NASA testing two-way, high-speed laser space communication system

NASA will soon demonstrate a laser-based communication system between ground facilities and the International Space Station (ISS). The technology will boost data transmission speeds by 10 to 100 times the current capabilities, potentially paving the wa… Continue reading NASA testing two-way, high-speed laser space communication system

“Pseudogravity” in crystals can bend light like black holes

Scientists in Japan have managed to manipulate light as though it was being influenced by gravity. By carefully distorting a photonic crystal, the team was able to invoke “pseudogravity” to bend a beam of light, which could have useful applications in … Continue reading “Pseudogravity” in crystals can bend light like black holes

“Invisible grating” bends laser using just air and sound

Guiding lasers where they need to go is a key part of optics systems, and now engineers at DESY have developed a way to bend laser beams without anything touching them. The light is deflected using an invisible grating made of air shaped by acoustics.C… Continue reading “Invisible grating” bends laser using just air and sound

Review: Presbyond surgery gave my eyes two different focal points

All I wanted to do was get rid of my glasses, but when my local laser eye surgery clinic recommended some odd-sounding advanced Presbyond treatment developed by Zeiss, I said sure, if that’s what the cool kids are getting. Here’s what’s happened.Contin… Continue reading Review: Presbyond surgery gave my eyes two different focal points

World’s smallest wine glass toasts to nanoscale silica 3D printing

Left: The tiny, 3D-printed wine glass. Right: An optical resonator, an example of a fiber optics component that can be 3D printed through the new technique

Scientists have created the world’s smallest wine glass, narrower than a human hair. Made out of actual glass, the model is a test run of an advanced new 3D-printing process that could help make nanoscale glass components for electronic and optical devices.

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Souped-Up Reflective Sensor Uses Itself for Wireless Programming

Proximity sensors are common enough in automation projects that we hardly give them a second thought — pick something with specs that match the job and move on. But they …read more Continue reading Souped-Up Reflective Sensor Uses Itself for Wireless Programming

Hackaday Links: June 4, 2023

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A report released this week suggests that 50 flights into its five-flight schedule, the Mars helicopter might be starting to show its age. The report details a protracted communications outage …read more Continue reading Hackaday Links: June 4, 2023