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EEVblog 1741 - Mailbag! — Transcript

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  1. 0:00Hi, welcome to everyone's favorite
  2. 0:01segment, mailbag. I'll have to use the
  3. 0:05knife left-handed today. I'm a little
  4. 0:07bit ambidextrous because well, if you
  5. 0:10seen my EV blog two video, um
  6. 0:12yeah, this is the aftermath. Uh no, it
  7. 0:15wasn't to do with the knife. So, you'll
  8. 0:17have to check that out. Anyway,
  9. 0:19everyone's favorite segment, mailbag.
  10. 0:21Thank you very much to Matthew Burger
  11. 0:24from Switzerland. Hi to all my viewers
  12. 0:26in Switzerland. And if you got
  13. 0:28something, you want to send it in. EV
  14. 0:30blog mailbag. Got to put mailbag on it.
  15. 0:32PO box 7949. I don't know what post [ __ ]
  16. 0:36is. Um I
  17. 0:38don't know, but don't put that. Anyway,
  18. 0:40put PO box 7949
  19. 0:43Northwest, New South Wales, 2153,
  20. 0:46Australia. So, not quite in that order,
  21. 0:48but yeah, it gets here. You can be an
  22. 0:50individual or company and you can send
  23. 0:52something in and we open it up. So,
  24. 0:54let's have a squeeze. Haven't seen this
  25. 0:56before. This is new. Dear customer, this
  26. 0:58article was received in Australia in
  27. 0:59this condition and has been re-wrapped
  28. 1:01by Australia Post. Thank you very much
  29. 1:03at the Sydney Gateway facility. So,
  30. 1:07yeah, it's it's Kamagasa somehow. So,
  31. 1:10oh, got to get in here with the left
  32. 1:12hand. Hang on.
  33. 1:14This could I could Kamagasa. All right,
  34. 1:17we have a book and we have a note. Ooh,
  35. 1:21what is this? What is this? Volume two.
  36. 1:24Did we get volume one? I don't remember.
  37. 1:27Been so much sending to mailbag over the
  38. 1:28years. Volume two, professional
  39. 1:30electronic design best practices. That
  40. 1:34sounds awesome. Matthew F. Burger is the
  41. 1:38author and there you go.
  42. 1:40Additional best practices in circuit
  43. 1:42design, 100 plus new diagrams, 25 plus
  44. 1:44practical ready to use reference tables.
  45. 1:46We love reference tables. Just an
  46. 1:49absolute random page here. What do we
  47. 1:51got? Width of a 50 ohm conductor track
  48. 1:54on outer layer as a function of the
  49. 1:55height above the reference player and
  50. 1:57the reference service in the layer
  51. 1:59below. Of course, that'll depend on your
  52. 2:01PCB material of course.
  53. 2:03Section of the conductors on top layer
  54. 2:05between R9 microprocessor and DDR5. The
  55. 2:09wider space traces of data traces, two
  56. 2:11closely spaced traces, data strobes with
  57. 2:14a length of 20 mm. I'm sure they talk
  58. 2:17about length matching there. Routing
  59. 2:20differential signals. Yes. There's lots
  60. 2:22of photos and things in here. There you
  61. 2:24go. Function of dip switch settings and
  62. 2:27also like shunt jumpers. For example, by
  63. 2:31the looks of it, PCB stack-ups. Look at
  64. 2:34this.
  65. 2:35Use grids but do not align everything.
  66. 2:38Yes, grids are important to PCB design.
  67. 2:41I I won't show you every Oh, noise. What
  68. 2:44is that? How how to measure noise on
  69. 2:46power rails and ADCs. There you go. Lab
  70. 2:49bench test. I don't I [laughter] should
  71. 2:51have started from the beginning.
  72. 2:53What are we standards compliance? Oh,
  73. 2:55that's IP ratings and stuff. Wow, this
  74. 2:59is cool. Estimating and reducing costs.
  75. 3:02Oh, this looks pretty cool. Example of
  76. 3:05conformal coating. Look at that. That's
  77. 3:07thick as. Rise time estimates and stuff
  78. 3:10like this. Let's jump straight to the
  79. 3:12beginning because this is volume two.
  80. 3:14We've obviously missed out on volume one
  81. 3:16or have we? I don't think it was
  82. 3:17probably in a previous mailbag. Was it?
  83. 3:19A supercap is not a supercap. Subtleties
  84. 3:22in freewheeling diode selection.
  85. 3:25Software debouncing. Do not use headers
  86. 3:27in products.
  87. 3:29>> [laughter]
  88. 3:30>> I'll leave it to you to actually read
  89. 3:32that, the reason why do not use
  90. 3:34headers in products. More about memory
  91. 3:36selection, ADCs, DACs, sensor selection.
  92. 3:39Yeah, conformal coating. DC
  93. 3:42Jump straight from just component
  94. 3:44selection to like DC supply design. In
  95. 3:48this case, it's kind of like you know,
  96. 3:50the art of electronics like X chapters.
  97. 3:52They just sort of like you know, throw
  98. 3:54in these random you know, practical
  99. 3:56tidbits and stuff like that.
  100. 3:58Estimating reducing costs. So, yeah,
  101. 4:01there you go. It's like there's no set
  102. 4:03structure here. It's just jumping around
  103. 4:06with random little factoids. And we've
  104. 4:08got like standard various standards
  105. 4:10compliances. That's That seems fairly
  106. 4:12comprehensive. Look at that. Lots of
  107. 4:14them. Dealing with patents. Oh, yeah,
  108. 4:16there you go. Limits of circuit
  109. 4:18simulation. Yes, cuz it's not about
  110. 4:20simulating a circuit, it's about knowing
  111. 4:22the limits and the pitfalls. Lab bench
  112. 4:24test.
  113. 4:25Do not trust the e-test. There you go.
  114. 4:28And then just start lab bench testing.
  115. 4:30So, there you go. A bunch of practical
  116. 4:33hints and tips about various aspects of
  117. 4:37design and also manufacture as well.
  118. 4:40Neat. Wow, I'll link it in down below.
  119. 4:43Thank you very much, Matthew. I Yes, we
  120. 4:45did have it in the mailbag. Dear Dave,
  121. 4:48your help contributed significantly to
  122. 4:50the success of my first book. Over a
  123. 4:51thousand a thousand? Is that Is that a
  124. 4:53one?
  125. 4:54Copy sold. That is awesome. For those
  126. 4:57who don't know, that is quite good
  127. 4:58volume for like a niche technical book
  128. 5:01like these.
  129. 5:03Thank you very much. Now, I've written a
  130. 5:04second volume. I'd like to great if you
  131. 5:06could mention it too. It's available on
  132. 5:08Amazon for only 23 bucks. There you go.
  133. 5:11That's a bargain. Thank you very much,
  134. 5:14Matthew. 23 bucks cuz this will be print
  135. 5:17on demand, I'm sure. So,
  136. 5:19do they even mention it's Amazon print
  137. 5:21on demand? There's a publisher for it.
  138. 5:23So, yeah, I'm not sure, but anyone can
  139. 5:26publish a book now with Amazon print on
  140. 5:28demand. They you know, you don't need a
  141. 5:31traditional publisher. Oh, when I was a
  142. 5:33boy,
  143. 5:34now you can just you know, put your book
  144. 5:36on Amazon and they will print. If you
  145. 5:37order a copy, they will print up.
  146. 5:39They've got these magical new printing
  147. 5:41machines that'll just print you off and
  148. 5:43bind and glue and everything one
  149. 5:45particular copy just for you. And like
  150. 5:48it's it's fantastic. So, I'm not sure if
  151. 5:50that's the case here, but anyway, yeah,
  152. 5:53that's great. That looks really groovy.
  153. 5:54I love little practical random practical
  154. 5:59design and manufacture tips. Great
  155. 6:01stuff. Next up, hi to all my viewers in
  156. 6:04Mamaroneck,
  157. 6:06New York, I think.
  158. 6:08Thank you, Colton Wheeler. And we've got
  159. 6:11a direction indicator. What the heck is
  160. 6:14that?
  161. 6:16Ah. Ah. Hang on. This thing hurts too
  162. 6:20much. Got to go get a fresh band-aid on
  163. 6:22it. All right, what is a direction
  164. 6:25indicator Oh. Oh, that looks groovy.
  165. 6:29Ah,
  166. 6:30battery removed for shipping. Yeah, it
  167. 6:33stopped working. What's broke? Oh, okay.
  168. 6:35So, we have something broken. Oh. Oh.
  169. 6:39That's in Look at that. Um sort of like
  170. 6:43bodged-in looking solar cell,
  171. 6:45Nautalytics.
  172. 6:47So, it's some sort of nautical custom
  173. 6:50not high volume. Some sort of like
  174. 6:52custom nautical
  175. 6:54related product. A simple compass. Okay,
  176. 6:57there you go. Made in 'Merica.
  177. 7:00USA. Nautalytics simple compass. So,
  178. 7:03what is it? Some sort of like fluxgate
  179. 7:06compass or something?
  180. 7:08Uh Oh. Oh. Oh, I see three big Okay,
  181. 7:12it's just got three big LCD digits on
  182. 7:16there. Um seven segment display and it
  183. 7:19just displays your
  184. 7:21rotation. Um this has got to be ancient.
  185. 7:24We were rolling our own fluxgate compass
  186. 7:26at GEC Marconi back in the
  187. 7:30mid-90s, something like that.
  188. 7:33Um and
  189. 7:34yeah, that'd be my guess. But yeah,
  190. 7:37obviously, compass is trivial these
  191. 7:39days, but back then. So, I'd say yeah,
  192. 7:41late '80s, maybe early '90s
  193. 7:45vintage perhaps. Let's crack it open.
  194. 7:48Woah, [snorts]
  195. 7:49it's hard to I got to do this
  196. 7:50left-handed too. Yeah, it looks
  197. 7:52completely sealed. So, it wouldn't
  198. 7:55surprise me and because it's nautical.
  199. 7:57Wait.
  200. 7:58Oh, yeah. Oh. Wait.
  201. 8:00There we go. Oh, no. That looks more
  202. 8:02modern than I thought.
  203. 8:04Oh, yeah. Oh. Oh.
  204. 8:08Uh yeah, I think we've had some water
  205. 8:10ingress. And yeah, I was right about the
  206. 8:13about the O-ring seal around there. Oh,
  207. 8:16it's got a wireless charger receiver
  208. 8:19module in it. Yeah, this is
  209. 8:21This is pretty recent. And what's a a
  210. 8:23dry card? That is a That That That's a
  211. 8:27desiccant. That's a stick-on desiccant.
  212. 8:30I don't think I've seen those before.
  213. 8:33Leave it in the comments down below if
  214. 8:34you've ever used a dry card
  215. 8:37stick-on desiccant. And of course, do
  216. 8:39not eat it. Okay, this is way more
  217. 8:41modern than I thought. And yeah, well,
  218. 8:44there's your problem.
  219. 8:46Um what the heck has happened around
  220. 8:49there?
  221. 8:50Oh.
  222. 8:51And it stopped working. What has broken?
  223. 8:53Well, you know,
  224. 8:55uh what has What the heck has happened
  225. 8:59there? I don't know. And what is that?
  226. 9:02That's like a ST part, is it? Oh, no.
  227. 9:05Sorry to all you Atmel fanboys.
  228. 9:08I was mistaken. Atmel part looks like
  229. 9:10date code 2013.
  230. 9:13Whatever has happened there is
  231. 9:16unpleasant
  232. 9:18to say the least.
  233. 9:20Um
  234. 9:20oops. And that is obviously just Yeah,
  235. 9:24it's had some water ingress and
  236. 9:26corrosion there. So, yeah, there's some
  237. 9:28breakdown of the traces. Maybe it's
  238. 9:30Yeah, it's gotten down under some traces
  239. 9:32on the top side. I can't quite see on
  240. 9:34the camcorder screen. Yeah, the reason
  241. 9:36for the generic failure is pretty
  242. 9:39obvious there. Curiously, it does have a
  243. 9:42little micro USB. That would just be for
  244. 9:46interface or something. You wouldn't
  245. 9:49power it from that, would you? I can't
  246. 9:52readily see that number there, but
  247. 9:53that's obviously our compass.
  248. 9:57Jeez, when I was a boy, we did literally
  249. 10:00roll our own
  250. 10:01>> [laughter]
  251. 10:02>> magnetic flux gate compass. So, yeah,
  252. 10:05coils and everything. Now, it's like
  253. 10:08just plonk your SMD part down and Bob's
  254. 10:11your I²C or SPI interface, Bob's your
  255. 10:14uncle.
  256. 10:15Yeah, that corrosion's not pretty, is
  257. 10:17it?
  258. 10:19Yeah, so I'd say corrosion issue
  259. 10:22somewhere. Look at [laughter] that poor
  260. 10:24innocent
  261. 10:26micro USB connector.
  262. 10:30Oh, that's terrible, Muriel. And trying
  263. 10:32to power it from that, whether or not
  264. 10:34it's that is actually doable or not, I
  265. 10:36don't know, but yeah, diddly-squat. And
  266. 10:40really, that sort of solar cell is not
  267. 10:43going to give enough juice to actually
  268. 10:46power this power this Atmel processor, I
  269. 10:49don't think, just on its own. So, this
  270. 10:51is like really it just trickle charging
  271. 10:54when off would be my guess. And powering
  272. 10:58it up with an external 4-V supply here
  273. 11:01at
  274. 11:02I've got a couple hundred milliamps set,
  275. 11:04that's plenty.
  276. 11:06What what what what?
  277. 11:08No overload and drawing no current. I'm
  278. 11:10talking like 7 microamps or something.
  279. 11:15Uh
  280. 11:16Now, if we try and
  281. 11:17press the buttons,
  282. 11:19nope, nope, nope. He's dead, Jim. And
  283. 11:22the obvious problem is
  284. 11:25water ingress.
  285. 11:27>> [snorts]
  286. 11:27>> So,
  287. 11:29probably not worth trying to debug that
  288. 11:31further. It's just corroded around the
  289. 11:34SD connector there and those pins are
  290. 11:36corroded and everything. And yeah, nah,
  291. 11:40she's come a gutser. That's what you get
  292. 11:42in the marine environment, I'm afraid.
  293. 11:45What what what what? Well, we do like
  294. 11:48rethinking power supplies here on the
  295. 11:51EEVblog. So, thank you very much to
  296. 11:53Digital Power Systems in Germany. I know
  297. 11:56all my German viewers
  298. 11:59familiar Digital Power Systems. Have we
  299. 12:02done Are they having a second suck of
  300. 12:04the sav?
  301. 12:07Okay.
  302. 12:08Let's crack her open.
  303. 12:10Obviously, maybe some little power
  304. 12:12supply modules or something.
  305. 12:14Let's have a squeeze before we read the
  306. 12:16note. Oh, DIN jobbie, yes, we've had
  307. 12:18these before. That's I'm sure we have.
  308. 12:21They've sent another couple in. What is
  309. 12:24different? We've got a little selection
  310. 12:27switch now. This looks like a
  311. 12:29Yeah,
  312. 12:31that's a selection switch. And then
  313. 12:33we've got a
  314. 12:34USB-C
  315. 12:36out. So, let me read the note cuz I'm
  316. 12:40sure they're having a second suck of the
  317. 12:42sav. Dear Dave, we are pleased to submit
  318. 12:44our new power supplies for review. USB
  319. 12:47AC power delivery and HDR 20 5 9 and 12
  320. 12:51V. Could you highlight the scan and
  321. 12:53trust feature? What's a scan and trust?
  322. 12:56To I
  323. 12:58do we Okay. Oh, there we go. There's our
  324. 13:00scan and trust. There you go.
  325. 13:02I shall scan it and see if we can trust
  326. 13:04it cuz you never know. We might get
  327. 13:07counterfeit jobbies. So, let's get our
  328. 13:09shoe phone out. Oh, yeah. There you go.
  329. 13:11powersystems.eu
  330. 13:14Come on.
  331. 13:16You can do it. What's it going to tell
  332. 13:17me?
  333. 13:19That is genuine.
  334. 13:21Oh, there you go. Pass. So, it knows the
  335. 13:23individual serial number on it. Test
  336. 13:26started. Okay. There you go. Duration 20
  337. 13:29seconds. How do you know how long their
  338. 13:31production tests takes? It passed and we
  339. 13:34can get the data sheets and we can show
  340. 13:36measurements.
  341. 13:38Oh,
  342. 13:39look at this. It's got all the test
  343. 13:40results.
  344. 13:42Test from their
  345. 13:44production test jig. Is that what they
  346. 13:46were measuring? 5.15 and it should be
  347. 13:48between 4.9 and 5.4.
  348. 13:51I assume that's upper and lower bound
  349. 13:53there. Pass pass pass. Look at all this.
  350. 13:57And this is for the individual unit. OH,
  351. 14:00WOW. This is a Bobby dazzler.
  352. 14:03I've never seen this before. This is
  353. 14:05very impressive.
  354. 14:08I'm so impressed, I will accept their
  355. 14:10cookies. Wow, it just it just keeps
  356. 14:12going. It keeps going. Whoa whoa whoa
  357. 14:15whoa whoa. What was that? Manual
  358. 14:17operation versity. Oh, okay, it's
  359. 14:18telling them this is their production
  360. 14:21test instructions.
  361. 14:23This is crazy. So, this message would
  362. 14:26have been sent to the production test
  363. 14:28operator, reverse the USB-C cable and
  364. 14:30retest to verify. So, somebody's got to
  365. 14:32sit there and flip it over.
  366. 14:35It didn't take them long, of course, to
  367. 14:37test it because all of these are just
  368. 14:39automated test bang bang bang bang bang,
  369. 14:41you know, they take like
  370. 14:430.1 of a second each or something.
  371. 14:46That is great. Does anyone else in the
  372. 14:48industry have something like that? I
  373. 14:50really like that because
  374. 14:53you could get counterfeits of these
  375. 14:55things and this helps you verify that
  376. 14:58these are legit.
  377. 14:59Great stuff. Huge thumbs up. So, we've
  378. 15:01got two Oh, 240 only. Sorry, Yanks.
  379. 15:05Maybe they do make a Yankee version, but
  380. 15:08it's not universal input. It's 207 to
  381. 15:10253.
  382. 15:12Because 253 is the absolute maximum here
  383. 15:14in Australia. And I'm a bit confused
  384. 15:18here. Look, and here's our 5-V output.
  385. 15:21Great little Phoenix small pitch Phoenix
  386. 15:23connectors there. Excellent.
  387. 15:25But it's got 5 V
  388. 15:2720 milliamps and or like 20 W. So, what
  389. 15:31is it? 5 V at 3 amps or 5 V at 20
  390. 15:34milliamps? What's going on? Oh, okay,
  391. 15:36that must be 20 W
  392. 15:39for the USB-C power It's actually
  393. 15:41labeled there USB-C. Okay. So, that's
  394. 15:43for the USB-C power delivery and we only
  395. 15:46got a lousy 5 V at 20 milliamps out here
  396. 15:49just for like like a little LED or
  397. 15:51something.
  398. 15:53Okay, like
  399. 15:54is that like constant current driver
  400. 15:57with 5 V compliance voltage for a LED?
  401. 16:00Like driving an external LED? I think
  402. 16:02that I think that's a constant current
  403. 16:03output.
  404. 16:05In that case, if it is, I have to RTFM,
  405. 16:08but if it is, they should put CC there,
  406. 16:10you know, tell you that it's constant
  407. 16:12current. And you don't want any of those
  408. 16:14pesky electrolytic capacitors in there,
  409. 16:17either.
  410. 16:18And those buggers just fail. And zero
  411. 16:20screws for that. It just pops out. Very
  412. 16:23nice, just held in uh flips at the
  413. 16:25bottom like that. It's got the requisite
  414. 16:27little springy thing for the DIN. So,
  415. 16:31let's have a squeeze at the PCB. That is
  416. 16:33one big ass poly put the kettle on cap
  417. 16:36there. 4.7 mic there. That is absolutely
  418. 16:39enormous. We have double-sided load.
  419. 16:43Ooh, discharge capacitor before work.
  420. 16:46Very nice spacing around there between
  421. 16:49the primary and secondary. No worries
  422. 16:51whatsoever. There's our output
  423. 16:53capacitance for our 5-V output there.
  424. 16:56And what's that jobbie? Oh, I'm going to
  425. 16:59need the microscope for that. They've
  426. 17:01absolutely nuked
  427. 17:03the number from that one.
  428. 17:05As smooth as A BABY'S BUTT. LOOK AT
  429. 17:07THAT. ANYWAY, as not much to identify
  430. 17:11there in the primary side drive. Got
  431. 17:14LM324
  432. 17:17there on the secondary side.
  433. 17:20But
  434. 17:21apart from that,
  435. 17:23meh, there's our a couple of feedback
  436. 17:26there. Couple of big shunt resistors
  437. 17:28there. There's our voltage selection
  438. 17:30switch. It's just got a little LED
  439. 17:33indicator there.
  440. 17:35And the inductory doohickey and the
  441. 17:37transformer. Not much else. You don't
  442. 17:40need much. There's our primary side
  443. 17:42switching MOSFET there. Not sure what
  444. 17:44that one is.
  445. 17:46Couple of diodes shoved up the clacker
  446. 17:48there.
  447. 17:49And looking over at the primary side,
  448. 17:52look at this. Input fuse. Very nice. And
  449. 17:57that there
  450. 17:58looks to be one big ass MOV.
  451. 18:02Look at it. And we've got a secondary
  452. 18:04one there as well. I have to pull the
  453. 18:08part numbers off those, but wow, that's
  454. 18:11a beast. And that looks like an X class
  455. 18:14cap there and a common mode choke. So,
  456. 18:17that
  457. 18:18is beautiful. Well protected front end.
  458. 18:21I like it that. And the USB-C jobbie
  459. 18:24very similar. We've got the input fuse
  460. 18:27in here. And what I thought was a second
  461. 18:30MOV in parallel here, it's not because
  462. 18:34they've got another one over here, which
  463. 18:36didn't make sense. And putting two MOVs
  464. 18:38in parallel doesn't make sense. And the
  465. 18:40giveaway is the Y5V
  466. 18:42in that part number. So, that's the
  467. 18:45actual
  468. 18:46dielectric inside this thing. That's the
  469. 18:48characteristic of the cap there. So,
  470. 18:52yeah, I'll pull up a data sheet. I found
  471. 18:54that one. I couldn't find searching this
  472. 18:56part number, but it's obviously the same
  473. 18:59there. So, I believe it looks like,
  474. 19:01based on the traces, that it's just in
  475. 19:03parallel with the input there and hence
  476. 19:07the MOV across there is protecting that.
  477. 19:10So, yeah, cool. You don't usually see
  478. 19:15those sort of caps. Nice. And sure
  479. 19:18enough, no electrolytic capacitor. We've
  480. 19:20got a poly put the kettle on there.
  481. 19:22There's our USB-C
  482. 19:24output jack. And we've got another
  483. 19:26massive MOV there as well, is it? I'm
  484. 19:29going to have to pull the part number
  485. 19:30off that. Apart from that, yeah, very
  486. 19:33similar arrangement to what we had
  487. 19:35before, except we now have a bit more
  488. 19:38smarts here because it's USB-C. So, see
  489. 19:42if I can pull a number off that. Got an
  490. 19:44LM324
  491. 19:46again and
  492. 19:48some sort of power delivery part up
  493. 19:51there. They're all in one chip these
  494. 19:55days.
  495. 19:56Don't have to do any fancy pantsy stuff.
  496. 19:58Unfortunately, only designed in Germany,
  497. 20:01not made in Germany.
  498. 20:03Boohoo. Anyway, these are very cool. I
  499. 20:06think we might have powered them up last
  500. 20:08time and had a look, but I'm not going
  501. 20:09to do full performance testing in the
  502. 20:11mailbag, but they look like they can do
  503. 20:13the business. They're very well designed
  504. 20:16and manufactured. I like them. I'll link
  505. 20:19them in down below. DPS, digital power
  506. 20:22systems from Deutschland. Thank you very
  507. 20:24much, Hungry Minds, for sending this one
  508. 20:27in. This one I was actually going to get
  509. 20:30one of these myself cuz I've I've seen
  510. 20:32it around and I thought that looks
  511. 20:34awesome, but
  512. 20:36they contacted me and said, "Hey, can we
  513. 20:39send one in the mailbag?" You bet. Let's
  514. 20:41take a look at it. This is going to be
  515. 20:43one of these things where if you're
  516. 20:46after a present for somebody,
  517. 20:48though it's upside down, all the
  518. 20:50electrons are going to fall out or all
  519. 20:52the papers going to fall out. Look at
  520. 20:54this. It's the book, the ultimate guide
  521. 20:58to rebuilding civilization.
  522. 21:01This is one of these
  523. 21:03It's sealed for our protection. This is
  524. 21:05one of these coffee table books and if
  525. 21:07you're after like a present for someone
  526. 21:10and you don't know what to get,
  527. 21:11something like this is awesome. It's an
  528. 21:14illustrated guide as by Hungry Minds and
  529. 21:17it's an illustrated There's the serial
  530. 21:19barcode for those playing along at home
  531. 21:21and
  532. 21:23yeah, let's get this open. If you want
  533. 21:24to rebuild civilization, we've got a
  534. 21:27postcard here with a classic ouroboros,
  535. 21:30a like a dragony thing eating its own
  536. 21:33tail. Awesome postcard. Hey, Hungry
  537. 21:36Miner, what you're holding in your hands
  538. 21:37right now is not just a book, it's an
  539. 21:39opportunity to immerse yourself in
  540. 21:41fascinating worlds, explore new ideas
  541. 21:43and learn something new. We worked on
  542. 21:45this project with passion and we hope
  543. 21:46the book brings you a joy and value. If
  544. 21:49you have any questions or like to give
  545. 21:50feedback, contact them. There you go,
  546. 21:52and hungryminds.art.
  547. 21:55Is it? What? Didn't know there was a dot
  548. 21:57art
  549. 21:57TLD. There you go.
  550. 22:00There is.
  551. 22:01Sieva and Tim are the creators of this.
  552. 22:04Awesome.
  553. 22:05Love their illustrations. Beautiful. We
  554. 22:08could get destroyed very shortly by AI,
  555. 22:11so
  556. 22:12yeah, it's good to have a book, paper,
  557. 22:16digital rubbish that AI can't destroy
  558. 22:19and then we can rebuild civilization.
  559. 22:23>> [laughter]
  560. 22:23>> Yeah, I was actually going to get this
  561. 22:26for the dudes and cuz they love stuff
  562. 22:28like this. And sorry, I'm not going to
  563. 22:30be able to do it justice. It is just
  564. 22:33enormous, but apparently it's an
  565. 22:35illustrated guide. The story of humans
  566. 22:38is a story of discovery. No matter on
  567. 22:40which planet, which timeline, in which
  568. 22:41branch of the multiverse you may find
  569. 22:43people, they will be busy improving
  570. 22:45their lives. This is our great gift and
  571. 22:47our curse depending on which way you
  572. 22:48look at it. We can never stop and be
  573. 22:50satisfied with whatever we have
  574. 22:51achieved. Yeah, AI. We'll keep spreading
  575. 22:54faster, getting stronger and growing
  576. 22:56bigger until we fall. Yeah, AI. The
  577. 23:00ultimate guide to rebuilding
  578. 23:01civilization. I hope that it helps with
  579. 23:03your civilization will remain standing
  580. 23:04and if not, well, at least you can add a
  581. 23:06few beautiful pages to the book.
  582. 23:10Now, I do believe these are all hand
  583. 23:13illustrated. Disclaimer, this book is
  584. 23:15designed to provide general information
  585. 23:17only.
  586. 23:18Oh, copyright 2024 the Bad Idea Company.
  587. 23:21Well, I don't think this was a bad idea.
  588. 23:24So, everyday life, world, art, music,
  589. 23:27human, games, delicatessen, society,
  590. 23:29electricity, optics, mechanics, building
  591. 23:31tools, materials, food, animals, plants,
  592. 23:33medicine, first things, sailing,
  593. 23:35aviation, industry, military.
  594. 23:38Anyway, look at this. Making fire. How
  595. 23:41to actually make fire.
  596. 23:44>> [laughter]
  597. 23:45>> How to find water.
  598. 23:47Look, I'm
  599. 23:48not going to spoil the whole thing, so
  600. 23:50I'll just flip to a few random pages.
  601. 23:53X-ray, X-ray tubes, X-ray images. How to
  602. 23:56do this. How to rebuild civilization.
  603. 23:58How to make tea for you tea aficionados.
  604. 24:01I know you're out there.
  605. 24:03And animals. What do we get to do with
  606. 24:06animals? I love the like the paper.
  607. 24:09Look, it's like aged kind of paper.
  608. 24:13Trust me, that's they've been very
  609. 24:15deliberate on that. They chose this
  610. 24:17paper very deliberately. It is all
  611. 24:20I hope that's showing up on camera. I
  612. 24:21think it is. It's like got that sort of
  613. 24:24like brown old found, you know, you
  614. 24:27found it in the back reaches of, you
  615. 24:29know, the library somewhere and it's
  616. 24:32fantastic. Traps, how to trap animals
  617. 24:34and stuff like that. Food, how to make
  618. 24:36I mean, you forgot how to make food.
  619. 24:38There you go, cotton candy. Evaporation,
  620. 24:41sugar, materials. Well, tungsten,
  621. 24:44aluminum, mercury, all the all the
  622. 24:47These are great illustrations.
  623. 24:50Paints and paintbrushes, forging.
  624. 24:54>> [laughter]
  625. 24:55>> Roofing and tiles.
  626. 24:58This is just This is beautiful. And then
  627. 25:00the bicycles. Look at this. And the
  628. 25:03flywheel. Fantastic.
  629. 25:06Perpetual motion, lenses and
  630. 25:08refractions.
  631. 25:09Oh, vacuum tubes. There you go,
  632. 25:11incandescent bulbs, electronics and
  633. 25:13soldering. There you go. You're getting
  634. 25:15the basics there.
  635. 25:17>> [laughter]
  636. 25:18>> Manufacture your own crude soldering
  637. 25:20iron there. Power plants.
  638. 25:23Sailing, submarines,
  639. 25:26waste management, very important. I'm
  640. 25:29sure it's got plumbing and martial arts.
  641. 25:32This is great. Bow and crossbow,
  642. 25:34everyday life. Look at this food
  643. 25:36processor.
  644. 25:38Oh, my god, perfume. Interesting. Words.
  645. 25:42On air, long-distance communication.
  646. 25:43There you go. Radio, telephone, ciphers,
  647. 25:48painting,
  648. 25:49origami.
  649. 25:51Can't forget music. Got to rebuild your
  650. 25:52civilization with music.
  651. 25:55And look, isn't it just gorgeous? It is
  652. 25:57absolutely
  653. 25:59gorgeous. Wow, huge thumbs up to that.
  654. 26:03There you go. I'll try and show you that
  655. 26:06cuz it's such a big book. Try and show
  656. 26:08you that. Wires and transformers,
  657. 26:10electricity. [snorts]
  658. 26:11That is just a thing of beauty. A joy
  659. 26:15forever. So, that is absolutely
  660. 26:17incredible. The book. It's called The
  661. 26:21Ultimate Guide to Rebuilding
  662. 26:22Civilization. I will link it in down
  663. 26:24below. It's beautifully produced,
  664. 26:27beautifully illustrated. I love the like
  665. 26:29that'll be like acid-free paper or
  666. 26:32whatever it's printed on, I think. And
  667. 26:34it just looks and feels absolutely
  668. 26:37beautiful. Great gift. If you don't know
  669. 26:40what to get somebody, this is just like
  670. 26:42absolutely fantastic.
  671. 26:45And it's just a you know, it's just
  672. 26:46something that you can just pick up and
  673. 26:48just flick to a random page and just
  674. 26:50really appreciate and maybe learn
  675. 26:52something as well. [clears throat]
  676. 26:54Very cool. The dudes are going to love
  677. 26:57that, so I'm taking that home tonight.
  678. 26:59That is a score. As I said, I was going
  679. 27:00to get one, but they contacted me and
  680. 27:02said, "Hey, you want the book?" Yep, you
  681. 27:05bet you. What a mailbag.
  682. 27:08That gets two thumbs up and a big thumbs
  683. 27:11hey.
  684. 27:16>> [music]

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