Do you know Why grow lights are purple?

Do you know Why grow lights are purple?

Do you know Why grow lights are purple? Listen and follow http://www.uprtek.com/wp-content/uploads/2024/03/why-grow-lights-are-purple-en-v5.ogg Introduction Grow lights shine purple because they are arrays of bluish and reddish LEDs. Plants are most efficient at...
What is Light and where does it come from?

What is Light and where does it come from?

What is Light and where does it come from? Photo by Nadine Shaabana on Unsplash Listen and follow (english only) http://www.uprtek.com/wp-content/uploads/2024/03/What-is-light-en-v3.ogg Introduction – What is Light? We non-scientists take for granted that light...
What is Metamerism?

What is Metamerism?

What is Metamerism? Listen and follow http://www.uprtek.com/wp-content/uploads/2024/02/metamerism-eng-v13.ogg Introduction What is Metamerism?  Imagine you’re at a department store and find a shirt and pant combination. Despite being from different brands, they...