WEBVTT 00:00:00.359 --> 00:00:04.640 Now it's no great secret that I hate the cables and fragile connectors 00:00:04.080 --> 00:00:08.400 that Modern electronic devices use for battery recharging but We're 00:00:07.720 --> 00:00:14.400 just stuck with cable clutter right Ah What the 00:00:12.559 --> 00:00:16.560 heck seriously guys like next time just 00:00:15.639 --> 00:00:20.199 find something on shutter stock to represent lots of cables huh All right 00:00:19.520 --> 00:00:24.039 Yeah That would have been fine Anyway Thanks to Modern technology and by 00:00:23.359 --> 00:00:27.920 Modern I mean demonstrated about a century ago by nikola Tesla but Now 00:00:27.199 --> 00:00:32.040 finally becoming a commercial product wireless power is 00:00:30.519 --> 00:00:35.600 here and we are very close to saying goodbye to cables 00:00:34.079 --> 00:00:38.120 forever but how does it work I could just 00:00:37.239 --> 00:00:41.120 say magnets and leave you to infer the rest but the actual science is 00:00:40.800 --> 00:00:44.879 much more interesting than that electricity and magnetism are 00:00:43.879 --> 00:00:48.280 actually much more closely related than many people realize 00:00:47.199 --> 00:00:52.039 a current carrying wire coil around an Iron core is called 00:00:50.800 --> 00:00:55.760 an electromagnet Because it uses alternating current electricity to 00:00:54.920 --> 00:00:59.399 generate a fluctuating magnetic field reversing the 00:00:58.640 --> 00:01:02.440 situation and applying magnetic field whose polarity 00:01:01.680 --> 00:01:07.240 is constantly reversing to our wire coil will generate AC 00:01:05.560 --> 00:01:10.840 electricity this is called electromagnetic induction and is the 00:01:09.680 --> 00:01:14.280 basis of the wireless power solutions that we find in consumer 00:01:13.320 --> 00:01:17.600 grade devices like phones and Electric toothbrushes and 00:01:16.799 --> 00:01:22.079 What's great about it is that unlike microwave based wireless power It is 00:01:21.079 --> 00:01:25.759 safe to have Next To Your Head while you sleep or you know in your mouth and st 00:01:25.119 --> 00:01:31.560 All right so let summary the pros and cons advantage number one is a big 00:01:28.680 --> 00:01:36.000 one and It's dev to bed compati 00:01:33.960 --> 00:01:38.320 Dock in car the table inite coffee 00:01:37.200 --> 00:01:42.799 shop andom It's charging sign me up advantage number two 00:01:41.520 --> 00:01:45.960 is no more warn out connectors micro USB can be AS fragile 00:01:45.320 --> 00:01:49.640 and generally terrible as it wants If I only have to use it once in a 00:01:48.880 --> 00:01:53.520 while to load a new ROM on my phone love it but Nothing is 00:01:52.320 --> 00:01:57.520 perfect so drawback number one is that It's still not ubiquitous It's 00:01:56.360 --> 00:02:00.439 still too expensive for many manufacturers to include with their 00:01:59.520 --> 00:02:03.880 device and most charging pads I mean however 00:02:02.600 --> 00:02:06.759 cool this might be aren't built into anything yet and 00:02:05.920 --> 00:02:10.239 still need to sit there and be plugged into the wall The Good news is that 00:02:09.520 --> 00:02:14.400 after market solutions aren't too bad a rear cover for a Galaxy S5 costs 30 00:02:13.959 --> 00:02:19.280 bucks and a compatible Pad on eBay is less than 20 bucks number two is 00:02:18.480 --> 00:02:23.120 inefficiency compared to wired charging your device 00:02:21.920 --> 00:02:26.080 will charge slower and heat up more for 00:02:25.120 --> 00:02:29.360 me personally this isn't a big deal when got time like 00:02:28.480 --> 00:02:34.239 when I'm sleeping I can wirelessly and I'm in a Hurry I can 00:02:32.239 --> 00:02:36.319 plug in number is that range is very 00:02:35.519 --> 00:02:40.239 limited right now you pretty much Put the two surfaces right Next To 00:02:39.239 --> 00:02:44.400 each other and orientation is picky with most devices 00:02:43.040 --> 00:02:47.200 but solutions like using grooved surfaces or 00:02:46.159 --> 00:02:51.000 additional magnets to help with alignment have been used successfully to 00:02:50.200 --> 00:02:55.120 help with this and next gen solutions should help alleviate both of 00:02:53.920 --> 00:02:58.200 these issues a fair bit Now the last point Here is 00:02:57.599 --> 00:03:02.360 something that I wasn't really how to classify in my List 00:03:00.760 --> 00:03:04.519 of pros and cons and that's the speed at Which this 00:03:03.840 --> 00:03:09.080 technology is developing It's advantageous because it means amazing new 00:03:07.840 --> 00:03:12.840 solutions are coming but it also ties into the biggest 00:03:11.400 --> 00:03:15.840 disadvantage yet which is compatibility folks 00:03:14.840 --> 00:03:19.200 who remember beta versus vhs and HD DVD versus blu-ray 00:03:18.680 --> 00:03:22.920 you all know what I'm talking about there are two main competing standards 00:03:22.159 --> 00:03:27.040 today and while they both rely on a power transmission Pad and 00:03:26.040 --> 00:03:32.400 a compatible receiver either inside or attached to your device Don't 00:03:30.319 --> 00:03:35.519 work with each other backed by the wireless power 00:03:33.920 --> 00:03:39.200 consortium is by far the most popular amongst consumers 00:03:37.319 --> 00:03:42.599 right now but pma the standard backed by the power matters 00:03:41.159 --> 00:03:44.560 alliance is likely to continue to gain Support with 00:03:44.159 --> 00:03:48.280 corporate organizations and governments with their cloud-based 00:03:47.159 --> 00:03:51.159 controller software feature that allows these entities to 00:03:50.319 --> 00:03:56.079 better Manage their wireless charging network the alliance for wireless power 00:03:54.680 --> 00:03:59.079 is yet another group and their res branded resonant 00:03:58.239 --> 00:04:02.400 magnetic coupling wireless charging standard looks Super 00:04:01.519 --> 00:04:05.360 exciting and promises to enable more convenient 00:04:04.720 --> 00:04:08.560 solutions by offering dramatically better range and 00:04:08.000 --> 00:04:12.799 multi-device charging while maintaining reasonable efficiency they 00:04:11.680 --> 00:04:17.280 recently closed a standard consolidation deal with pma though So 00:04:15.519 --> 00:04:19.720 my point isn't Which One You should invest in now in 00:04:19.000 --> 00:04:23.639 terms of buying a bunch of Gear but just that the standards war is 00:04:22.400 --> 00:04:27.000 just warming up with new developments coming hard and Fast 00:04:26.440 --> 00:04:31.520 at the end of the day though whether You're a time Child a human or an OT 00:04:30.639 --> 00:04:35.360 hopefully the thing We can all agree on is that wireless 00:04:33.919 --> 00:04:38.759 charging rocks and the future is going to be freaking Awesome with like 00:04:37.800 --> 00:04:41.600 wireless charging that can basically be in the same room as you and provide 00:04:40.919 --> 00:04:45.320 power to all your devices space age stuff man speaking 00:04:44.280 --> 00:04:48.800 of space age stuff shutterstock isn't It's actually really 00:04:47.840 --> 00:04:52.520 simple you head over to shutterstock.com where you can use their Super powerful 00:04:51.479 --> 00:04:56.440 image search to browse their entire 35 plus million 00:04:55.199 --> 00:04:59.919 image library for free pick the ones you want and pay a 00:04:58.759 --> 00:05:03.960 reasonable price to download them and use them with no royalties their 00:05:02.680 --> 00:05:06.520 allart service is great for individuals and they 00:05:05.800 --> 00:05:10.160 have reasonably price subscriptions for small organizations like 00:05:08.800 --> 00:05:13.320 Mine and they've even got Enterprise plans that include 00:05:12.320 --> 00:05:16.479 more flexible usage rights and unlimited number of users and 00:05:15.680 --> 00:05:19.479 even research assistants so whoever you are and 00:05:18.720 --> 00:05:22.960 whatever the scope of your 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