Flash photography used to be pretty wild

I’m a little disappointed we didn’t get a “And through the magic of buying two of them!” as Dan stepped into frame at the start there

Brighter and goopier than I could have possibly imagined.

As a person who worked in a G.E. Lamp Plant for over 20 years making the actual bulbs for the FlashCube, SuperCube, HiPower, MagiCube, & FlipFlash (names such as GE, Osram, Wootan, & several store brands); your assessment of the parts (glass bulb, glass beads, zirconium/magnesium foil, tungsten filament, oxygen, primer, etc...) were spot-on. The most dangerous part of the process was the use of the primer for MagiCube, which the post was dipped into. (A safer & different primer was used to dip the tungsten filament & electrical posts for the other flash bulbs. That primer wasn't as pressure sensitive.) The cup that held the primer was changed every 3-4 hours. As long as the primer wasn't dried out on the inside of the dip cup; which happens as the level in the cup drops, it was safe. BUT dried primer was extremely volatile & accidents have happened. As a side note... back in the heyday of chemical flash; our plant was just one of several that ran over 100 machines; each machine producing 2000-2500 bulbs/hour, 24 hours a day, 6+ days a week, for about 20 years. THAT'S A LOT OF BULBS!!

That face at 30:52 is just priceless. The eyebfow raise the way the face just becomes unveiled from the darkness. Just perfect.

My Uncle, Bernard Kopelman, invented the Magicube. He was the head of research at Sylvania Lighting. I remember him explaining how it worked back around 1970 when I was a teenager. He was a material scientist and before working at Sylvania he was involved in the Manhattan Project developing materials for nuclear reactors. Sylvania (GTE) rewarded him for his work on the Magicube by making him the Vice President of their materials division. He regretted the promotion the rest of his career since he was an inventor at heart and did not enjoy being a manager. My uncle got me a summer job at the Sylvania factory in 1976 when they were developing a machine to make a million electronic flash tubes.

I love how so many youtubers bring Gavin on not because of clickbait, but because of his equipment and experience. Like, barely anyone mentions that they got him on in the title or thumbnails, so you just get surprise Gavin in the middle of a video, and honestly I love that.

In my college years in the early 80's I was in the co-op Engineering program at General Electric. I worked at a plant that made flashcubes. We conducted reliability testing by exposing the flashcubes to high humidity for several weeks. Once the data was collected and the tests were completed, I would take the flash lamps out of each cube and combine them in a large grocery bag which was quite dangerous due to 'sympathetic flash', which means when one lamp flashes, they all flash. I'd connect 2 wires to one lamp, put it in the middle of the bag which held several hundred lamps, place it on the porch at night and wait for my roommate to come home. Touch the 2 wires to a 12 volt battery and you'd get what looked like a small nuclear explosion scaring the hell out of him. Great fun back in the day. 33:52

You just answered an old mystery of mine by sparking an old memory. When I was a young whippersnapper probably under the age of 8 I discovered electricity. I would like to hook a bunch of batteries together in series and connect random things to them(motors, leds, random components that would just get hot). One of the things was an interesting looking light bulb that looked just like the ones you're showing... I connected it to probably about five or six C cells. Then BAM! Mega flash blinded me scared the shit out of me I was like I need to respect the batteries more. At that time I thought I just blew the thing up now I know it worked as design. Remember my grandma watching in the background and giggling.. That evil woman taking joy in my response 😅 ❤ lol. All this time now i know!

Using 2020s era photo tech to see 1960s era photo tech at single digit microsecond time intervals is an actual technology connection. ❤

I do remember people using those Magicubes!!! eh... I'm old I guess...

When I was in EW ‘A’ school in the early 70’s on Treasure Island, there was also an ET school where Navy Electronic Technicians were trained to troubleshoot and maintain a high powered radar. Not far from the ET school was the Navy Exchange. One morning as the high power radar was energized and the students were working on it, the altitude adjustment of the rotating antenna slipped and the antenna angle dropped. As the antenna’s rotation swept by the Navy Exchange, all the fluorescent ceiling lights lit up from the RF energy and all the flash bulbs and magicubes were set off.

I did a second year university project on the materials and processes within the Magicube in 1986 - when they were still a current technology. The oxygen inside is pressurized so as to allow a greater mass of burning zirconium per bulb for a brighter flash. The ignition tube encloses a wire post, centred up the middle. The post is coated with a pyrotechnic compound, so that when the striker wire hits the outside, the tube is crushed onto the post, pressurizing the pyrotechnic coating hammer and anvil style for a more reliable ignition. A fantastic project. Thanks to Prof. Jim Williamson for that opportunity!

You missed a joke with Gav and Dan about "through the magic of buying 2 of them" 🤣

I love Gav going “na na na naa na na na” at 32:42 It makes me feel like he’s a genuine fan of your channel.

OMG SECRET COLLABORATION!? I’ve been happy bamboozled! What a great combo! I bet there’s a bunch of fun things you have in mind for more projects. Always find your thorough explanation of complex processes mesmerizing and enlightening. Thanks so much for another awesome video!!

I love the little turbo whine that the electric flash bulbs had when revving up to fire.

Congratulations on flashing thousands of people and not even getting a content strike.

I'm not ashamed to share that I once picked up an already-opened box of magic cubes and they all slid out and hit the garage floor and ALL went off at once. That was an expensive lesson back in the day.

Ok I was absolutely giddy when I saw Gavin come on screen. This was a team up I wasn’t expecting but glad it happened. I watch both these guys for years now.

I probably had not thought about those since 1981:. In college I disassembled a lot of Magicubes. I did study them with interest, but mostly I got a bunch of packs cheap, and used them as fireworks. I also got ""into"" trouble once with them. And, by into, I literally mean out of. My first-hand experience says, thrown onto pavement from a moving vehicle, they had about a 70% chance of triggering. At night most people can't continue to drive, for at least a couple of minutes, if they were looking right there. So throw three to get the job done and get out. POOF and vanish like a magician.