Inside the world's quietest room

The video explores the world's quietest place, an anechoic chamber at Minneapolis Orfield Laboratory. The chamber is designed to absorb sound, with a mesh floor, soundproofing wedges, and a meshed ceiling. It has a sound level of -9.4 decibels, making it virtually soundless to humans. Inside, one can hear internal body sounds, and other senses become more sensitive.

What is the primary feature of the anechoic chamber's design?

• Glass ceiling

• Soundproofing wedges

• Reflective walls

• Wooden floor

Why is the anechoic chamber considered virtually soundless?

• It is filled with water

• It is made of metal

• It has a sound level below human hearing threshold

• It is located underground

What is the sound level inside the anechoic chamber?

• -9.4 decibels

• 0 decibels

• 10 decibels

• 20 decibels

Which of the following sounds can you hear inside the chamber?

• Music

• Your own heartbeat

• Birds chirping

• Traffic noise

What happens to other senses when inside the anechoic chamber?

• They become more sensitive

• They remain unchanged

• They stop functioning

• They become less sensitive