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The science of the light

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YCHive

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58,901 次观看 • 4 个月前 •via X (Twitter)

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As the light passes from water to air, it is refracted. At a critical angle, the light bounces off the internal boundary of the water stream: it's called total internal reflection [📹JaDropping Science:
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As the light passes from water to air, it is refracted. At a critical angle, the light bounces off the internal boundary of the water stream: it's called total internal reflection [📹JaDropping Science:

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In science, we speak about diffuse light if the sunlight is scattere by fog or a dense forest, making the light more uniform and less harsh and bright. In life, we speak of a magical place [📹 Mitch Crispe]
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29 years after the 1994 Genocide against the Tutsi, we lit candles of hope for Rwanda. The light for lost lives. The light for peace. The light of hope. The light for future generations. The light to make the darkness disappear. #Ourpast23 #Ourpast2023 #Kwibuka29
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"Many Marxists reject the entire field of political science. Because they see their theory is the only valid science of history."
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The path of the just is as the mornings shining light, shining ever brighter till the full light of day 🕊️
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A prosperous future is intertwined with science and innovation. And right now, our science needs rebuilding. Help us restore the heart of discovery. Support the Weizmann Institute of Science. DONATE NOW >>
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This is how far science has come Mice can be engineered so that shining a light activates a very specific subset of neurons Shining the light in this case induces a 'wet dog shake' - a behaviour shared by many hairy mammals, from mice to bears This is called optogenetics - and that's how we know the precise neural pathway that explains how wet dogs shake Zhang et al in Science:
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