[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:14.04,0:00:17.62,Default,,0000,0000,0000,,Bean bags are awesome. Dialogue: 0,0:00:19.23,0:00:23.22,Default,,0000,0000,0000,,But I see a few people out there\Nwho are standing, Dialogue: 0,0:00:23.24,0:00:24.61,Default,,0000,0000,0000,,we've got some over here, Dialogue: 0,0:00:24.63,0:00:28.39,Default,,0000,0000,0000,,and standing takes more\Nwork than lounging. Dialogue: 0,0:00:29.42,0:00:32.60,Default,,0000,0000,0000,,Using the Live Strong\NOrganization's online database Dialogue: 0,0:00:32.62,0:00:35.11,Default,,0000,0000,0000,,of weight loss resources, Dialogue: 0,0:00:35.13,0:00:36.41,Default,,0000,0000,0000,,you can calculate Dialogue: 0,0:00:36.44,0:00:38.56,Default,,0000,0000,0000,,that by the time I'm done\Nwith this speech, Dialogue: 0,0:00:38.58,0:00:40.47,Default,,0000,0000,0000,,those of you who are standing Dialogue: 0,0:00:40.50,0:00:44.89,Default,,0000,0000,0000,,will have burned 7.5 more calories Dialogue: 0,0:00:44.91,0:00:47.45,Default,,0000,0000,0000,,than those of you who are bean-bagging it. Dialogue: 0,0:00:47.47,0:00:48.54,Default,,0000,0000,0000,,(Laughter) Dialogue: 0,0:00:48.56,0:00:50.88,Default,,0000,0000,0000,,Okay, here's a question, Dialogue: 0,0:00:50.90,0:00:53.63,Default,,0000,0000,0000,,speaking of weight loss,\Nspecifically weight, Dialogue: 0,0:00:53.65,0:00:54.80,Default,,0000,0000,0000,,this speech is live. Dialogue: 0,0:00:54.83,0:00:56.69,Default,,0000,0000,0000,,I'm actually here in front of you guys, Dialogue: 0,0:00:56.71,0:00:57.91,Default,,0000,0000,0000,,we're all here together. Dialogue: 0,0:00:57.93,0:00:59.78,Default,,0000,0000,0000,,But this speech is being recorded Dialogue: 0,0:00:59.80,0:01:03.67,Default,,0000,0000,0000,,and it will become a video\Nthat people can access all over the world Dialogue: 0,0:01:03.70,0:01:05.63,Default,,0000,0000,0000,,on computers, mobile devices, Dialogue: 0,0:01:05.66,0:01:06.88,Default,,0000,0000,0000,,televisions. Dialogue: 0,0:01:06.91,0:01:10.85,Default,,0000,0000,0000,,I weight about 190 pounds. Dialogue: 0,0:01:11.75,0:01:15.75,Default,,0000,0000,0000,,How much will the video weigh? Dialogue: 0,0:01:18.41,0:01:19.98,Default,,0000,0000,0000,,Asking questions like that Dialogue: 0,0:01:20.00,0:01:22.77,Default,,0000,0000,0000,,is what I do every week\Non my channel Vsauce. Dialogue: 0,0:01:23.24,0:01:24.40,Default,,0000,0000,0000,,For the last two years, Dialogue: 0,0:01:24.43,0:01:26.87,Default,,0000,0000,0000,,I have been asking really fun questions, Dialogue: 0,0:01:26.89,0:01:28.24,Default,,0000,0000,0000,,mind-boggling questions, Dialogue: 0,0:01:28.26,0:01:31.26,Default,,0000,0000,0000,,and approaching them\Nas sincerely as I can, Dialogue: 0,0:01:31.28,0:01:34.42,Default,,0000,0000,0000,,celebrating scientific\Nconcepts and scientists. Dialogue: 0,0:01:34.45,0:01:36.38,Default,,0000,0000,0000,,And I research and write Dialogue: 0,0:01:36.40,0:01:37.45,Default,,0000,0000,0000,,and produce and host Dialogue: 0,0:01:37.48,0:01:38.72,Default,,0000,0000,0000,,and edit and upload Dialogue: 0,0:01:38.74,0:01:40.79,Default,,0000,0000,0000,,and run the social media all by myself, Dialogue: 0,0:01:40.82,0:01:42.64,Default,,0000,0000,0000,,but it's not lonely, Dialogue: 0,0:01:42.66,0:01:45.89,Default,,0000,0000,0000,,because Vsauce has\Nmore than 2 million subscribers, Dialogue: 0,0:01:45.91,0:01:50.03,Default,,0000,0000,0000,,and every month, my videos are seen\Nby more than 20 million people. Dialogue: 0,0:01:50.95,0:01:52.02,Default,,0000,0000,0000,,Yeah. Dialogue: 0,0:01:52.04,0:01:54.22,Default,,0000,0000,0000,,(Applause) Dialogue: 0,0:01:54.24,0:01:55.68,Default,,0000,0000,0000,,It's very exciting. Dialogue: 0,0:01:55.70,0:02:01.73,Default,,0000,0000,0000,,I've found that asking a strange question\Nis a great way to get people in, Dialogue: 0,0:02:01.75,0:02:03.90,Default,,0000,0000,0000,,not just people, but fans. Dialogue: 0,0:02:03.93,0:02:06.55,Default,,0000,0000,0000,,And fans are different\Nthan just viewers or an audience, Dialogue: 0,0:02:06.57,0:02:08.90,Default,,0000,0000,0000,,because fans want to come back. Dialogue: 0,0:02:08.92,0:02:11.48,Default,,0000,0000,0000,,They subscribe to you on YouTube Dialogue: 0,0:02:11.51,0:02:13.60,Default,,0000,0000,0000,,and they want to watch\Neverything you've made Dialogue: 0,0:02:13.63,0:02:15.77,Default,,0000,0000,0000,,and everything you plan\Nto make in the future Dialogue: 0,0:02:15.79,0:02:18.24,Default,,0000,0000,0000,,because we are curious people Dialogue: 0,0:02:18.26,0:02:23.64,Default,,0000,0000,0000,,and sparking curiosity is great bait. Dialogue: 0,0:02:23.67,0:02:25.90,Default,,0000,0000,0000,,It's a great way to catch a human. Dialogue: 0,0:02:26.50,0:02:27.84,Default,,0000,0000,0000,,And once you've caught them, Dialogue: 0,0:02:27.86,0:02:31.00,Default,,0000,0000,0000,,you have this captive\Naudience that you can, Dialogue: 0,0:02:31.02,0:02:33.63,Default,,0000,0000,0000,,with the goal in mind\Nof answering the question, Dialogue: 0,0:02:33.65,0:02:36.50,Default,,0000,0000,0000,,accidentally teach a lot of things to. Dialogue: 0,0:02:36.53,0:02:39.02,Default,,0000,0000,0000,,So, let's take a look\Nat some of my videos. Dialogue: 0,0:02:39.04,0:02:40.37,Default,,0000,0000,0000,,Here are eight of them. Dialogue: 0,0:02:41.15,0:02:43.06,Default,,0000,0000,0000,,But down here in the lower-right corner, Dialogue: 0,0:02:43.08,0:02:45.28,Default,,0000,0000,0000,,"What Color is a Mirror?" Dialogue: 0,0:02:45.30,0:02:46.70,Default,,0000,0000,0000,,When people see that, Dialogue: 0,0:02:46.72,0:02:49.15,Default,,0000,0000,0000,,it's very difficult not to click,\Nbecause you think, Dialogue: 0,0:02:49.17,0:02:50.48,Default,,0000,0000,0000,,"Come on, are you serious? Dialogue: 0,0:02:50.50,0:02:53.19,Default,,0000,0000,0000,,How could you possibly\Nanswer that question?" Dialogue: 0,0:02:53.94,0:02:58.01,Default,,0000,0000,0000,,Well, so far, 7.6 million\Npeople have watched Dialogue: 0,0:02:58.04,0:03:00.88,Default,,0000,0000,0000,,this five-minute video\Nabout what color a mirror is. Dialogue: 0,0:03:00.91,0:03:02.91,Default,,0000,0000,0000,,And in that episode, I answer the question Dialogue: 0,0:03:02.93,0:03:07.14,Default,,0000,0000,0000,,and I get a chance to explain\Nwhat would normally be kind of dry topics: Dialogue: 0,0:03:07.16,0:03:08.17,Default,,0000,0000,0000,,optics, Dialogue: 0,0:03:08.20,0:03:10.21,Default,,0000,0000,0000,,diffuse versus specular reflection, Dialogue: 0,0:03:10.24,0:03:12.63,Default,,0000,0000,0000,,how light works,\Nhow light works on the retina, Dialogue: 0,0:03:12.66,0:03:14.42,Default,,0000,0000,0000,,and even the etymology of color terms Dialogue: 0,0:03:14.44,0:03:16.26,Default,,0000,0000,0000,,like white and black. Dialogue: 0,0:03:17.16,0:03:19.10,Default,,0000,0000,0000,,Okay, spoiler alert: Dialogue: 0,0:03:19.12,0:03:21.42,Default,,0000,0000,0000,,mirrors are not clear, Dialogue: 0,0:03:21.45,0:03:23.32,Default,,0000,0000,0000,,they are not silvery, Dialogue: 0,0:03:23.34,0:03:24.93,Default,,0000,0000,0000,,like they're often illustrated. Dialogue: 0,0:03:24.96,0:03:26.38,Default,,0000,0000,0000,,Mirrors, technically speaking, Dialogue: 0,0:03:26.41,0:03:28.43,Default,,0000,0000,0000,,are just a tiny, tiny, little bit ... Dialogue: 0,0:03:29.33,0:03:30.71,Default,,0000,0000,0000,,green. Dialogue: 0,0:03:30.73,0:03:33.94,Default,,0000,0000,0000,,You can demonstrate this\Nby putting two mirrors next to each other, Dialogue: 0,0:03:33.96,0:03:36.11,Default,,0000,0000,0000,,facing so they reflect\Nback and forth forever. Dialogue: 0,0:03:36.14,0:03:39.11,Default,,0000,0000,0000,,Look down that infinite reflection,\Nand it will get dimmer, Dialogue: 0,0:03:39.13,0:03:42.84,Default,,0000,0000,0000,,because some light is lost\Nor absorbed every time, Dialogue: 0,0:03:42.87,0:03:46.00,Default,,0000,0000,0000,,but it will also become greener, Dialogue: 0,0:03:46.02,0:03:47.81,Default,,0000,0000,0000,,because green light, Dialogue: 0,0:03:47.83,0:03:50.86,Default,,0000,0000,0000,,that is light of a wavelength\Nthat we perceive as green, Dialogue: 0,0:03:50.88,0:03:53.67,Default,,0000,0000,0000,,is best reflected by most mirrors. Dialogue: 0,0:03:54.24,0:03:56.36,Default,,0000,0000,0000,,Okay, so, how much does a video weigh? Dialogue: 0,0:03:56.39,0:03:59.39,Default,,0000,0000,0000,,Well, when you stream\Na video onto your computer, Dialogue: 0,0:03:59.42,0:04:01.55,Default,,0000,0000,0000,,that information is temporarily stored Dialogue: 0,0:04:01.58,0:04:03.09,Default,,0000,0000,0000,,using electrons. Dialogue: 0,0:04:03.50,0:04:08.92,Default,,0000,0000,0000,,And the number of electrons on your device\Nwon't actually increase or decrease. Dialogue: 0,0:04:08.95,0:04:11.94,Default,,0000,0000,0000,,But it takes energy\Nto store them in one place, Dialogue: 0,0:04:11.97,0:04:14.51,Default,,0000,0000,0000,,and, thanks to our friend Albert Einstein, Dialogue: 0,0:04:14.53,0:04:16.80,Default,,0000,0000,0000,,we know that energy and mass are related. Dialogue: 0,0:04:16.82,0:04:18.36,Default,,0000,0000,0000,,Okay, so here's the thing: Dialogue: 0,0:04:18.39,0:04:20.34,Default,,0000,0000,0000,,let's say you're watching a YouTube video Dialogue: 0,0:04:20.36,0:04:23.08,Default,,0000,0000,0000,,at a really nice resolution, 720p. Dialogue: 0,0:04:23.11,0:04:25.00,Default,,0000,0000,0000,,Assuming a typical bit rate, Dialogue: 0,0:04:25.03,0:04:30.17,Default,,0000,0000,0000,,we can figure that a minute\Nof YouTube video Dialogue: 0,0:04:30.19,0:04:36.48,Default,,0000,0000,0000,,is going to need to involve\Nabout 10 million electrons on your device. Dialogue: 0,0:04:38.06,0:04:41.17,Default,,0000,0000,0000,,Plugging all those electrons\Nand the energy it takes to hold them Dialogue: 0,0:04:41.20,0:04:43.35,Default,,0000,0000,0000,,in the correct place\Nfor you to see the video, Dialogue: 0,0:04:43.38,0:04:44.49,Default,,0000,0000,0000,,into that formula, Dialogue: 0,0:04:44.51,0:04:47.43,Default,,0000,0000,0000,,we can figure out\Nthat one minute of YouTube video Dialogue: 0,0:04:47.46,0:04:50.77,Default,,0000,0000,0000,,increases the mass of your computer Dialogue: 0,0:04:50.79,0:04:54.56,Default,,0000,0000,0000,,by about 10 to the negative 19th grams. Dialogue: 0,0:04:55.36,0:04:57.18,Default,,0000,0000,0000,,Written out, it looks like this. Dialogue: 0,0:04:57.79,0:04:58.79,Default,,0000,0000,0000,,(Whistle) Dialogue: 0,0:04:58.81,0:04:59.88,Default,,0000,0000,0000,,That's like nothing. Dialogue: 0,0:05:00.64,0:05:04.31,Default,,0000,0000,0000,,You could call that nothing,\Nand you wouldn't really get in trouble, Dialogue: 0,0:05:04.34,0:05:07.49,Default,,0000,0000,0000,,because the best scales\Nwe've ever invented Dialogue: 0,0:05:07.51,0:05:10.55,Default,,0000,0000,0000,,that we could try to use\Nto actually to detect that change Dialogue: 0,0:05:10.58,0:05:13.35,Default,,0000,0000,0000,,are only accurate to 10\Nto the negative 9th grams. Dialogue: 0,0:05:13.85,0:05:15.01,Default,,0000,0000,0000,,So, we can't measure it, Dialogue: 0,0:05:15.04,0:05:17.85,Default,,0000,0000,0000,,but we can, like we just did,\Ncalculate it. Dialogue: 0,0:05:17.88,0:05:20.27,Default,,0000,0000,0000,,And that's really cool\Nbecause when I was a kid, Dialogue: 0,0:05:20.30,0:05:25.33,Default,,0000,0000,0000,,my school had two shelves\Nof science books. Dialogue: 0,0:05:25.36,0:05:26.47,Default,,0000,0000,0000,,That was really cool, Dialogue: 0,0:05:26.49,0:05:28.77,Default,,0000,0000,0000,,but I read all of them\Nwithin, like, two grades, Dialogue: 0,0:05:28.80,0:05:30.71,Default,,0000,0000,0000,,and it was hard to get more books Dialogue: 0,0:05:30.74,0:05:33.04,Default,,0000,0000,0000,,because books are heavy,\Nyou need space for them Dialogue: 0,0:05:33.07,0:05:35.96,Default,,0000,0000,0000,,and moving books around is tougher\Nthan what we can do today. Dialogue: 0,0:05:35.99,0:05:37.44,Default,,0000,0000,0000,,With numbers that small, Dialogue: 0,0:05:37.46,0:05:39.94,Default,,0000,0000,0000,,I can fit thousands of books Dialogue: 0,0:05:39.96,0:05:43.03,Default,,0000,0000,0000,,on my own little personal\Nelectronic reader. Dialogue: 0,0:05:43.06,0:05:45.21,Default,,0000,0000,0000,,I can stream hours and hours Dialogue: 0,0:05:45.23,0:05:47.26,Default,,0000,0000,0000,,and days and days of YouTube video Dialogue: 0,0:05:47.28,0:05:51.02,Default,,0000,0000,0000,,without my computer\Never getting measurably heavier. Dialogue: 0,0:05:52.12,0:05:54.31,Default,,0000,0000,0000,,And as information becomes that light, Dialogue: 0,0:05:54.33,0:05:55.90,Default,,0000,0000,0000,,it becomes a lot more democratic, Dialogue: 0,0:05:55.93,0:05:58.13,Default,,0000,0000,0000,,meaning that more teachers Dialogue: 0,0:05:58.16,0:06:03.51,Default,,0000,0000,0000,,and presenters and creators\Nand viewers than ever before Dialogue: 0,0:06:03.53,0:06:04.64,Default,,0000,0000,0000,,can be involved. Dialogue: 0,0:06:06.64,0:06:07.74,Default,,0000,0000,0000,,Right now, on YouTube, Dialogue: 0,0:06:07.76,0:06:10.48,Default,,0000,0000,0000,,there is an explosion\Nof content like this happening. Dialogue: 0,0:06:10.50,0:06:13.27,Default,,0000,0000,0000,,The three Vsauce channels\Nare down there in the corner. Dialogue: 0,0:06:13.29,0:06:15.51,Default,,0000,0000,0000,,But everyone else,\Nall together, collectively, Dialogue: 0,0:06:15.53,0:06:18.20,Default,,0000,0000,0000,,their views dwarf what I can do alone Dialogue: 0,0:06:18.22,0:06:20.13,Default,,0000,0000,0000,,or with the people that I work with, Dialogue: 0,0:06:20.15,0:06:22.30,Default,,0000,0000,0000,,and that is really, really exciting. Dialogue: 0,0:06:22.32,0:06:25.10,Default,,0000,0000,0000,,It turns out that tapping\Ninto people's curiosity Dialogue: 0,0:06:25.12,0:06:28.28,Default,,0000,0000,0000,,and responsibly answering their questions Dialogue: 0,0:06:28.31,0:06:32.25,Default,,0000,0000,0000,,is a brilliant way to build\Nfans and an audience Dialogue: 0,0:06:32.28,0:06:33.34,Default,,0000,0000,0000,,and get in viewers. Dialogue: 0,0:06:33.36,0:06:36.62,Default,,0000,0000,0000,,It's even a great way\Nfor brands and companies Dialogue: 0,0:06:36.64,0:06:38.05,Default,,0000,0000,0000,,to build trust. Dialogue: 0,0:06:38.83,0:06:43.19,Default,,0000,0000,0000,,So, calculating the weight of a video Dialogue: 0,0:06:43.21,0:06:45.20,Default,,0000,0000,0000,,is kind of a funny question, Dialogue: 0,0:06:45.22,0:06:51.94,Default,,0000,0000,0000,,but I cannot wait to see\Nwhat we ask and answer next. Dialogue: 0,0:06:51.97,0:06:53.86,Default,,0000,0000,0000,,As always, thanks for watching. Dialogue: 0,0:06:53.89,0:06:54.89,Default,,0000,0000,0000,,(Applause)