ماذا يحدث أثناء وضع المغناطيس مُكعب الشكل وسط برادة الحديد

[touiriki]

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xtf1/v/t1.0-9/s851x315/11014966_471432073010315_8531463946466808119_n.jpg ?oh=e0972b96bdfddbd919691fbf19280a90&oe=55BECF80&__gda__=1441686702_56c04bb6471028cfff8e55165f9f29c 5

https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-xat1/v/t1.0-9/11230906_471432066343649_2997101235632207618_n.jpg ?oh=81e640785aea737334417f743bd2fa99&oe=5605F9BB&__gda__=1442380644_7dbac5eb02de04b4091ff4ee16d4aaf f

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xta1/v/t1.0-9/11222791_471432076343648_3131184754750500546_n.jpg ?oh=f1ed20cc0e0364f318bd8f531b62355c&oe=55F0C007&__gda__=1442189966_e3ffb06bdc2719f948baf7178b7832e 6