lens
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Physics
Prototype lens can block wavelengths that cause epileptic seizures
Graphical summary. Credit: Cell Reports Physical Science (2024). DOI: 10.1016/j.xcrp.2024.102158 People with photosensitive epilepsy could benefit from prototype glasses with lenses that block wavelengths known to cause seizures in some people. In a study published in Cell Reports Physical Science, researchers from the University of Glasgow and the University of Birmingham have developed a prototype liquid crystal lens that they…
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Space & Cosmos
Ion engines could take us to the Sun’s gravitational lens within 13 years, paper suggests
ion thruster. Credit: NASA Sending objects to other stars is still science fiction. But with some specific missions, you might be able to get at least halfway there. These “interstellar precursor missions” involve trips to the Sun’s gravitational lensing point, which is 550 astronomical units from the Sun. This is further away than any previous man-made object, including Voyager. Getting…
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