The 2012 safes

Safes 29: “Harishonim” High school Hertzelia
Locking mechanism design:The Doppler effect and Bernoulli law
Explanation file

Safes 30: Ein Harod
Locking mechanism design:Stress-induced birefringence and reflection of light
Emek Harod
Explanation file

Safes 31: Mosenzon High, Hod Hasharon
Locking mechanism design: Non-Newtonian fluid
Explanation file

Safes 32: Mekif Hakirya High, Ashdod
Locking mechanism design:Aurika
Explanation file

Safes 33: Armageddon
Locking mechanism design: Rothberg High School, Ramat ha-Sharon
Explanation file

Safes 34: Menahem Begin High, Zefat
Locking mechanism design:Electricity and Optics
Explanation file

Safes 35: Hof HaCarmel Comperhansive School Ma'agan Michael
Locking mechanism design:Young's Lost Treasure (wave interference and electrostatic induction)
Explanation file

Safes 36: Brener High, Petah-Tiqva
Locking mechanism design:Puzzle
Brener High, Petah-Tiqva
Explanation file

Safes 37: Basmat Tab’un High, Basmat Tab’un
Locking mechanism design:Density and Interference
Basmat Tab’un High, Basmat Tab’un
Explanation file

Safes 38: Harel High, Mevaseret Zion
Locking mechanism design:Glass waveguide
Explanation file

Safes 39: Ben Gurion High, Petah-Tiqva
Locking mechanism design:Eddy currents
Explanation file