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Duration:05:34
Uploaded:2022-02-01
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The technology we use for space exploration gets more advanced all the time, but some of our most ambitious programs actually rely on optics invented in the 19th century for lighthouses.

Hosted By: Hank Green

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Sources:
https://climate.nasa.gov/news/991/generating-electricity-from-20-suns/
https://solarsystem.nasa.gov/missions/deep-space-1/in-depth/
https://www.space.com/43044-deep-space-1.html
https://directory.eoportal.org/web/eoportal/satellite-missions/pag-filter/-/article/deep-space-1
https://www.nasa.gov/mission_pages/tdm/sep/index.html

https://spinoff.nasa.gov/Spinoff2012/ee_6.html
https://www.jpl.nasa.gov/nmp/ds1/tech/scarlet.html
https://www.qrg.northwestern.edu/projects/vss/docs/propulsion/1-what-is-the-difference.html
https://www.britannica.com/biography/Augustin-Jean-Fresnel
https://uslhs.org/fresnel-lens
http://www.modulatedlight.org/optical_comms/fresnel_lens_comparison.html

Images:
https://www.istockphoto.com/photo/lighthouse-gm115630391-4271509
https://commons.wikimedia.org/wiki/File:Deep_Space_1_clean_(PIA04242).png
https://commons.wikimedia.org/wiki/File:Animation_of_Deep_Space_1_trajectory.gif
https://commons.wikimedia.org/wiki/File:Ion_Engine_Being_Installed_in_High_Vacuum_Tank_-_GPN-2000-000597.jpg
https://www.istockphoto.com/photo/view-of-the-planet-saturn-with-rings-cassini-probe-in-exploration-around-the-planet-gm1169625832-323404815
https://www.jpl.nasa.gov/news/press_kits/ds1launch.pdf
https://commons.wikimedia.org/wiki/File:Ion_engine.svg
https://commons.wikimedia.org/wiki/File:Ion_Engine_Test_Firing_-_GPN-2000-000482.jpg
https://commons.wikimedia.org/wiki/File:NASA_NEXT_Ion_thruster.712983main_NEXT_LDT_Thrusterhi-res_full.jpg
https://commons.wikimedia.org/wiki/File:Augustin_Fresnel.jpg
https://www.shutterstock.com/image-vector/convex-concave-lens-vector-illustration-diagrams-1663543309
https://commons.wikimedia.org/wiki/File:Fresnel_lens.svg
https://commons.wikimedia.org/wiki/File:Fresnel_lighthouse_lens_diagram.png
https://commons.wikimedia.org/wiki/File:Collimator2.svg
https://www.istockphoto.com/photo/lighthouse-and-ships-in-the-night-gm181073404-25372414
https://commons.wikimedia.org/wiki/File:Magnifying-fresnel-lens.jpg
https://commons.wikimedia.org/wiki/File:Black_light_test_of_Dawns_solar_cells.jpg
https://www.jpl.nasa.gov/nmp/ds1/tech/scarlet.html
https://www.jpl.nasa.gov/images/pia04496-artists-concept-of-deep-space-1-encounter-with-comet-borrelly
https://www.istockphoto.com/photo/row-of-solar-panels-on-roof-at-home-gm1069245432-286023882
https://commons.wikimedia.org/wiki/File:Amonix7700.jpg
https://commons.wikimedia.org/wiki/File:AEHF_1.jpg
https://commons.wikimedia.org/wiki/File:Lunar_Orbital_Platform-Gateway.jpg
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