An air wedge is an important tool which can be used to weaken otherwise secure doors. You can use air wedges to create space for other tools such as
Air wedge interference
Interference with air wedge
Access Tools Air Wedge
KLOM U-Shape Air Pump Wedge - GOSO Lock Picks
Air Wedge Lockout Tool
The Easy Air Wedge - Professional Builder
optics - Some doubts related to interference of light by air wedge - Physics Stack Exchange
1pc Airbag Cushioned Hand Pump Auto Air Wedge Inflatable Car Door Opener Diagn Shytmv
How Interference fringes are produced in WEDGE SHAPED film with Animation & derivation, 👌, Physics