<div class="xblock xblock-public_view xblock-public_view-vertical" data-init="VerticalStudentView" data-runtime-version="1" data-graded="False" data-has-score="False" data-usage-id="block-v1:MITx+22.011x+3T2018+type@vertical+block@b4c056ec72d04dcfba2e79c7f4d662aa" data-runtime-class="LmsRuntime" data-request-token="00ac93a351dd11ecbe401652d7ed4529" data-block-type="vertical" data-course-id="course-v1:MITx+22.011x+3T2018">
<h2 class="hd hd-2 unit-title">2.3.1. Video Lecture</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-init="XBlockToXModuleShim" data-runtime-version="1" data-graded="False" data-has-score="False" data-usage-id="block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b" data-runtime-class="LmsRuntime" data-request-token="00ac93a351dd11ecbe401652d7ed4529" data-block-type="video" data-course-id="course-v1:MITx+22.011x+3T2018">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Video</h3>
<div
id="video_a62c3a5e1ac04210871e96839193085b"
class="video closed"
data-metadata='{"generalSpeed": 1.0, "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/e82585bdafc34bfa8019fcd49e07b1f1.png?Expires=1638277321&Signature=cDNEbZFT8m%2FiSt%2FLFbpeBFschf0%3D&x-amz-security-token=IQoJb3JpZ2luX2VjECQaCXVzLWVhc3QtMSJHMEUCIAUc3LtC%2FBKolRK11YgB1UJWaaTDGHPTwh9SJaqyvnZRAiEAvQdAzRvKDEz1%2BVcvFT9CzPVwn2NWXvo6uEpVergKmW8qgwQI7f%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgw4NTkyMDU2Mzc0MTEiDIXpACzy4vrRlZnw7yrXAwcU5M8L0sHzW8Xy64EyYeCgLlaJFm%2FRpC99TVKNPrp3Vq4ePR92yPLJkYQkiZlwyTbFmAqTa72nm51PIXl1nheRbpCfVF3uHOyxT%2B9G6DZ2CtVjWl33L%2BkiYBmoT7dhEL8%2Fl6nuyR4ECy9TcCo%2BfyN%2F6JGI2yA%2BBXobNk6C%2FBxrXXUl5lFNwfT2rWN5EwD6Z9ktROEUWzDtYh4dNvodKrRklfeb6oPgrByLaLsP8BvMIjRVpRvgLu2nq%2FWzRU7jlmHMOZMC52mU%2FdFbPPkYi%2BKsAID%2FCQXkpWQcykOsaSLaiB7oCMgnEEM9%2FRJMwPsTyMsNugEbD2Pj6e9deL7plUODht5SWibkIar3WJOcFmKEjHANyGJmddwp6H2FLWBeMLp5uZt3qg3%2FDOxCKaVoQeUMjEKC178uZ%2BmqMig%2F42yY0n4RdLydYGqCDjL66VaCIF07BjBqTum5n1Or7wSkWmD5he%2FGWk1gre6eM%2FKPhT2xC9ep5C1AEguL30IjI54fiFsiv4h%2FcLOFuwyfPkj6IvBp4HrQP2dv6TJl%2Bn%2FUsy%2BaDwfvW0WzGO3NLBc2OpsuUnoe4nkjmdbk2qqv8eeN1iboWCIp3LF8WogWqQcmRe2QAm8zCY4fwTD1pJiNBjqlASWCvTz99W8yd0ib6O%2B8nTGWzw%2F5ecItun14oPeg5bq4JF4RaghUx4Goi%2B6CH2wN4VT51elVe3jZdHLctWUH8rq57G3yCAaIM05THsCY8k65Bo5QkWAccfsn2Ed6Q0oQ%2BmDeWeogfK8Qa%2FMF7gBow%2B2Y46JI6Gkq40g%2FBWiBRiKUHSELx9QVa7i41ZAp3kaO5CIoyORezqCVweYGjnJXhds33Jd7uQ%3D%3D&AWSAccessKeyId=ASIA4QDFFSURUFQJARI7", "lmsRootURL": "https://openlearninglibrary.mit.edu", "publishCompletionUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b/handler/publish_completion", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx22.011x-V001900/MITx22.011x-V001900.m3u8", "https://d2f1egay8yehza.cloudfront.net/MITx22.011x-V001900_DTH.mp4"], "completionPercentage": 0.95, "transcriptTranslationUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b/handler/transcript/translation/__lang__", "streams": "1.00:TF0zmIfvOi4", "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b/handler/transcript/available_translations", "ytTestTimeout": 1500, "autohideHtml5": false, "saveStateUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b/handler/xmodule_handler/save_user_state", "speed": null, "autoAdvance": false, "saveStateEnabled": false, "start": 0.0, "ytApiUrl": "https://www.youtube.com/iframe_api", "duration": 288.62, "recordedYoutubeIsAvailable": true, "showCaptions": "true", "end": 0.0, "ytMetadataEndpoint": "", "prioritizeHls": false, "autoplay": false, "captionDataDir": null, "transcriptLanguage": "en", "transcriptLanguages": {"en": "English"}, "completionEnabled": false, "savedVideoPosition": 0.0}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="a62c3a5e1ac04210871e96839193085b"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
<h3 class="hd hd-4 downloads-heading sr" id="video-download-transcripts_a62c3a5e1ac04210871e96839193085b">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_a62c3a5e1ac04210871e96839193085b">
<div class="wrapper-download-transcripts">
<h4 class="hd hd-5">Transcripts</h4>
<ul class="list-download-transcripts">
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b/handler/transcript/download" data-value="srt">Download SubRip (.srt) file</a>
</li>
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@a62c3a5e1ac04210871e96839193085b/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
© All Rights Reserved