TED-Ed: Illuminating photography: From camera obscura to camera phone - Eva Timothy

The video explores the evolution of photography from its mysterious beginnings to its widespread accessibility. It starts with early image capture techniques like the camera obscura and Schulze's experiments. The birth of photography is marked by the daguerreotype and calotype processes. Despite initial challenges like long exposure times, innovations continued. George Eastman revolutionized photography with roll film and affordable cameras, making it a universal pastime. Today, photography is a ubiquitous part of life, with billions of photos taken annually.

Who was the Arab scientist that introduced the concept of the camera obscura?

• Ibn Sina

• Alhazen

• Al-Khwarizmi

• Al-Farabi

Which process allowed for multiple copies to be made from a single negative?

• Daguerreotype

• Calotype

• Tintype

• Ambrotype

Why did early photographs often feature people with straight faces?

• Smiling was not fashionable at the time

• Photographers instructed them not to smile

• Long exposure times made it hard to hold a smile

• Smiling was considered inappropriate

What innovation did George Eastman introduce to make photography more accessible?

• Instant cameras

• Plastic roll film

• Color film

• Digital cameras

Approximately how many photographs are taken each year in modern times?

• 380 billion

• 200 billion

• 500 billion

• 100 billion