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\nSunlight Is Way Older Than You Think. Here’s Why…\n

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\n\nPublisher:\n\nBe Smart\n\n\n
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\nIf the sun instantly switched off like a light bulb–which can’t happen, by the way–then we wouldn’t know for almost 8 and a half minutes. Light travels at the fastest speed there is, but it still takes almost 500 seconds to get to Earth....\nIf the sun instantly switched off like a light bulb–which can’t happen, by the way–then we wouldn’t know for almost 8 and a half minutes. Light travels at the fastest speed there is, but it still takes almost 500 seconds to get to Earth. That’s how long it would take before we knew the sun went dark. But the most amazing thing about the sunlight we see is it’s actually really old. SUPER old. AMAZINGLY OLD! Tens of thousands of years old. How is that possible? Because of the physics and mathematics of random walks.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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8:24
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Grade
12th - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nIt's Okay to Be Smart\n\n
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Date
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2020
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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space, light, astronomy, sunlight, nasa, nuclear fusion, gamma rays, distance, time, photons, speed, energy
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Additional Tags

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science, random walk, pbs, joe hanson, it's okay to be smart, sun, solar, physics, astrophysics, its ok to be smart, pbs digital studios, its okay to be smart, it's ok to be smart, sun score, light travels, walk, universe, earth, core, journey
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Classroom Considerations

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Video is ad-free
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Educator Ratings

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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Sunlight Is Way Older Than You Think. Here’s Why…\" href=\"/subscription/new\">\"Sunlight\n\n
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