This upside down glass started to 'sing' (vibrate) loudly on its own, due to bubbles being formed and broken under its rim. The conditions such as temperature, presence of moisture, surface type, glass type and position, etc, has to be exact for this to happen.
Added
01/10/2022
Location
Veldhoven, the Netherlands
UID
7334140080
Resolution
1280x720
Orientation
HORIZONTAL
Length
00:46
Footage type
POV
TEMPERATURE
SOUND
FIZZLE
BUBBLES
UPSIDE DOWN
SCIENCE
GLASS
INDOORS
DAY
INDOOR
COOL
LAUGH
FUN
GOOD VIBES
YOUTUBE
SOUND
MUSIC
GLASS
SING
ENGLISH
PLAYING
SINGING
HOME
AMAZED
ADORABLE
SHOCKED
SURPRISED
EXCITED
SATISFYING
RELATABLE
FUNNY
CUTE
HEALTH
GAMING
MARBLE
TILES
TABLE
HEAT
BUBBLE
BUBBLING
FIZZING
KITCHEN
STRANGE
BEAUTY
FASHION
KIDS
TEENS
WIN
REACTION
COMEDY