[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,We know more about\Nother planets than our own, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and today, I want to show you\Na new type of robot Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,designed to help us better understand Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,our own planet. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It belongs to a category Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,known in the oceanographic community\Nas an unmanned surface vehicle, or USV, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and it uses no fuel. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Instead, it relies\Non wind power for propulsion, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and yet it can sail around the globe Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,for months at a time. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So I want to share with you\Nwhy we built it, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and what it means for you. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,A few years ago, I was on a sailboat\Nmaking its way across the Pacific, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,from San Francisco to Hawaii. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,I had just spent the past 10 years Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,working nonstop developing video games\Nfor hundreds of millions of users, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and I wanted to take a step back\Nand look at the big picture Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and get some much-needed thinking time. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,I was the navigator on board, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and one evening, after a long session\Nanalyzing weather data Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and plotting our course, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,I came up on deck and saw\Nthis beautiful sunset, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and a thought occurred to me; Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,how much do we really\Nknow about our oceans? Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The Pacific was stretching all around me\Nas far as the eye could see, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and the waves were\Nrocking our boat forcefully, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,a sort of constant reminder\Nof its untold power. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,How much do we really\Nknow about our oceans? Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,I decided to find out. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,What I quickly learned\Nis that we don't know very much, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and the first reason is just\Nhow vast oceans are, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,covering 70 percent of the planet, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and yet we know they drive\Ncomplex planetary systems Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,like global weather, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,which affect all of us on a daily basis, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,sometimes dramatically. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And yet, those activities\Nare mostly invisible to us. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Ocean data is scarce by any standards. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Back on land, I had grown used\Nto accessing lots of sensors, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,billions of them actually, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,but at sea, in situ data\Nis scarce and expensive. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Why? Because it relies\Non a small number of ships and buoys. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,How small a number\Nwas actually a great surprise. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Our National Oceanic\Nand Atmospheric Administration, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,better known as NOAH, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,only has 16 ships Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and there are less than\N200 buoys offshore globally. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It is easy to understand why. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The oceans are an unforgiving place, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and to collect in situ data,\Nyou need a big ship Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,capable of carrying a vast amount of fuel Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and large crews, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,costing hundreds\Nof millions of dollars each, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,or big buoys tethered to the ocean floor\Nwith a four-mile-long cable Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and waited down by a set of train wheels Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,which is both dangerous to deploy\Nand expensive to maintain. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,What about satellites, you might ask? Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Well, satellites are fantastic, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and they have taught us\Nso much about the big picture Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,over the past few decades. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,However, the problem with satellites Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is they can only see through one micron Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,of the surface of the ocean. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,They have relatively poor\Nspatial and temporal resolution, Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and their signal needs to be corrected Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,for cloud cover and land effects\Nand other factors. Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So what is going on in the oceans? Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And what are we trying to measure?