Engineering
Nuclear fusion hit a milestone thanks to better reactor walls
A team of scientists have shattered the record for the amount of energy produced during a controlled, sustained fusion reaction.
This new “levitating” Chinese train will be the fastest in the world
It would only take 2.5 hours to travel from Beijing to Shanghai, a journey of more than 1,000 km or 620 miles.
Credit card-sized device focuses terahertz energy to generate high-resolution images
The advance may enable real-time imaging devices that are smaller, cheaper, and more robust than other systems.
High schoolers create $1 filter to remove lead in water
Maryland high schoolers have created a filter that removes lead in water. It costs just $1 and alerts users when it needs to be replaced.
Swiss scientists are making jet fuel from sunlight and air
The fuel's reliance on sunlight makes desert areas prime land for production sites, leaving valuable agricultural land available for food.
A fabric that “hears” your heart’s sounds
An MIT team has designed an “acoustic fabric" to convert sound vibrations into electrical signals.
What is 3G and why is it being shut down? An electrical engineer explains
3G networks are built using completely different equipment and algorithms than its newer replacements.
Win-win: we can make fertilizer by purifying wastewater
Stanford engineers have developed a cost-effective way to convert a toxic byproduct of a wastewater filtration process into useful chemicals.
Diamond-like starfish skeleton unlike any discovered in nature
The skeleton of the knobby starfish has a structure unlike any other found in nature so far, and it could inspire new lightweight ceramics.
“Fly ash” contains rare earth elements needed for electronics
A new method for extracting rare earth elements from fly ash could help end the U.S.’s reliance on China for the valuable metals.