#light-sensitive

[kecobe]

Untitled László Moholy-Nagy (Hungarian; 1895–1946) Weimar, 1923–25 Photogram Grisebach, Berlin, Germany

[oaresearchpaper]

Camellia sinensis is one of the major commercial crops that is broadly grown in many countries such as Asia, Africa, and Latin America. It is utilized in the production of beverages that are non-alcoholic and consumers friendly. The leaves of tea plants are green, but during the plant evolution under environmental stress, a variety of complex mechanisms are developed, leading to variations in leaf color. The tea plant is considered to be a light-sensitive plant. In this review, we summarized the mechanism of how light has crucial effects on the photosynthetic machinery of the tea plant and the accumulation of specialized metabolites such as carotenoids, flavonoids, caffeine, and chlorophyll which ultimately affects its development. There is a strong correlation between light intensity, photosynthesis, and the development of tea plants. High intensity of light induces changes in phytochrome which inhibit the chlorophyll synthesis in tea plants due to the photosensitivity of chlorophyllide an oxidase and coproporphyrinogen III oxidase; leaf etiolation can worsen while under the moderate shade, the color of the leaf turns to green, the accumulation of chlorophylls and Carotenoids biosynthesis also increases under medium shade, due to upregulation of supreme carotenoids-regulating genes, while extreme shading downregulates them, which offers a significant approach for tea plant cultivation and marketing.

[nightjartransmittranscend]

Just remembered this: Angry at my Dad

Seriously, when I was younger I used to squint all the time, so much that my dad would yell at me about it (who the hell yells at their kid for squinting?!)

But I squinted because everything was too bright. And my eyes never would adjust, not completely. Hours after I'd gone outside, I'd still have to squint.

No one even thought to tell me that you could just be more sensitive to light than others. I thought something was wrong with me because it hurt to not squint, and my parents just thought I was playing around?

But yeah, that's one of the things I'm still a little ticked about, that and the visene (eyedrops) ordeal.

[triviaproofing]

#139: “Human eyes are so sensitive that on a clear night when there is no moon, a person sitting on a mountain peak can see a match struck 50 miles away.”

Plausible.

Human eyes are indeed so sensitive that they can respond to a single photon (the photon is the equivalent of the atom for light).

But can people see something that’s 50 miles away? Yes. It’s called heat lightning. This happens on clear nights, usually. If there’s a lightning storm happening 50 miles away, the sound won’t carry, but the light will. Lightning is still bright, compared to a lit match, but under the circumstances given in this factoid, it’s plausible.