<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@0bd2657a74474000a5d4b0ed4f6845db" data-block-type="vertical" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="VerticalStudentView" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">X-Ray Diffraction: Introduction</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc" data-block-type="video" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="XBlockToXModuleShim" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">X-Ray Diffraction: Introduction</h3>
<div
id="video_9c912545e44e47ea8f2e70b3911f0bbc"
class="video closed"
data-metadata='{"publishCompletionUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc/handler/publish_completion", "end": 0.0, "lmsRootURL": "https://openlearninglibrary.mit.edu", "captionDataDir": null, "start": 0.0, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "speed": null, "prioritizeHls": false, "completionPercentage": 0.95, "ytApiUrl": "https://www.youtube.com/iframe_api", "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc/handler/transcript/available_translations", "generalSpeed": 1.0, "autoplay": false, "transcriptLanguages": {"en": "English"}, "ytTestTimeout": 1500, "transcriptTranslationUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc/handler/transcript/translation/__lang__", "poster": null, "saveStateEnabled": false, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT301212017-V006700_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MIT301212017-V006700/MIT301212017-V006700.m3u8"], "autoAdvance": false, "streams": "1.00:-_P1ki0FRwQ", "saveStateUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc/handler/xmodule_handler/save_user_state", "completionEnabled": false, "showCaptions": "true", "duration": 732.63, "transcriptLanguage": "en", "ytMetadataEndpoint": ""}'
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="9c912545e44e47ea8f2e70b3911f0bbc"></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_9c912545e44e47ea8f2e70b3911f0bbc">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_9c912545e44e47ea8f2e70b3911f0bbc">
<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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc/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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@9c912545e44e47ea8f2e70b3911f0bbc/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@2505a82232334d3fa4e7e7415e9f9b13" data-block-type="vertical" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="VerticalStudentView" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">X-Ray Diffraction: Bragg's Law</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa" data-block-type="video" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="XBlockToXModuleShim" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">X-Ray Diffraction: Bragg's Law</h3>
<div
id="video_5411b45aed1143bfa53eb11746e289aa"
class="video closed"
data-metadata='{"publishCompletionUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa/handler/publish_completion", "end": 0.0, "lmsRootURL": "https://openlearninglibrary.mit.edu", "captionDataDir": null, "start": 0.0, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "speed": null, "prioritizeHls": false, "completionPercentage": 0.95, "ytApiUrl": "https://www.youtube.com/iframe_api", "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa/handler/transcript/available_translations", "generalSpeed": 1.0, "autoplay": false, "transcriptLanguages": {"en": "English"}, "ytTestTimeout": 1500, "transcriptTranslationUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa/handler/transcript/translation/__lang__", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/f1303dc05b224460ae413dfa9f2f1de7.png?x-amz-security-token=IQoJb3JpZ2luX2VjEDsaCXVzLWVhc3QtMSJIMEYCIQCXf972IlNqgXavmtdDM2cOn%2Fq8OXNinluO%2F%2BK8Tz0M8wIhAKdDmIflENNNALOOpgXsP4T8Nr0mrqKrZOM8ClpY%2B0LaKrsFCFMQBBoMODU5MjA1NjM3NDExIgwAcO%2F9ci2i%2BwF5%2FgQqmAVe7MR%2F9%2B%2Bl6iaUGBoREAN96%2Fgk55XMaH%2FWnh3ZhYnW%2BfMeiL%2BcXoDP%2BhX4uYVe1mjAz49IqNCxWSGvPefUOVGe9p0kGuFeXte9trfUZ0GTSi%2BW8udqCPubkS4wfBa3KG6cEY%2FwBMAFM1r8Pb4uRkzc9cbe0opzarocNwiXm9vp6LLz68hlhIOsROS507LYQNgaGjU%2F2YYVf8r66W7ptXwY0FQbB9ns8xQneS3PUcKs8C4XV5SB2G5zxpHaR7fYYitAlJ6olPD2DtT4ey0w8kKT7DNoRPGRaVq%2BA%2Be49fuhJKvYUQOYYEx4ypCjs5FjvxPbXQ0%2Ftg%2B1FMSXJtl2cPZL1IjHWy%2BbDLfZXxKw%2FAAdqsdLNvGGPuG%2Bd6k8AJNx1v821gjj5%2FGlWYvJcowtA56BWQXbyzS6nfu9pVrQF6CJjm36KFhTMAk5XVsrBs%2Fz6PQdpQ6xGzzxKfZfAZRUQ7r3HX61PJqppvEymLDwyAszhBX2B%2FfztIQHvJKXIjV71cTKsqnVSCiWbyeGeW6HzpsYKymbZEUuLP6vHW2rxHiHDBvlMJdNE4dccDRbhp19sDRzK9PoKlQ%2BEXy7sLQBjOOdEvZnvs4r%2F8lxpqQLjkJ5ehMJVbOWUNn8MnAHRB%2FT%2FG7bfOcI6jsjquofJSyZp9642QfaFwhxVCCNpwDt8g1Tgpqr5E99Jz8cZ5JHU8FGFxJQtWwCqQ8DlFfW6SnRre8EzJwkczY%2Fxy1yXAyn6xyw1zctNjN9iMmpX30dv9cT5DjoG6bRcIdc4qoEwXdfkk7VObl5p79iIeTh4sEn%2Fcb16A9WOxDkSRL95Ythpl%2BvwsZ74zwzWKEqbNZ5zsGV3UYa2RS1ZYhBYsxPZky5xx5zFvjgiA1ckK3sMI6Z3MMGOrABHKhJR7ByF1sENDH%2BYAtqgXZcPv9VAbiPb1p0KKmRttQl5uOZxEDkTIp9cxmOKxQgac%2FyA5faZmWTSJUKtgWvo%2FS%2BU8dpErb5Fx5P8GT4vFK94Y3Jt%2BOO%2BjPRU1bxP%2B%2F%2B1ymblfK4nxed8Furv%2BL4WOmlyK7W0WNmtCs3s4lqiBoMgv8DwNlpDJozuyFKbLlTHJpV%2BdVc5WII2S%2FeWPAnh8fbvUTGmyHk59osmAJIHq0%3D&Expires=1752633985&AWSAccessKeyId=ASIA4QDFFSURWATBCRGR&Signature=3Bn2LcEsDYCjx%2FgJjPr7qZW%2B1PU%3D", "saveStateEnabled": false, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT301212017-V000700_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MIT301212017-V000700/MIT301212017-V000700.m3u8"], "autoAdvance": false, "streams": "1.00:JUvYnOFveXc", "saveStateUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa/handler/xmodule_handler/save_user_state", "completionEnabled": false, "showCaptions": "true", "duration": 605.33, "transcriptLanguage": "en", "ytMetadataEndpoint": ""}'
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="5411b45aed1143bfa53eb11746e289aa"></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_5411b45aed1143bfa53eb11746e289aa">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_5411b45aed1143bfa53eb11746e289aa">
<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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa/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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@5411b45aed1143bfa53eb11746e289aa/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@a5ac8680dbf646a59634d62d811e89f7" data-block-type="vertical" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="VerticalStudentView" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Bragg's Law Review</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a" data-block-type="video" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="XBlockToXModuleShim" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Bragg's Law Review</h3>
<div
id="video_4894e3f043c846cdbd6b468b74128e1a"
class="video closed"
data-metadata='{"publishCompletionUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a/handler/publish_completion", "end": 0.0, "lmsRootURL": "https://openlearninglibrary.mit.edu", "captionDataDir": null, "start": 0.0, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "speed": null, "prioritizeHls": false, "completionPercentage": 0.95, "ytApiUrl": "https://www.youtube.com/iframe_api", "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a/handler/transcript/available_translations", "generalSpeed": 1.0, "autoplay": false, "transcriptLanguages": {"en": "English"}, "ytTestTimeout": 1500, "transcriptTranslationUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a/handler/transcript/translation/__lang__", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/d3436e72dcae4ffaa368d7685c54deb0.png?x-amz-security-token=IQoJb3JpZ2luX2VjEDsaCXVzLWVhc3QtMSJIMEYCIQCXf972IlNqgXavmtdDM2cOn%2Fq8OXNinluO%2F%2BK8Tz0M8wIhAKdDmIflENNNALOOpgXsP4T8Nr0mrqKrZOM8ClpY%2B0LaKrsFCFMQBBoMODU5MjA1NjM3NDExIgwAcO%2F9ci2i%2BwF5%2FgQqmAVe7MR%2F9%2B%2Bl6iaUGBoREAN96%2Fgk55XMaH%2FWnh3ZhYnW%2BfMeiL%2BcXoDP%2BhX4uYVe1mjAz49IqNCxWSGvPefUOVGe9p0kGuFeXte9trfUZ0GTSi%2BW8udqCPubkS4wfBa3KG6cEY%2FwBMAFM1r8Pb4uRkzc9cbe0opzarocNwiXm9vp6LLz68hlhIOsROS507LYQNgaGjU%2F2YYVf8r66W7ptXwY0FQbB9ns8xQneS3PUcKs8C4XV5SB2G5zxpHaR7fYYitAlJ6olPD2DtT4ey0w8kKT7DNoRPGRaVq%2BA%2Be49fuhJKvYUQOYYEx4ypCjs5FjvxPbXQ0%2Ftg%2B1FMSXJtl2cPZL1IjHWy%2BbDLfZXxKw%2FAAdqsdLNvGGPuG%2Bd6k8AJNx1v821gjj5%2FGlWYvJcowtA56BWQXbyzS6nfu9pVrQF6CJjm36KFhTMAk5XVsrBs%2Fz6PQdpQ6xGzzxKfZfAZRUQ7r3HX61PJqppvEymLDwyAszhBX2B%2FfztIQHvJKXIjV71cTKsqnVSCiWbyeGeW6HzpsYKymbZEUuLP6vHW2rxHiHDBvlMJdNE4dccDRbhp19sDRzK9PoKlQ%2BEXy7sLQBjOOdEvZnvs4r%2F8lxpqQLjkJ5ehMJVbOWUNn8MnAHRB%2FT%2FG7bfOcI6jsjquofJSyZp9642QfaFwhxVCCNpwDt8g1Tgpqr5E99Jz8cZ5JHU8FGFxJQtWwCqQ8DlFfW6SnRre8EzJwkczY%2Fxy1yXAyn6xyw1zctNjN9iMmpX30dv9cT5DjoG6bRcIdc4qoEwXdfkk7VObl5p79iIeTh4sEn%2Fcb16A9WOxDkSRL95Ythpl%2BvwsZ74zwzWKEqbNZ5zsGV3UYa2RS1ZYhBYsxPZky5xx5zFvjgiA1ckK3sMI6Z3MMGOrABHKhJR7ByF1sENDH%2BYAtqgXZcPv9VAbiPb1p0KKmRttQl5uOZxEDkTIp9cxmOKxQgac%2FyA5faZmWTSJUKtgWvo%2FS%2BU8dpErb5Fx5P8GT4vFK94Y3Jt%2BOO%2BjPRU1bxP%2B%2F%2B1ymblfK4nxed8Furv%2BL4WOmlyK7W0WNmtCs3s4lqiBoMgv8DwNlpDJozuyFKbLlTHJpV%2BdVc5WII2S%2FeWPAnh8fbvUTGmyHk59osmAJIHq0%3D&Expires=1752633985&AWSAccessKeyId=ASIA4QDFFSURWATBCRGR&Signature=qWlLDLx2lbRkx%2F67Qm4zmMhaQ5s%3D", "saveStateEnabled": false, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT301212017-V005200_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MIT301212017-V005200/MIT301212017-V005200.m3u8"], "autoAdvance": false, "streams": "1.00:_t9ulwdSP6s", "saveStateUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a/handler/xmodule_handler/save_user_state", "completionEnabled": false, "showCaptions": "true", "duration": 640.93, "transcriptLanguage": "en", "ytMetadataEndpoint": ""}'
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="4894e3f043c846cdbd6b468b74128e1a"></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_4894e3f043c846cdbd6b468b74128e1a">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_4894e3f043c846cdbd6b468b74128e1a">
<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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a/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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4894e3f043c846cdbd6b468b74128e1a/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@63ba6823cbd041cb83672e590aecd343" data-block-type="vertical" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="VerticalStudentView" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Interactions of X-Rays and Atoms</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc" data-block-type="video" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="XBlockToXModuleShim" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Interactions of X-Rays and Atoms</h3>
<div
id="video_30d818c627cd40c0ad6171d2a5d391fc"
class="video closed"
data-metadata='{"publishCompletionUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc/handler/publish_completion", "end": 0.0, "lmsRootURL": "https://openlearninglibrary.mit.edu", "captionDataDir": null, "start": 0.0, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "speed": null, "prioritizeHls": false, "completionPercentage": 0.95, "ytApiUrl": "https://www.youtube.com/iframe_api", "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc/handler/transcript/available_translations", "generalSpeed": 1.0, "autoplay": false, "transcriptLanguages": {"en": "English"}, "ytTestTimeout": 1500, "transcriptTranslationUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc/handler/transcript/translation/__lang__", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/1ce3ae5c6df044fe87a7d1f89fd0c104.png?x-amz-security-token=IQoJb3JpZ2luX2VjEDsaCXVzLWVhc3QtMSJIMEYCIQCXf972IlNqgXavmtdDM2cOn%2Fq8OXNinluO%2F%2BK8Tz0M8wIhAKdDmIflENNNALOOpgXsP4T8Nr0mrqKrZOM8ClpY%2B0LaKrsFCFMQBBoMODU5MjA1NjM3NDExIgwAcO%2F9ci2i%2BwF5%2FgQqmAVe7MR%2F9%2B%2Bl6iaUGBoREAN96%2Fgk55XMaH%2FWnh3ZhYnW%2BfMeiL%2BcXoDP%2BhX4uYVe1mjAz49IqNCxWSGvPefUOVGe9p0kGuFeXte9trfUZ0GTSi%2BW8udqCPubkS4wfBa3KG6cEY%2FwBMAFM1r8Pb4uRkzc9cbe0opzarocNwiXm9vp6LLz68hlhIOsROS507LYQNgaGjU%2F2YYVf8r66W7ptXwY0FQbB9ns8xQneS3PUcKs8C4XV5SB2G5zxpHaR7fYYitAlJ6olPD2DtT4ey0w8kKT7DNoRPGRaVq%2BA%2Be49fuhJKvYUQOYYEx4ypCjs5FjvxPbXQ0%2Ftg%2B1FMSXJtl2cPZL1IjHWy%2BbDLfZXxKw%2FAAdqsdLNvGGPuG%2Bd6k8AJNx1v821gjj5%2FGlWYvJcowtA56BWQXbyzS6nfu9pVrQF6CJjm36KFhTMAk5XVsrBs%2Fz6PQdpQ6xGzzxKfZfAZRUQ7r3HX61PJqppvEymLDwyAszhBX2B%2FfztIQHvJKXIjV71cTKsqnVSCiWbyeGeW6HzpsYKymbZEUuLP6vHW2rxHiHDBvlMJdNE4dccDRbhp19sDRzK9PoKlQ%2BEXy7sLQBjOOdEvZnvs4r%2F8lxpqQLjkJ5ehMJVbOWUNn8MnAHRB%2FT%2FG7bfOcI6jsjquofJSyZp9642QfaFwhxVCCNpwDt8g1Tgpqr5E99Jz8cZ5JHU8FGFxJQtWwCqQ8DlFfW6SnRre8EzJwkczY%2Fxy1yXAyn6xyw1zctNjN9iMmpX30dv9cT5DjoG6bRcIdc4qoEwXdfkk7VObl5p79iIeTh4sEn%2Fcb16A9WOxDkSRL95Ythpl%2BvwsZ74zwzWKEqbNZ5zsGV3UYa2RS1ZYhBYsxPZky5xx5zFvjgiA1ckK3sMI6Z3MMGOrABHKhJR7ByF1sENDH%2BYAtqgXZcPv9VAbiPb1p0KKmRttQl5uOZxEDkTIp9cxmOKxQgac%2FyA5faZmWTSJUKtgWvo%2FS%2BU8dpErb5Fx5P8GT4vFK94Y3Jt%2BOO%2BjPRU1bxP%2B%2F%2B1ymblfK4nxed8Furv%2BL4WOmlyK7W0WNmtCs3s4lqiBoMgv8DwNlpDJozuyFKbLlTHJpV%2BdVc5WII2S%2FeWPAnh8fbvUTGmyHk59osmAJIHq0%3D&Expires=1752633985&AWSAccessKeyId=ASIA4QDFFSURWATBCRGR&Signature=kY%2BCRJ%2FFfYZxPNbmVsQ%2Bbrp%2BNqw%3D", "saveStateEnabled": false, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT301212017-V005300_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MIT301212017-V005300/MIT301212017-V005300.m3u8"], "autoAdvance": false, "streams": "1.00:LXFktc9K790", "saveStateUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc/handler/xmodule_handler/save_user_state", "completionEnabled": false, "showCaptions": "true", "duration": 1161.37, "transcriptLanguage": "en", "ytMetadataEndpoint": ""}'
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="30d818c627cd40c0ad6171d2a5d391fc"></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_30d818c627cd40c0ad6171d2a5d391fc">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_30d818c627cd40c0ad6171d2a5d391fc">
<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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc/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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@30d818c627cd40c0ad6171d2a5d391fc/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@eecb8c390ccb4114af6ff1b28c9dcf75" data-block-type="vertical" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="VerticalStudentView" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Diffraction from Crystals</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606" data-block-type="video" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="XBlockToXModuleShim" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Diffraction from Crystals</h3>
<div
id="video_4fa2671a379c4cbda712c6157d2c0606"
class="video closed"
data-metadata='{"publishCompletionUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606/handler/publish_completion", "end": 0.0, "lmsRootURL": "https://openlearninglibrary.mit.edu", "captionDataDir": null, "start": 0.0, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "speed": null, "prioritizeHls": false, "completionPercentage": 0.95, "ytApiUrl": "https://www.youtube.com/iframe_api", "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606/handler/transcript/available_translations", "generalSpeed": 1.0, "autoplay": false, "transcriptLanguages": {"en": "English"}, "ytTestTimeout": 1500, "transcriptTranslationUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606/handler/transcript/translation/__lang__", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/284bfd0ac88e45be849dce0385b4f911.png?x-amz-security-token=IQoJb3JpZ2luX2VjEDsaCXVzLWVhc3QtMSJIMEYCIQCXf972IlNqgXavmtdDM2cOn%2Fq8OXNinluO%2F%2BK8Tz0M8wIhAKdDmIflENNNALOOpgXsP4T8Nr0mrqKrZOM8ClpY%2B0LaKrsFCFMQBBoMODU5MjA1NjM3NDExIgwAcO%2F9ci2i%2BwF5%2FgQqmAVe7MR%2F9%2B%2Bl6iaUGBoREAN96%2Fgk55XMaH%2FWnh3ZhYnW%2BfMeiL%2BcXoDP%2BhX4uYVe1mjAz49IqNCxWSGvPefUOVGe9p0kGuFeXte9trfUZ0GTSi%2BW8udqCPubkS4wfBa3KG6cEY%2FwBMAFM1r8Pb4uRkzc9cbe0opzarocNwiXm9vp6LLz68hlhIOsROS507LYQNgaGjU%2F2YYVf8r66W7ptXwY0FQbB9ns8xQneS3PUcKs8C4XV5SB2G5zxpHaR7fYYitAlJ6olPD2DtT4ey0w8kKT7DNoRPGRaVq%2BA%2Be49fuhJKvYUQOYYEx4ypCjs5FjvxPbXQ0%2Ftg%2B1FMSXJtl2cPZL1IjHWy%2BbDLfZXxKw%2FAAdqsdLNvGGPuG%2Bd6k8AJNx1v821gjj5%2FGlWYvJcowtA56BWQXbyzS6nfu9pVrQF6CJjm36KFhTMAk5XVsrBs%2Fz6PQdpQ6xGzzxKfZfAZRUQ7r3HX61PJqppvEymLDwyAszhBX2B%2FfztIQHvJKXIjV71cTKsqnVSCiWbyeGeW6HzpsYKymbZEUuLP6vHW2rxHiHDBvlMJdNE4dccDRbhp19sDRzK9PoKlQ%2BEXy7sLQBjOOdEvZnvs4r%2F8lxpqQLjkJ5ehMJVbOWUNn8MnAHRB%2FT%2FG7bfOcI6jsjquofJSyZp9642QfaFwhxVCCNpwDt8g1Tgpqr5E99Jz8cZ5JHU8FGFxJQtWwCqQ8DlFfW6SnRre8EzJwkczY%2Fxy1yXAyn6xyw1zctNjN9iMmpX30dv9cT5DjoG6bRcIdc4qoEwXdfkk7VObl5p79iIeTh4sEn%2Fcb16A9WOxDkSRL95Ythpl%2BvwsZ74zwzWKEqbNZ5zsGV3UYa2RS1ZYhBYsxPZky5xx5zFvjgiA1ckK3sMI6Z3MMGOrABHKhJR7ByF1sENDH%2BYAtqgXZcPv9VAbiPb1p0KKmRttQl5uOZxEDkTIp9cxmOKxQgac%2FyA5faZmWTSJUKtgWvo%2FS%2BU8dpErb5Fx5P8GT4vFK94Y3Jt%2BOO%2BjPRU1bxP%2B%2F%2B1ymblfK4nxed8Furv%2BL4WOmlyK7W0WNmtCs3s4lqiBoMgv8DwNlpDJozuyFKbLlTHJpV%2BdVc5WII2S%2FeWPAnh8fbvUTGmyHk59osmAJIHq0%3D&Expires=1752633985&AWSAccessKeyId=ASIA4QDFFSURWATBCRGR&Signature=NrLqPRw4yEv46ZJ4oyxOE33SsmI%3D", "saveStateEnabled": false, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT301212017-V005100_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MIT301212017-V005100/MIT301212017-V005100.m3u8"], "autoAdvance": false, "streams": "1.00:RA8o9qGqISA", "saveStateUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606/handler/xmodule_handler/save_user_state", "completionEnabled": false, "showCaptions": "true", "duration": 773.63, "transcriptLanguage": "en", "ytMetadataEndpoint": ""}'
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="4fa2671a379c4cbda712c6157d2c0606"></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_4fa2671a379c4cbda712c6157d2c0606">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_4fa2671a379c4cbda712c6157d2c0606">
<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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606/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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@4fa2671a379c4cbda712c6157d2c0606/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@9b3943cf7e2f487eb908f8615a395a15" data-block-type="vertical" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="VerticalStudentView" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Diffraction Examples</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408" data-block-type="video" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-runtime-class="LmsRuntime" data-has-score="False" data-graded="False" data-request-token="5d4b420a61ee11f0b89a16fffd6cbf53" data-init="XBlockToXModuleShim" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Diffraction Examples</h3>
<div
id="video_3ed20d202d334602a12358ad32017408"
class="video closed"
data-metadata='{"publishCompletionUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408/handler/publish_completion", "end": 0.0, "lmsRootURL": "https://openlearninglibrary.mit.edu", "captionDataDir": null, "start": 0.0, "autohideHtml5": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "speed": null, "prioritizeHls": false, "completionPercentage": 0.95, "ytApiUrl": "https://www.youtube.com/iframe_api", "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408/handler/transcript/available_translations", "generalSpeed": 1.0, "autoplay": false, "transcriptLanguages": {"en": "English"}, "ytTestTimeout": 1500, "transcriptTranslationUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408/handler/transcript/translation/__lang__", "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/912d94d1b36244a69f58663296138eb0.png?x-amz-security-token=IQoJb3JpZ2luX2VjEDsaCXVzLWVhc3QtMSJIMEYCIQCXf972IlNqgXavmtdDM2cOn%2Fq8OXNinluO%2F%2BK8Tz0M8wIhAKdDmIflENNNALOOpgXsP4T8Nr0mrqKrZOM8ClpY%2B0LaKrsFCFMQBBoMODU5MjA1NjM3NDExIgwAcO%2F9ci2i%2BwF5%2FgQqmAVe7MR%2F9%2B%2Bl6iaUGBoREAN96%2Fgk55XMaH%2FWnh3ZhYnW%2BfMeiL%2BcXoDP%2BhX4uYVe1mjAz49IqNCxWSGvPefUOVGe9p0kGuFeXte9trfUZ0GTSi%2BW8udqCPubkS4wfBa3KG6cEY%2FwBMAFM1r8Pb4uRkzc9cbe0opzarocNwiXm9vp6LLz68hlhIOsROS507LYQNgaGjU%2F2YYVf8r66W7ptXwY0FQbB9ns8xQneS3PUcKs8C4XV5SB2G5zxpHaR7fYYitAlJ6olPD2DtT4ey0w8kKT7DNoRPGRaVq%2BA%2Be49fuhJKvYUQOYYEx4ypCjs5FjvxPbXQ0%2Ftg%2B1FMSXJtl2cPZL1IjHWy%2BbDLfZXxKw%2FAAdqsdLNvGGPuG%2Bd6k8AJNx1v821gjj5%2FGlWYvJcowtA56BWQXbyzS6nfu9pVrQF6CJjm36KFhTMAk5XVsrBs%2Fz6PQdpQ6xGzzxKfZfAZRUQ7r3HX61PJqppvEymLDwyAszhBX2B%2FfztIQHvJKXIjV71cTKsqnVSCiWbyeGeW6HzpsYKymbZEUuLP6vHW2rxHiHDBvlMJdNE4dccDRbhp19sDRzK9PoKlQ%2BEXy7sLQBjOOdEvZnvs4r%2F8lxpqQLjkJ5ehMJVbOWUNn8MnAHRB%2FT%2FG7bfOcI6jsjquofJSyZp9642QfaFwhxVCCNpwDt8g1Tgpqr5E99Jz8cZ5JHU8FGFxJQtWwCqQ8DlFfW6SnRre8EzJwkczY%2Fxy1yXAyn6xyw1zctNjN9iMmpX30dv9cT5DjoG6bRcIdc4qoEwXdfkk7VObl5p79iIeTh4sEn%2Fcb16A9WOxDkSRL95Ythpl%2BvwsZ74zwzWKEqbNZ5zsGV3UYa2RS1ZYhBYsxPZky5xx5zFvjgiA1ckK3sMI6Z3MMGOrABHKhJR7ByF1sENDH%2BYAtqgXZcPv9VAbiPb1p0KKmRttQl5uOZxEDkTIp9cxmOKxQgac%2FyA5faZmWTSJUKtgWvo%2FS%2BU8dpErb5Fx5P8GT4vFK94Y3Jt%2BOO%2BjPRU1bxP%2B%2F%2B1ymblfK4nxed8Furv%2BL4WOmlyK7W0WNmtCs3s4lqiBoMgv8DwNlpDJozuyFKbLlTHJpV%2BdVc5WII2S%2FeWPAnh8fbvUTGmyHk59osmAJIHq0%3D&Expires=1752633986&AWSAccessKeyId=ASIA4QDFFSURWATBCRGR&Signature=gnaH5unxny9LTJyp7Rf7DhxEnkM%3D", "saveStateEnabled": false, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT301212017-V002300_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MIT301212017-V002300/MIT301212017-V002300.m3u8"], "autoAdvance": false, "streams": "1.00:0pcvFgEnM0I", "saveStateUrl": "/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408/handler/xmodule_handler/save_user_state", "completionEnabled": false, "showCaptions": "true", "duration": 1103.13, "transcriptLanguage": "en", "ytMetadataEndpoint": ""}'
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="3ed20d202d334602a12358ad32017408"></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_3ed20d202d334602a12358ad32017408">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_3ed20d202d334602a12358ad32017408">
<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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408/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+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@video+block@3ed20d202d334602a12358ad32017408/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
© All Rights Reserved