Engineering Design
- Earth
Build your own seismograph with this science activity
By recording earthquakes, seismographs help scientists better understand and hopefully predict quakes.
- Tech
New light-activated coating can kill stubborn germs
Based on graphene, this new material can knock out hard-to-kill germs on contact — even in your mouth.
- Health & Medicine
New study links early smartphone ownership to health risks
The earlier kids get smartphones, the more likely they’ll get too little sleep, gain weight — and possibly develop depression, a new study suggests.
- Artificial Intelligence
Bots have their own social network, and it’s worrying experts
Security experts warn that Moltbook, which launched last month, is a "nightmare" where people may get their bots to steal others’ identities and money.
- Health & Medicine
You need to eat protein — but the right mix really matters
All proteins are not equal, research is showing. So while most Americans get plenty of protein, they might not be eating the most nutritious blend.
- Chemistry
Explainer: What is chirality?
Chiral molecules are mirror images of each other. They might not seem all that different — but can have drastically different effects in medicine, materials and more.
- Physics
Precise tee placement can improve golf driving, teen finds
A homemade golf-ball-driving machine helped this middle-school engineer improve his own game.
- Animals
Lions have a second roar that scientists have only just discovered
This insight from machine-learning analyses of recordings of calls in the wild might help detect where lions are declining.
- Climate
As winters warm, athletes must cope with harder snow and tricky ice
Ice arenas and artificial snow now dominate the winter Olympics. Athletes there — and everywhere — may need to adjust how they train and perform.
- Tech
A mosquito’s mouth can ‘print’ lines thinner than a human hair
Scientists turned a mosquito’s straw-like mouthpart into a 3-D printing nozzle that creates ultra-thin lines.
- Brain
Scientists Say: Hallucination
Humans are not the only ones who can hallucinate. When a chatbot confidently generates a plausible but incorrect response, this error is called a hallucination.
- Artificial Intelligence
Chatbots may make learning feel easy — but it’s shallow
People who use search engines gain deeper knowledge and care more about what they learn than those who rely on AI chatbots, a new study finds.
