Sunday, October 6, 2024

How rubbing a surface creates electrical current?

Scientists explain a mystery that nobody could before

For the first time, Northwestern University scientists have explained how rubbing a surface creates electrical current. When an object slides, the front and back parts of that object experience different forces, researchers found. This difference in forces causes different electrical charges to build up on the front and back parts of the object. And the difference in electrical charges creates a current, leading to a light zap.

How the brain transforms sensation into action

Brain-wide decision-making dynamics discovered
Science
walkon device

This robotic exoskeleton enhances walking efficiency for older

The weight of the WalkON system is just 2.93 KG

Zooplankton do not clean water

They play limited role in cleaning contaminated water
Banana Tree and Flower

Southeast Asia was the main diversification center for the Bananas

If we lose wild banana species, we lose banana's sustainability

Photon momentum effectively turns indirect silicon into direct semiconductor

Optical properties of materials can be dramatically enhanced.
Krill

Antarctic Krill locks similar levels of carbon as mangroves

Unveiling the Carbon Storage Potential of Antarctic Krill

New catalyst produces methane using electricity

Methane that doesn’t contribute to global warming.
Ai energy consumption concept

Cognitive changes linked to COVID-19 identified in study

Study highlights specific changes associated with COVID-19 in particular brain function
Oily bubbles in water with drops

Researchers observed the formation of small water bubbles in real time

Scientists witnessed the merging of hydrogen and oxygen atoms.

Novel method for strengthening PVC products

New method may mean less microplastic pollution