Most people are familiar with how a prism splits the light of the Sun into its component rainbow of colors. Research astronomers use instruments called spectrographs to split the light from celestial objects and measure its intensity at different wavelengths. These spectral observations can be used to determine temperature, composition, motion, and more. Imaging spectrographs extend the entire 2D view of an image into a third dimension of wavelength, and have greatly expanded the capacity to map the motions of gas and stars within galaxies. Dr. Law will present the history of this powerful type of instrument, highlight what it has taught us about the evolution of galaxies over the last 12 billion years, and discuss some of the exciting science that such instruments on board the James Webb Space Telescope are expected to deliver in the near future.
Speaker: David Law, Space Telescope Science Institute
Host: Dr. Frank Summers
Recorded live on April 4, 2017 from the Space Telescope Science Institute in Baltimore, MD, USA.
MORE INFO: http://hubblesite.org/about_us/public_talks/
STScI Webcast Links:
Frank Summers - News from the Universe:
https://webcast.stsci.edu/webcast/detail.xhtml?talkid=5583
David Law – 3D Spectroscopy and the Dynamics of Galaxies:
https://webcast.stsci.edu/webcast/detail.xhtml?talkid=5582
كل واحد فيكم له توأم في العالم !
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السعودية VS بريطانيا
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تخاوي ذا اليوتيوبر ولا لأ ؟ مع عبدالاله
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اخيرا بناكل ٨ برجرات !
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تحدي الكتابة بالصوت | فهد سال VS عبدالاله
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السب والقذف من مسلمين | #بكاء_حلا_الترك
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بحل جريمة قتل ؟!
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فهد سال VS محمد سال
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موقع الاختبار
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تحدي اللهجة الكويتية
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فهد سال VS بن باز | تحدي الكتابة الصوتية
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Infados by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
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Long Road Ahead by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
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Decisions by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
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Fantastic Dim Bar by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
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Artist: http://incompetech.com/
The Batman v Superman after credits scene that reveals why Superman isn’t in the Justice League Trailer… yet.
For more After Credits go to ►► http://www.howitshouldhaveended.com/aftercredits
Super Cafe T-Shirt available for LIMITED TIME! (only till April 15th 2017) Click the link to Pre-Order
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