Environment
Circular cities go ‘green’ by reusing things over and over again
To cut their wastes to nearly zero, circular cities are launching projects to repair, reuse and recycle virtually everything.
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To cut their wastes to nearly zero, circular cities are launching projects to repair, reuse and recycle virtually everything.
These super high-tech timepieces use the chemical element thorium to keep time. And as the clocks improve, they could help solve some mysteries in physics.
Scientists are testing whether plastic pollution from the ocean can be transformed into safe and durable highways.
Methanol is used in plastics, paints and as a race car fuel. It’s been hard to make. But engineers have found a simple trick: Add lightning to methane.
Special pockets in these molecular structures make them useful in medicine, climate science and more.
Players often upload pictures of landmarks. AI can use these to build a virtual 3-D model of a city, which robots might use like a map to navigate the real thing.
The top three winners each won at least $80,000. Other teen finalists shared in more than $7 million in prizes at this international science fair.
High-tech turfgrass carpets will be unrolled in 16 stadiums across North America — including five that must survive despite getting no natural sunlight.
It registers nails' touch by disrupting the touchscreen’s electric field. But this high-tech varnish isn’t ready to hit store shelves yet.
A teen’s software could help guard AI that handles sensitive data against sneaky “prompt injection attacks.”