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!
In this video, I explain (using a bunch of timelapses) why "polar tracker" or "star tracker" camera mounts allow you to take long exposures of the sky without streaking. I also show off my polar tracking rig, which is my most recent piece of homebuilt photography equiment. It uses a door hinge and a curved lead screw to slowly rotate the camera (approximately 0.25 degrees per minute) and eliminate streaking in astrophotogrphy images.
Based on the design by Gary Seronik:
http://garyseronik.com/build-a-hinge-tracker-for-astrophotography/
My parts:
Motor: https://www.amazon.com/gp/product/B00B1KXV3Q/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Gears: https://www.amazon.com/gp/product/B00EPQMFWQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Battery: https://www.amazon.com/gp/product/B009USAJCC/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
lead screw: #8 threaded rod from Home Depot
Hinge: 8"x8" strap hinge from Home Depot
Controller: LM317 configured as voltage source
Any USB battery will work - this is just the one I have for my phone.
If I re-built the design now I would probably print or lasercut the two necessary gears to save money and have more customizability.
Music in this video:
I dunno by grapes, is licensed under a Creative Commons: Attribution License (https://creativecommons.org/licenses/by/4.0/)
Source: http://ccmixter.org/files/grapes/16626
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https://www.youtube.com/watch?v=vg3a0I0duMI
Ever wish you could extract one day of nature from the world and play that frame on a loop? I do! and I've been trying to figure out the best way to take full-day loopable timelapses for a few years now.
As good weather aligned with a pre-planned hiking trip, I had the awesome opportunity to film a timelapse from Santa Cruz Islands, in Channel Islands National Park off the coast of southern California. Other than the ranger station on the island, I don't think there was a permanent human structure within 20 miles of my camera, and Ventura was behind me to the north, so the southern sky was DARK, and the night sky was awesome! The camera ran for a total of 25 hours and 52 minutes, and I spliced the footage back on itself to create a looping day-long timelapse.
I'd been meaning to make a video about shooting 24-hour timelapses because I've done a bunch now and it's a really satisfying technique, so here it is! The full tutorial! I'm going to go through the entire process, front-to-back, that I used to create this timelapse, starting with planning and location selection before I left the mainland, and ending with post-processing and video looping in daVinci Resolve.
In between I'll hit everything about physically recording the timelapse, including my equipment setup, camera settings, weatherproofing, and mounting. Once you've got more than a thousand raw files, It also takes a solid day to edit (largely AFK lightroom rendering time but still...) and I go into my complete day-to-night-and-back timelapse workflow. Hope you enjoy!
I really love the technique so if you film such a timelapse, let me know cause I'll want to watch!
Music Credits:
I Dunno by grapes is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
http://ccmixter.org/files/grapes/16626
New Land by ALBIS is licensed under a Creative Commons license
...
https://www.youtube.com/watch?v=1YorUDE0f9g
This past spring I attended the FRC North Carolina State Championships and got to talk to a bunch of the teams. If you've never heard of FIRST Robotics, you're in for a real treat, because this competition is AWESOME. (If you haven't seen the hub video for all these interviews, check it out first! https://youtu.be/BycqWYE3Ais)
These teams, thousands of them, have only about 2 months to design, build, and test robots to play a brand new game before the competitions begin, and then their work is put to the test! It would be a lot for any professional engineer, but these kids are still in high school! It's pretty incredible.
This video is the complete pit interview with FIRST Team 8727. Enjoy!
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To join or support team 8727:
https://glitchtwopoint0.wixsite.com/glitch2
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If you're interested in finding a team or attending an event, here's the official team search from FIRST:
https://www.firstinspires.org/team-event-search
And if you want to know more about any specific team (like a link to their website) you can probably find it on Blue Alliance:
https://www.thebluealliance.com/
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This is a world map that shows events and teams. I'm not sure how accurate it is because it doesn't look official, but it's a lot easier to search by eye! (and it also doesn't include the other FIRST programs like FLL and FTC (FRC was featured in the video))
https://frcmap.com/
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If you're looking to help a team as a mentor, volunteer, or sponsor:
https://www.firstinspires.org/support
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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=swcsh8gyyIQ
I needed better home internet, so I used a plastic bag and a long string.
Please DON'T try this at home. It works here, but there are a lot of ways you can screw up your house doing this.
Be sure to check out the subreddit: https://www.reddit.com/r/TryTryAgain/
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=1IVhtoFYMVo
Calculating Pi with the Monte Carlo Method is a common introductory programming exercise, but I wanted to get away from computer-generated "random" numbers and used falling raindrops! The apparatus can only complete one calculation - it calculates pi with the shape of its raindrop-detecting sensors.
This Pt. 2 video explains the Monte Carlo Method, the physical construction of the rain sensor, and the program running on the Arduino to count drops.
Music in this video:
I dunno
grapes
Creative Commons: Attribution
http://ccmixter.org/files/grapes/16626
...
https://www.youtube.com/watch?v=akmFVxh1ZPQ
Crystals are materials that have all their atoms assembled in a precise, repeating pattern, and crystalline materials are everywhere. In this video, I've got real crystals, take pictures of actual atoms, and build two demonstrations (one physical and one virtual) that show how crystals actually form.
Extra thanks to the Earth Science microscopy facility, CNSI, and Dr. Mukherjee at UCSB for props, lab access and a better TEM image than my original!
This Video Series:
Crystals (The main video): https://youtu.be/06TscuHNvGQ
The entire CsCl crystal simulation, growing a crystalline "nanoparticle" from 2 to 16384 particles: https://youtu.be/6DlRsPo-dxY
Extra footage of the water-bath 2D demo: https://youtu.be/aO-u6fJDwIs
Epilogue - Why cubic crystals don't always make cubic shapes: coming soon
CODE!
https://github.com/BrianHaidet/AlphaPhoenix/tree/master/CsCl_Molecular_Dynamics_3D
Music Credits:
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/
Move Ya by Max Surla/Media Right Productions is licensed under a Creative Commons license
Operatic 3 by Vibe Mountain is licensed under a Creative Commons license
Other Credits:
Silica diagram - public domain
Video effects - Shutterstock Video Editor Toolkit
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https://www.youtube.com/watch?v=06TscuHNvGQ
My Useless Machine is Hitchiker's Guide themed, Made of lasercut and 3D printed parts, and it contains no microcontroller. Instead, it used three 555 timers to add some variance to the machine's behavior. It a hilarious toy, and wonderfully surprising for people who have never seen it before.
Music in this video:
I dunno
grapes
Creative Commons: Attribution
http://ccmixter.org/files/grapes/16626
...
https://www.youtube.com/watch?v=Zd_DHMEkwUA
Hey everyone! it's been nearly a month since the eclipse and I'm FINALLY ready to publish my timelapse - you'll see why it took so long in this video... I set up two cameras and did an extremely crude high dynamic range stack that is able to resolve some detail on the sunlit moon, and some detail on the shadowed moon, simultaneously. I wish I'd taken 6 pictures at once, and that they were easy to align, so that I could have a full lograithmic-ish HDR picture, but for now, this is my best eclipse timelapse yet. I hope you like it!
Short version:
https://youtube.com/shorts/yXhzfPT29es
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=6R-iMmcQ5aI
The big reveal of my Butter Bot, in my take on the original scene from Rick and Morty.
The butter bot is a hand-machined (with a bit of CNC) aluminum armature that I animated over the course of a day to make this clip. I've covered the build process and the stop motion work in two other videos posted below.
Photoshoot: http://imgur.com/a/ViXLG
Other videos from this project:
Behind The Scenes: https://youtu.be/3khmncHSvXs
Build a Butter Bot: https://youtu.be/3PpORrycZG8
Music and stuff:
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
Hidden Agenda 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=USUAN1200102
Artist: http://incompetech.com/
You're free to use this song and monetize your video, but you must include the following in your video description:
Dark Star 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=USUAN1100534
Artist: http://incompetech.com/
Boat Floating by Puddle of Infinity
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https://www.youtube.com/watch?v=MByi1te9L8U