Tech
Did builders of Egypt’s first pyramid use a water-powered elevator?
A controversial study suggests that ancient people might have used one to hoist the stones used to assemble into King Djoser’s pyramid.
By Bruce Bower
HS-ETS1-3
Evaluate a solution to a complex real-world problem based on prioritized criteria and trade-offs that account for a range of constraints, including cost, safety, reliability, and aesthetics, as well as possible social, cultural, and environmental impacts.
More Stories in HS-ETS1-3
- Brain
Herbal medicine could help recovery after concussion
A finalist at Regeneron ISEF found that a plant native to China could supplement a common pain reliever that comes with unwanted side effects.
- Environment
To limit pollution, new recipe makes plastic a treat for microbes
Microplastics made from fossil fuels take centuries to disappear. But the plant- and algae-based plastic can break down in weeks to months.
- Tech
Lego bricks inspired a new way to shape devices for studying liquids
Inspired by Lego building blocks, the approach could enable design of adaptable tools to study how fluids move through very small spaces.
- Artificial Intelligence
Here’s why AI like ChatGPT probably won’t reach humanlike understanding
Unlike people, this type of artificial intelligence isn’t good at learning concepts that it can apply to new situations.
- Chemistry
Turning jeans blue with sunlight might help the environment
When dipped in indican and exposed to sunlight, yarn turns a deep blue. This process is more eco-friendly than the current denim dyeing method.
- Artificial Intelligence
A new tool could guard against deepfake voice scams
Scammers can use AI to create deepfake mimics of people’s voices. AntiFake could make that type of trick much harder to pull off.
- Plants
This urban gardener is mimicking nature to create healthier plants
Urban garden specialist Kwesi Joseph is experimenting with rock dust and plants. He also helps New York City community and school gardens with gardening problems.
- Health & Medicine
Family, friends and community inspired these high school scientists
When looking for research ideas, listen to the people around you. What problems are they facing? What could you do to help?
- Environment
Bottled water hosts many thousands of nano-sized plastic bits
The finding emerges from tests of a new tool that identified smaller-than-ever tiny plastic bits in three brands of bottled water.
