The Snowflake Myth
Veritasium1 HN recommender · recommended in 1 month, 2022–2023
explainer · general · evergreen · 2022–2023 on HN
Veritasium visits snowflake expert Dr Ken Libbrecht, who grows designer snowflakes in the lab. The video explains how snowflakes form and why they take so many shapes.
Recommended as a fantastic, scientist-led explanation of snowflake formation.
Up next
15 mo on HNAT&T Archives: Similiarities of Wave Behavior (Bonus Edition)
AT&T Tech Channel
12 HN recommender · 2014–2026
15 mo on HNHeat Pumps: the Future of Home Heating
Technology Connections
17 HN recommender · 2021–2026
8 mo on HNRichard Feynman Fire
nebulajr
8 HN recommender · 2010–2023
8 mo on HNBuilding a realistic artificial sun (for dark winter days)
DIY Perks
9 HN recommender · 2020–2025
8 mo on HNBrown; color is weird
Technology Connections
8 HN recommender · 2020–2026
6 mo on HNThe Biggest Misconception About Electricity
Veritasium
7 HN recommender · 2021–2026
5 mo on HNWatch electricity hit a fork in the road at half a billion frames per second
AlphaPhoenix
5 HN recommender · 2024–2026
6 mo on HNOld-fashioned rice cookers are extremely clever
Technology Connections
6 HN recommender · 2020–2025
5 mo on HNFourier Optics used for Optical Pattern Recognition
Huygens Optics
5 HN recommender · 2021–2025
4 mo on HNHow Trees Bend the Laws of Physics
Veritasium
4 HN recommender · 2013–2026
5 mo on HNBut why would light "slow down"? | Visualizing Feynman's lecture on the refractive index
3Blue1Brown
5 HN recommender · 2023–2026
5 mo on HNTraffic Waves
wbeaty
5 HN recommender · 2013–2022
3 comments from Hacker News
Here's a fantastic Veritasium video about snowflakes with a scientist that basically figured out all of the ways they can form: ▶ this video
In lab situations, it is possible to grow "identical twins". Some various coverage on Professor Libbrecht and his snow flakes... KEQD: link Quartz: link Veritasium: ▶ this video And if you want to dig deep: link
You suggest that I do not see the forest for the trees. I say that words have meanings, and that extraordinary claims need evidence. A material in which atoms (or molecules) are aligned is called a crystal. The process by which atoms align is called crystallisation. If we expand the concept of alignment we may consider atoms that are part of a polymer molecule to be "aligned". A material in which larger structures are aligned is a metamaterial. Beyond this level, referring to the alignment of atoms does not make sense. Sound can affect the process of crystallisation of a liquid because the formation of crystals is influenced by pressure. See ▶ this video But claiming that there is any crystallisation happening in a finished wooden stringed instrument requires evidence because it is implausible. If we refer to polymers, wood and glue and lacquer all contain polymers. But claiming that those polymers are in any way affected by sound also requires evidence. Also claiming that wooden instruments contain metamaterials and that the structure of those metamaterials can be altered by sound, similarly requires evidence. What I am saying is that you not only claimed the existence of an unlikely phenomenon, but you also confidently asserted that it can be explained by physics that contradicts current knowledge. I am claiming that this is the Dunning-Kruger effect in action. I have read the page you link and find it unconvincing. In my comment to Perenti ( link ) I have proposed an experime