¿Qué es la luz? ¿Por qué vemos colores?

The video explores the nature of light and color perception. It begins by explaining light as electromagnetic radiation and introduces the concept of photons. The electromagnetic spectrum is discussed, highlighting different wavelengths from gamma rays to radio waves. Human vision is explained, focusing on how we perceive colors through the reflection of light. The roles of rods and cones in the retina are detailed, emphasizing their function in color and intensity detection. The video compares human trichromatic vision with the vision of other animals, such as dogs and bees, and discusses the subjective nature of color perception influenced by culture and individual differences.

What is the speed at which a photon travels?

• 600,000 kilometers per second

• 450,000 kilometers per second

• 300,000 kilometers per second

• 150,000 kilometers per second

How do objects determine the color we perceive?

• By altering the frequency of light

• By changing the speed of light

• By absorbing and reflecting certain wavelengths

• By emitting their own light

What is the primary function of rods in the human eye?

• Focusing light

• Adjusting to bright light

• Sensing light intensity

• Detecting color

How many types of cones do humans typically have?

• One

• Two

• Three

• Four

Which animal is known to have 12 types of photoreceptors?

• Mantis shrimp

• Cat

• Bee

• Dog