Allie Christine on Instagram: "That reflective film isn’t normal road dust. It shows up again and again in lab samples. Aluminum, barium, strontium, polymers, graphene based materials. Not from one place. Not from one test. From rain, snow, surface samples, across the globe. If it’s settling on glass, it’s entering airways. Adults breathe it. Children breathe it. Day after day. This isn’t about fear. It’s about acknowledging environmental load has changed, and our biology hasn’t caught up. The q

Design a concept map that shows the relationships among...

The Quantum Brief on Instagram: "Atoms are the basic particles of the chemical elements and the fundamental building blocks of matter. An atom consists of a nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished from each other by the number of protons that are in their atoms. For example, any atom that contains 11 protons is sodium, and any atom that contains 29 protons is copper. Atoms with the same numb