Illuminating the Universe: The History of Light

The video explores the evolution of our understanding of light and vision, starting from ancient Greek theories to modern quantum theory. It highlights key discoveries, such as Ibn Al-Haytham's experiments, Romer's measurement of light speed, Newton's color theory, and the development of the electromagnetic spectrum. The video concludes with the dual nature of light as both a wave and a particle, setting the stage for modern quantum theory.

What did the ancient Greeks believe about vision?

• Vision was a result of light entering the eyes.

• Vision was a mystical process.

• Vision was caused by the reflection of light.

• Vision was due to rays emitted from the eyes.

Who was the first to challenge the Greek theories of vision with experiments?

• Euclid

• Ole Romer

• Isaac Newton

• Ibn Al-Haytham

What did Ole Romer discover about light?

• Light travels at a speed.

• Light is a wave.

• Light is instantaneous.

• Light is a particle.

What did Newton's experiments with prisms demonstrate?

• Light travels instantaneously.

• Light is a particle.

• Light is a wave.

• Color is an intrinsic property of light.

What did William Herschel discover beyond the visible spectrum?

• Gamma rays

• X-rays

• Infrared light

• Ultraviolet light

Who unified electricity and magnetism, showing they are part of the same phenomenon as light?

• Isaac Newton

• James Clerk Maxwell

• Albert Einstein

• Max Planck

What concept did Max Planck introduce to explain the distribution of energy across the spectrum?

• Electromagnetic theory

• Wave theory

• Particle theory

• Quantum theory