Skip to main content

Explore All records Timeline Places Map About

Search records, people, places…

Public site

LANG

Explore All records Timeline Places Map About

Explore the World's Records

GLOBAL RECORDS DATABASE

Home All records Timeline Places About

© 2026 JiLuDB. All rights reserved.

ExitTechnology6 / 516

JiLuDB /

Greatest Recorded Secchi-Disk Visibility in Seawater

#00515 / Technology

Quietest Anechoic Chamber by Measured Ambient Noise

Verified

-24.9dBA

Orfield Laboratories Anechoic Chamber

Orfield Laboratories Anechoic Chamber

Orfield Laboratories' anechoic chamber in Minneapolis, Minnesota, recorded an ambient level of −24.9 dBA on 19 November 2021, establishing the quietest formally measured anechoic-room record.

JiLuDB /

Largest Single Art Canvas by Area

Swipe up to discover the next record

View full record