Hacker News new | past | comments | ask | show | jobs | submit | from login

What Materials Are Magnetic? (sciencenotes.org) 75 points by rwmj 56 days ago | past | 42 comments How to make colored fire at home (2020) (sciencenotes.org) 108 points by squircle 3 months ago | past | 30 comments How Many Atoms Are in the World? (sciencenotes.org) 1 point by psychoslave 3 months ago | past | 1 comment Is Dissolving Salt in Water a Chemical Change or a Physical Change? (sciencenotes.org) 5 points by georgecmu on Dec 1, 2022 | past | 3 comments Why Does Campfire Smoke Follow You? (sciencenotes.org) 5 points by behnamoh on Sept 4, 2022 | past

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact Search: