Focusing and defocusing light without a lens: First demonstration of the structured Montgomery effect in free space

Applied physicists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have demonstrated a new ...
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How the web is learning to better protect itself

More than 35 years after the first website went online, the web has evolved from static pages to complex interactive systems, ...

Why our ancestors had straight teeth without braces

“Early humans used chewing sticks, twigs, bird feathers, animal bones, and plant fibers to remove debris from their teeth,” ...

News sites are locking out the Internet Archive to stop AI crawling. Is the ‘open web’ closing?

When the World Wide Web went live in the early 1990s, its founders hoped it would be a space for anyone to share information and collaborate. But today, the free and open web is shrinking. The ...