New Non-Toxic Hydrogels Can Remove Graffiti from Street Art Without Destroying It Medicine & Technology Apr 26, 2021 Italian chemists created new non-toxic hydrogels that can erase graffiti from street art without destroying the latter. This makes restoration less difficult and safer.
Gas Stoves Boost Nitrogen Dioxide Exposure Beyond Safety Limits Recommended by WHO, Posing Health Risks to Millions of People in the US, Study Reveals
SPACE Pyramid-Sized Asteroid To Have Close Approach to Earth at a Speed Faster Than a Bullet; How Deadly Is 2024 JZ?
SPACE NASA Video Provides Visualization of a Flight Toward Event Horizon of a Supermassive Black Hole