The hybrid-integrated electro-optic frequency comb generator. More than 2000 comb lines covering 450nm spectrum can be generated within a footprint smaller than 1cm2. Credit: Junyin Zhang (EPFL) Frequency combs are revolutionizing optics, from telecommunications to…
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Tailored terahertz radiation excites the antiferromagnetic material, driving its collective atomic vibrations. During such coherent motion of atoms, the interatomic distances are modulated in a specific manner, altering magnetic interactions and inducing net magnetization. Credit:…
Reports that Fitbit’s Ionic smartwatch was overheating began in 2018 and continued into 2020. But according to U.S. officials, the company did not quickly report, as the law requires, that the battery inside the watch…
On Tuesday, the day after the inauguration of President Donald J. Trump, many Instagram and Facebook users found themselves following him on the social media apps even though they had not signed up to do…
Still looking for a New Year’s resolution for self-improvement? Consider keeping a journal, which studies have shown might help with one’s mental well-being and anxiety issues, while also providing a creative outlet for personal expression….
Feeling the sudden need to save your TikTok videos in case the site abruptly goes away? Here are a few methods for nontechnical users who want copies of the videos they personally uploaded or made…
A picture is worth a thousand words, but you don’t need to type any of them to search the internet these days. Boosted by artificial intelligence, software on your phone can automatically analyze objects live…
Over the summer, Laura Marciano, a researcher at Harvard, interviewed 500 teenagers for a continuing study investigating the link between technology and loneliness. The results were striking. For several weeks, the teenagers, who were recruited…
Losing a smartphone or tablet stuffed with your life’s details can be a nightmare, but your privacy may also be at risk in less obvious situations — like if you leave your unlocked phone unattended…
After an hour or so of scrolling through Bluesky the other night, I felt something I haven’t felt on social media in a long time: free. Free from Elon Musk, and his tedious quest to…
