COVID-19 can cause long-term health problems, from organ damage to brain fog and maybe even diabetes. Please wear a mask in public and avoid unnecessary outings (M)
I really wish that climate change, vaccines, mask wearing, etc. hadn't become politicized. Our near- and long-term future would be a lot more hopeful (M)
Small particles in a gas or liquid constantly (m)ove around randomly. Work on this "Brownian motion" led to the acceptance of atoms as physical reality
