A DIY Recipe for Giant Hexagonal Ice Crystals Episode 3-and-a-half (the final episode) of my series on water ice! In this video I discuss the vapor grown ice crystals with a bit more science, and a lot more timelapses! It's amazing what you can learn aout a physical process when you can photograph it continuously for weeks… Other videos in this series: The Sound of Freezing, Explained! https://youtu.be/Wd_c0A8u3lw The Sound of Freezing (Bonus Footage) https://youtu.be/hpzutKRSukw What is polycrystalline water? https://youtu.be/g7ONBuVtz-w A DIY Recipe for Giant Hexagonal Ice Crystals https://youtu.be/L0SYxpVab6M Big Hexagons of Ice 2: Thermoelectric Boogaloo https://youtu.be/VA710QYxEu0 Growing Giant Snowflakes (Timelapse Supercut) [TBD] Check out the other social media for updates and ramblings: https://twitter.com/Alpha__Phoenix https://www.reddit.com/r/TryItAgain/ Interesting articles for the extra-curious: J.M. Adams, W. Lewis, The Production of Large Single Crystals of Ice, Rev. Sci. Instrum. 5 (1934) 400–402. doi:10.1063/1.1751759. T. Shichiri, Faceted ice crystals grown in water without air, J. Cryst. Growth. 187 (1998) 133–137. doi:10.1016/S0022-0248(97)00839-7. P. Bisson, H. Groenzin, I.L. Barnett, M.J. Shultz, High yield, single crystal ice via the Bridgman method, Rev. Sci. Instrum. 87 (2016) 034103. doi:10.1063/1.4944481. A. Cahoon, M. Maruyama, J.S. Wettlaufer, Growth-Melt Asymmetry in Crystals and Twelve-Sided Snowflakes, Phys. Rev. Lett. 96 (2006) 255502. doi:10.1103/PhysRevLett.96.255502. T. Gonda, The Growth of Small Ice Crystals in Gases of High and Low Pressures, C, J. Meteorol. Soc. Japan. Ser. II. 55 (1977) 142–146. doi:10.2151/jmsj1965.55.1_142. Y. Furukawa, S. Kohata, Temperature dependence of the growth form of negative crystal in an ice single crystal and evaporation kinetics for its surfaces, J. Cryst. Growth. 129 (1993) 571–581. doi:10.1016/0022-0248(93)90493-G. N.N. Khusnatdinov, V.F. Petrenko, Fast-growth technique for ice single crystals, J. Cryst. Growth. 163 (1996) 420–425. doi:10.1016/0022-0248(95)00980-9. D. v. d. S. Roos, Rapid Production of Single Crystals of Ice, J. Glaciol. 14 (1975) 325–328. doi:10.3189/s0022143000021808. #Materials #Physics #Crystals Music and images in this video: I Dunno by grapes is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/3.0/) http://ccmixter.org/files/grapes/16626 Arcadia - Wonders by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100326 Artist: http://incompetech.com/ https://en.wikipedia.org/wiki/Snowflake#/media/File:Snowflake_macro_photography_1.jpg ... https://www.youtube.com/watch?v=VA710QYxEu0

When I'm not making YouTube videos, I'm growing crystals in a Molecular Beam Epitaxy vacuum chamber held about 12 orders of magnitude below atmospheric pressure. This is the first in what I'm hoping will be a series of videos featuring the MBE chamber, and this time I'm talking about leaks: how to find the tiniest leaks in the most sensitive systems, and how an MBE can be considered basically a perfect pressure vessel with no air leaking in or out at any time. Let me know in the comments if you have any questions about the MBE I could address in future videos! Check out the other social media for updates and ramblings: https://www.facebook.com/AlphaPhoenixChannel/ https://twitter.com/Alpha__Phoenix #Vacuum #Materials #Engineering The MBE Lab is part of the Materials Department at UCSB. Filmed with permission. Extra graphics in this video: ConFlat flange diagrams from Kurt J. Lesker and Vacs SEV Music in this video: I Dunno by grapes is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/3.0/) http://ccmixter.org/files/grapes/16626 ... https://www.youtube.com/watch?v=VD69crOFx10

How I built my timelapse camera slide. I focus on important design elements of camera slides and show examples from this setup. The track is made from lasercut plywood and the camera slides on a dolly using 8mm roller skate bearings. Music in this video: I dunno grapes Creative Commons: Attribution http://ccmixter.org/files/grapes/16626 Mission Bucharest Pharaos Creative Commons Attribution, Non-Commercial http://freemusicarchive.org/music/Pharaos/The_New_Pharaos/01_Mission_Bucharest_vbrmp3_1121 ... https://www.youtube.com/watch?v=47X8VFlnJas

This is the detail video for my Electroshock Catan project. The Catan board that shocks people taking slow turns! I give detail about the board construction, the control circuit, and the math behind the timing/calculation of "excessively long turns". I do not give information about the high voltage supply because you should NOT try this at home! Music in this video: I dunno grapes Creative Commons: Attribution http://ccmixter.org/files/grapes/16626 ... https://www.youtube.com/watch?v=it1gvTxYi0s