic theory was that the PCB traces would pick up RF transmitted by the phone when a call was coming in, lighting the LEDs.
Continue reading “Here’s How Those Battery-Free Flashing Phone Stickers Worked” »