Electrical Arcs at 1,750,000FPS - The Slow Mo Guys with ElectroBOOM — Transcript

Full transcript

1. 0:00Okay, let me see if I can turn it on
2. 0:03first.
3. 0:08The hell happened there?
4. 0:11Hello, I'm Gav. I'm Dan. We're the
5. 0:13slow-mo guys. We've not done too much
6. 0:15stuff with electricity on this channel.
7. 0:17Most of it's involved sort of, you know,
8. 0:19shocking me or whatever. Yeah. Or a bit
9. 0:20of lightning. Yeah. Because I've mainly
10. 0:22been waiting to have access to two
11. 0:24things at the same time. this camera and
12. 0:28this guy. Hello. Hello. How are you
13. 0:31doing? This is Medi from Electraboom.
14. 0:33Yes. Nice to be here. I like your
15. 0:35videos. Yeah, thank you. I like your
16. 0:37videos. Oh, thanks. Thank you very much.
17. 0:39This stuff looks pretty intense. What
18. 0:41What have you got for us? Well, I have a
19. 0:43I have two things. I have my Tesla coil
20. 0:45here. It's a one Tesla Tesla coil. And
21. 0:47then I have a MarkX generator here that
22. 0:50I made. Uh hopefully that will work. I
23. 0:52want to figure out some stuff that
24. 0:54happens to arcs in slow motion and
25. 0:57hopefully you can see it on camera.
26. 0:58Yeah. So, this camera will let us go up
27. 0:59to We've only ever done a million, but
28. 1:01it will go up to 1.75
29. 1:04million frames a second. And the marks
30. 1:06generator, that's the reason I
31. 1:07originally got in touch because I
32. 1:08remember watching that video.
33. 1:11What's going on? And you see all the
34. 1:13sparks happen at the exact same time.
35. 1:15That's what it looks like. Yeah. Yeah.
36. 1:16And I thought, I wonder if they are
37. 1:17actually happening at the same time or
38. 1:19whether in slow-mo you would see the
39. 1:20separation. Hopefully the camera is fast
40. 1:22enough to capture like if it really
41. 1:25happens at the same time. If it isn't
42. 1:27fast enough, we will have failed you.
43. 1:30Yes,
44. 1:31small things. We'll just wait another 10
45. 1:34years and we'll try again. Okay, we'll
46. 1:35start at what 100,000 frames a second.
47. 1:39That's the starting point. That's the
48. 1:40starting point of this one. Yeah. Uhhuh.
49. 1:42Yes. Ready?
50. 1:44Okay. Stop. That was messing up the
51. 1:48monitor, was it? Yeah. That was That was
52. 1:50like making the monitor like zoom in and
53. 1:52go like
54. 1:54cuz it's a capacitive screen. Oh, weird.
55. 1:57All right, that's enough.
56. 2:01It's all over the place.
57. 2:05Oh. Oh, yeah. There. There we go. Oh,
58. 2:07it's interesting. Look at the little ts.
59. 2:10It's like furry. It's still so fast.
60. 2:12Like look how look how long that takes.
61. 2:14I like the sort of ghost it leaves
62. 2:16behind. Do you think the shape is it
63. 2:19leaving behind a condition of the air
64. 2:20that means the next arc follows the
65. 2:22exact same pattern? That's what I think
66. 2:24it does. Yeah, it should. Like it seems
67. 2:26to be like the next arc follows very
68. 2:28similarly the path of the last one and
69. 2:30it takes a few arcs to actually
70. 2:32significantly change like use up that
71. 2:34path. Well, they will move. The thing is
72. 2:36that the arcs will heat up the air and
73. 2:38the hot air rises. So that's why you see
74. 2:42that's why it's like Yeah, that's why it
75. 2:45goes up. But otherwise like because it's
76. 2:47not very continuous, the air has some
77. 2:50time to cool down. Yeah. Okay. But the I
78. 2:52don't know how long it takes for the
79. 2:53because it creates an ionized channel,
80. 2:56right? Are you Are you going to touch
81. 2:57it? Yeah, you should. I mean, I've
82. 2:59touched it before. It's not bad. It's
83. 3:01like somebody's slapping you on the back
84. 3:03of the hand at one hertz. Don't try the
85. 3:051 kohz. It's like somebody's slapping
86. 3:07you at 1,000 times a second.
87. 3:10That's That's much worse. You've known
88. 3:12Medie for what, two days? Yeah. Uh, are
89. 3:15you at that level of trust with him yet?
90. 3:16I think I think Can you not trust this
91. 3:19face truly? No, I trust you. I trust
92. 3:21you. So, how far do you reckon it will
93. 3:23get me? It will probably go this far.
94. 3:25Okay. Yeah. Let me increase the power a
95. 3:27little bit.
96. 3:31You can touch it now and it will be
97. 3:32brighter when it jumps to you because
98. 3:35Okay. Do you want me to touch it? Yeah,
99. 3:37I think so. I think uh that's going to
100. 3:38really help us see it. Should I go first
101. 3:41so you're not scared or you want to go
102. 3:43first? I'll just do it. Okay. Oh man,
103. 3:46it's so noisy. Just don't punch the
104. 3:48Tesla coil. Just
105. 3:50Yeah. Got it. Okay. Let's have a look at
106. 3:52that. Okay. All right. Let's see.
107. 3:57[Music]
108. 4:04So now what I want you to do is to have
109. 4:06a screwdriver and point it to the arc.
110. 4:09What do you think will happen? Will it
111. 4:11be worse or better? I I can't imagine
112. 4:13it'll be worse, right? Yeah. Because
113. 4:17it's jumping to the metal. Yeah. And you
114. 4:19won't feel it.
115. 4:21Yes. Why would I? I've insulated myself.
116. 4:24Okay. Yeah.
117. 4:29Ah. Oh, you feel it. Ah, it's getting me
118. 4:31like a little bit. Ah, yes.
119. 4:35Yeah. The thing is that when it jumps to
120. 4:36the metal, because it's very high
121. 4:38voltage, it will jump on the air to your
122. 4:41hand anyway. So, it doesn't matter. Oh,
123. 4:44I was shocked. Literally. Now, hold it
124. 4:47like this, but hold the metal tight. So,
125. 4:49it jumps to the metal and goes to your
126. 4:51hand directly, right? Let's see how that
127. 4:53feels. Thoughts? I feel like I don't
128. 4:56know what's going to be worse. And then
129. 4:58I will increase the frequency as well
130. 5:00and see if it will be much worse.
131. 5:03Okay.
132. 5:06You feel it? Not at all. Huh. Nothing.
133. 5:09That's the beauty of Yeah. You can go
134. 5:12further out. So it's Yeah, that's I
135. 5:14don't know if it's getting me though. I
136. 5:15can't even tell if it's like No, I I can
137. 5:17see the arc jumping. I can see him.
138. 5:20It's not very bright. Let me increase
139. 5:22the frequency. So hopefully you can see
140. 5:24something.
141. 5:25Oh. A
142. 5:29okay. All right.
143. 5:34Were you feeling it? It was like
144. 5:36building up. It was like No, no, it's
145. 5:39good. Ow. Ow. Okay. Why am I still
146. 5:43holding it? Oh, there you go. That's
147. 5:45really bright. It's brighter when it
148. 5:47goes directly to the screwdriver, isn't
149. 5:48it? Yeah. Because instead of splitting
150. 5:50in many branches, it just goes in one.
151. 5:55Oh, they meet in the middle. Oh wow.
152. 5:57Okay. See, you see all the fluff between
153. 5:59the arc. It seems like the arc is
154. 6:01finding new ways even. Yeah. Like
155. 6:03there's electricity going in little bits
156. 6:05in here. It looks like you're in space
157. 6:06or something. Like so the voltage
158. 6:07between this bit and that bit is high
159. 6:09enough that arcs are jumping between the
160. 6:11arc. Tiny little leaping from here to
161. 6:14here. It sounds Yeah, it sounds looks
162. 6:16like it. Yeah. Even at 100,000.
163. 6:20Yeah, it's done. We need to go. We need
164. 6:22to bump it up to a million or something.
165. 6:24Yeah. Something just straight to a
166. 6:25million
167. 6:27million. Yeah. What can we do? 1.75
168. 6:30million. Is that the maximum? Is that
169. 6:32the best you can give me? That's the
170. 6:33best we can do. How you got? I like
171. 6:36jumping from 100,000 to 1.75. Should we
172. 6:39Should we do it to 500 first? I kind of
173. 6:41want to see what that looks like. 1
174. 6:42million. 500. What do you reckon? 500.
175. 6:45Yeah, we could waste time at 500 if you
176. 6:46want. Yeah. All right. The Tesla coil
177. 6:50breaks the air first. It doesn't see
178. 6:52you. It doesn't see the screwdriver
179. 6:54first. It breaks through air. It makes
180. 6:56channels through there. And when it
181. 6:58comes close enough to you, then it feels
182. 7:01like it has to jump to that. Yeah. Yeah.
183. 7:04Okay. As you can see, we now have a very
184. 7:06long and skinny resolution. 1280 x128,
185. 7:08but we are at 456,000
186. 7:11frames a second. So, yeah, about four
187. 7:13times slower than we just were. We'll
188. 7:14see what extra information we can see,
189. 7:15but I assume we will have to go faster
190. 7:17still. Should I go higher frequency?
191. 7:19Yeah. Yeah. I can't really see anything
192. 7:20yet. I see.
193. 7:28Okay. So, what was hurting me there? It
194. 7:30was going so high. I was holding it like
195. 7:32this, right? And I moved it further away
196. 7:34and it stopped going to the screwdriver.
197. 7:36It started going to your hand was too
198. 7:38close, huh? Yeah, my hand was too close.
199. 7:44Is it Oh, it's not playing, is it? It's
200. 7:46not playing. So, I can see why I thought
201. 7:49it was so slow. I'm not seeing anything.
202. 7:51What it was? Okay. So, now we might be
203. 7:54at the point where we can see the
204. 7:55frequency maybe. Although, you know what
205. 7:57they say, if you want to sample the
206. 7:59frequency properly, you have to be at
207. 8:00least double the frequency of the Ah,
208. 8:03yes. Cuz otherwise you would have it
209. 8:04turning on and off within one frame. Oh,
210. 8:07yeah. Okay. Here we go.
211. 8:12Is it happening multiple times? Oh, it
212. 8:15could be. It could be the All right.
213. 8:18There you go. So we it might be the fact
214. 8:21that it's not exactly double the
215. 8:23resonance frequency if we go higher.
216. 8:25Yeah, it's definitely blinking on and
217. 8:26off after it happens and then it comes
218. 8:29on again then back up then down then
219. 8:31back up then down. It's obviously like
220. 8:33building up charge and then finding a
221. 8:35spot to like nail and just releasing all
222. 8:37of its energy. It's quite a distance as
223. 8:38well. It's like four four or five
224. 8:41inches. Yeah. The if you count the
225. 8:43length of the arc itself, it's probably
226. 8:45like 6 7 in. It's going in curls. Why
227. 8:48don't we make the leap? 1.75 million.
228. 8:51Just straight up to 1.75. Why not?
229. 8:53Skipping a mill. Skip a mill. We've done
230. 8:54a mill before. We've never done 1.75
231. 8:57million on a Phantom before. That's
232. 8:58true. This will be the fastest we've
233. 9:00ever filmed on a Phantom. That would be
234. 9:02something. Yes. And you're here for it.
235. 9:06This camera is now recording so fast
236. 9:08it's turning every 1 second of real time
237. 9:11into about 19 hours of footage. And
238. 9:14we're recording for 2.2 seconds. So,
239. 9:17almost a couple of days. Who's going to
240. 9:19Who's going to sit here and do that and
241. 9:20find the footage? Yeah. Hello. Good
242. 9:22luck. Are you ready? I am now taking
243. 9:26very casually 1.75 million frames every
244. 9:29single second that we're wasting. There
245. 9:30you go. You're immediately one of the
246. 9:32most photographed people.
247. 9:34There is now enough pictures of you to
248. 9:36last forever. They're gone now, though.
249. 9:39They're gone. I didn't keep them.
250. 9:41[Music]
251. 9:43A
252. 9:51okay.
253. 9:53I didn't see anything.
254. 9:55We recorded 2,630
255. 10:00minutes. Oh my goodness. Does that sound
256. 10:02right? Wow. Okay. I'm excited. Yeah, me
257. 10:05too. It's the fastest rate you ever done
258. 10:07or you ever done? Yeah. I've never done
259. 10:09anything.
260. 10:12Oh wow.
261. 10:14So that you can see it crinking on and
262. 10:16off before it even makes it now. You can
263. 10:18see the resonance completely. So this is
264. 10:21like off, on, off, on, off as it slowly
265. 10:25works it way over. So you can definitely
266. 10:27see it turning on and off throughout the
267. 10:29arc. Ah, that's great. You can probably
268. 10:32calculate the resonance frequency using
269. 10:34this. Yeah, that one. Even before they
270. 10:36make it, we still see a few jumps from
271. 10:38the tip as well. Well, we've confirmed
272. 10:40it too. The air can blink at 250 kHz. I
273. 10:45wasn't expecting that. Can you tell me
274. 10:47what is the frame difference between
275. 10:49this peak of the voltage to the next
276. 10:51one? That way, we can calculate the
277. 10:53frequency of resonance. Actually, we can
278. 10:54just see it's 9328 9332. It's four
279. 10:58frames. Four frames. Four frames. At
280. 11:00what speed? 1.75 75 million. Yeah, it
281. 11:03shows 430 kHz. Wow. I was expecting
282. 11:07closer to 250 kHz but well maybe so it's
283. 11:10broken or maybe we are still missing
284. 11:12something.
285. 11:14Yeah, it could be. Does it get brighter
286. 11:16again? Oh no, it is right. Sorry, I have
287. 11:19to divide it by two as well. So it's
288. 11:22around 220 kHz cuz it's on and off.
289. 11:26Yeah, like it's AC so it's bright on the
290. 11:29lower negative peak and the positive
291. 11:31peak. So
292. 11:33yeah, that's right.
293. 11:36So the camera and the testicle aren't
294. 11:38broken. Good. Everything is good. We're
295. 11:40just looking at like pure unedited
296. 11:44reality. There's no there's no lies
297. 11:46here. It is still, you know, an
298. 11:50estimation because still we are not
299. 11:51sampling fast enough to very accurately.
300. 11:54Yeah, we're still if we're down to
301. 11:56counting four frames, we kind of still
302. 11:58need to be going fast. We would be good
303. 11:59at like 10 million probably. I'm happy
304. 12:02we captured the resonance frequency. I
305. 12:04didn't expect that to be possible, but
306. 12:06I'll keep the full file, the whole
307. 12:08thing. Save how many frames? Save
308. 12:104,142,484
309. 12:13frames. And I would say I'll upload that
310. 12:15unedited to the second channel. But um I
311. 12:18don't think you can upload a video
312. 12:19longer than 12 hours. Make it a
313. 12:20three-part video.
314. 12:22Yes. So many frames. It's almost
315. 12:24onetenth of the pictures people take of
316. 12:26themselves on Instagram. One10enth of an
317. 12:29Instagram influencer. Yeah. Okay. So
318. 12:32Medie is now hooking up his Mark's
319. 12:34generator. This is the thing I saw and I
320. 12:36just had to know whether all the sparks
321. 12:38were happening at the same time or
322. 12:39whether there was a imperceivable delay.
323. 12:41Do you think this will work or do you
324. 12:42think it will blow up somehow?
325. 12:45Let me turn. No,
326. 12:49this charges. Oops. Oh no. Oh no. Did I
327. 12:53break that? Oh no. Damn it. I blew my
328. 12:55powers.
329. 12:57Jeez.
330. 13:01Please. Oh, that's that's that's not
331. 13:03good. Now I broke that. Now I'll go
332. 13:05solder.
333. 13:14Okay, it's holding on. She looks good.
334. 13:16Ready? Oh, sitting again. That's not
335. 13:19good. Too close. Too powerful. Wow. Is
336. 13:23it going through the tape or not? Wow.
337. 13:25Fully melted the tape.
338. 13:29Oh, it's working. All right, it's
339. 13:31working. I'm trying it.
340. 13:34Hey, high five. Thank god you did it.
341. 13:37Well done.
342. 13:40[Music]
343. 13:41Wow. Blood. That is so bright. So
344. 13:44bright. You like blew out everything
345. 13:46over here. Wow. What? What's going on
346. 13:50there? So it's off. Okay. And on. Wow.
347. 13:55Oh man. Oh, so we need to go faster, I
348. 13:58guess. We need to go way faster. Look at
349. 14:00how bright that is. Is that all? What is
350. 14:02this? Is this the electric fluff again?
351. 14:03Look, I don't know if it's the flare
352. 14:06from the lens or it might be the fluff.
353. 14:07Actually, it could be fluff. Hello, it's
354. 14:09Gav from the edit. This is something
355. 14:11that we all missed when we were watching
356. 14:13on the day just cuz the screen is quite
357. 14:14small and you can't notice everything.
358. 14:16Medi discovered this watching the
359. 14:18footage back when he was making his
360. 14:20video. There's actually in the final gap
361. 14:23a tiny little streamer just slithering
362. 14:26towards the other bead and as soon as it
363. 14:28hits it triggers the whole thing. I'm
364. 14:29sure Medie will get into that a lot more
365. 14:31on his analysis video.
366. 14:34Wow. Nice. Okay. Should we go straight
367. 14:36to 1 million75?
368. 14:39You so keen on like should we set this
369. 14:42up like 1.75 or nothing? Yeah. I mean it
370. 14:45was so fast it it was fast and bright. I
371. 14:48mean I'm not worried about exposure
372. 14:49anymore. Yeah. Okay. We are at 875,000
373. 14:53which is pretty much as high as we can
374. 14:55go in color without it being so skinny
375. 14:58we can't see anything. I can hear it.
376. 15:02There you go. Okay. Oh, I love your your
377. 15:07laugh of glee. Do you think we'll have
378. 15:09the
379. 15:11sequence of arcs or it's again one shot?
380. 15:14Oh, there we go. Okay. Wow. Okay. Uh, so
381. 15:19here we go. Playing back. Oh, it's all
382. 15:22the same. It's all instantly the same.
383. 15:24Bang. It's exactly the same time. Oh.
384. 15:26Oh. Oh, wait. It's when it's turning on,
385. 15:29right? Maybe that's just turning off or
386. 15:30on. Which Which one was it? This is on.
387. 15:33Oh, so the last one went first. So,
388. 15:35we've got one in the last one for one
389. 15:39frame and then all the other ones are
390. 15:40on. Wow. They're at different stages
391. 15:43though. Like they're less bright here.
392. 15:44You can see. And then they're brighter
393. 15:46and brighter. Maybe is it less bright
394. 15:47here because they're closer? Yeah. Well,
395. 15:49maybe it's because it's earlier. It
396. 15:50started earlier. So, it's like it gets
397. 15:52brighter and brighter as we go. All
398. 15:53these capacitors would be at a different
399. 15:55voltage level. So, the first one will be
400. 15:57a higher voltage and goes down to the
401. 15:59last one. Why would that is the
402. 16:02question? Why would the last one goes
403. 16:03first? And this is a global shutter. I
404. 16:06always thought it would start from the
405. 16:08other end going forward, but no. Going
406. 16:10to bend the sensor up to 1.75 million
407. 16:13again.
408. 16:14Oh, there you go. Go, go, go, go, go.
409. 16:17Nice. Got it. So, our biggest struggle
410. 16:18currently is uh finding our shot in the
411. 16:22clip. Yeah, we want to react to
412. 16:23something, but there's nothing to react
413. 16:24to. Yes, we know we've got it.
414. 16:27It's in there, but we have to sift
415. 16:29through 4.4 million frames. Yeah, you
416. 16:31were the one that wanted to go up to
417. 16:321.75 million frames a second. Now, look
418. 16:34where we're at. Look at this.
419. 16:36Oh, there. Did you see it? Are you
420. 16:38serious? No. Oh, don't do that to me.
421. 16:46Oh, there we go.
422. 16:48[Laughter]
423. 16:51I mean, oh, sugar. 1.75 million frames a
424. 16:55second. Everyone, calm down, everyone.
425. 16:58Hold on. Now we will learn.
426. 17:02Oh, wow. It's so bright. Look at all the
427. 17:04fluff as well. Did it all happen at the
428. 17:06same time? Yeah, it looks like it. Damn
429. 17:08it. Why are you disappointed in that?
430. 17:11The answer is it just happens at the
431. 17:12same time. That's within one. What is
432. 17:15the time difference there? If if it was
433. 17:172 mega frames per second, then it would
434. 17:19be like half a microcond. So within 500
435. 17:21nconds, they've lit up at least. So
436. 17:25there's no lead in that time either. It
437. 17:26was just straight up boom. Look how
438. 17:27bright that is. We honestly need to be
439. 17:29filming at like 50 million frames a
440. 17:31second. Yeah. Seems like it's running at
441. 17:34a speed of light almost. That has
442. 17:36answered my question on my first thought
443. 17:39when I saw your video was like, what
444. 17:41would a phantom show? Yeah. And it shows
445. 17:43this thing a normal camera which
446. 17:48just a little bit slower. Yeah. Now, now
447. 17:51if you go forward in time, do you see
448. 17:53any blinking oscillation or it just goes
449. 17:57down like just calms down? Yeah. Just
450. 17:59burns the air away. Yeah. It just turns
451. 18:01off for another 4 hours and then
452. 18:06Well, that's cool. That was cool. Yeah.
453. 18:08We were able to see. We learned We
454. 18:10learned something. We learned that
455. 18:12electricity is really fast. Yeah, it
456. 18:13could be. Could be faster than we can
457. 18:16manage. Here's another couple of
458. 18:17attempts that we didn't watch on the
459. 18:19day. Both of them display activity in
460. 18:22the final gap. Well, that was some
461. 18:24incredibly fast footage with some
462. 18:27incredibly fast action. Yeah. Making it
463. 18:29seem like relatively normal speed
464. 18:31footage. That's a good point. Well, I'm
465. 18:33just happy my circuit was able to last
466. 18:35as long as it did. It was stressful. It
467. 18:38only blew up what, twice? No, I think it
468. 18:40was three times. Three times. Yeah.
469. 18:41Power supply one circuit and power
470. 18:43supply. This bit that bit. Yeah. And
471. 18:45that kept smoking. What?
472. 18:48It was just really interesting to see
473. 18:50the path that electricity chooses
474. 18:52depending on the previous spark and like
475. 18:55the temperature around it and the
476. 18:57ionization of the air. It's incredible.
477. 18:59Yeah. Well, actually what I learned was
478. 19:01that I I didn't know air can blink that
479. 19:03fast at 250 or 300 kHz. That's
480. 19:06surprising. Yeah, we actually saw the
481. 19:09frequency. Yeah, I I love that you guys
482. 19:11learned all that. And I learned that hot
483. 19:12air rises
484. 19:15and that's why electricity goes. I
485. 19:17thought that would be kind of obvious if
486. 19:20that's what I was like, why does it
487. 19:22always go up like that? Yeah. I feel
488. 19:23like you knew it and then you discover
489. 19:24this. It's like, oh, these are the same.
490. 19:26Yeah, I applied it. Yeah. Yeah. There
491. 19:27you go. Well, I had fun. Thank you very
492. 19:29much for watching that video. Make sure
493. 19:31you subscribe to Medie's channel. It's
494. 19:32one of my favorite channels. And
495. 19:34subscribe to these guys as well. And we
496. 19:35have Yeah, we have a channel. It's
497. 19:37you're watching it. So, thanks for
498. 19:39watching it and we'll see you next time.
499. 19:40Goodbye. Bye. If you're new to Electro,
500. 19:43make sure you subscribe. He's already
501. 19:44made a video and will be making a second
502. 19:46video where he in more detail explains
503. 19:49what's going on based on the footage
504. 19:51that he now has. And I'm very excited to
505. 19:53watch it. I'm sure it will come out
506. 19:54soon. So, make sure you subscribe to him
507. 19:56as