Njengoba sonke sazi, izinto ezifana nesipontshi, ipulasitiki enegwebu, irabha kanye nezinkuni zivame ukukhethwa njengezinto zokugoba kanye nezinto zokulwa nokushayisana empilweni yangempela. Njengenye yezinto zensimbi ezinezimbotshana, yiziphi izinzuzo zokumunca amandla kanye nokubhafa?

Ngokwemibandela yabantu abavamile, into ngayinye emunca amandla kanye nebhafa inenani layo eliphakeme eliphethe umthwalo. Ngemuva kokuthi indawo yeyunithi yeqe ingcindezi ethile, umthelela wokumunca amandla kanye nokubhafa uzolahleka. Ngakho-ke, izipontshi, amapulasitiki anegwebu, irabha, i-aluminium enegwebu, njll. Ibanga lokucindezela okwamanje liyimpahla ebamba amandla emunca amandla ehamba phambili futhi esetshenziswa kakhulu.

Njengensimbi ekhanyayo kakhulu engantanta emanzini, igwebu le-aluminium linobukhulu obungu-0.2-0.4g/cm³, obucishe bube ngu-1/30 wokuminyana kwensimbi; nokho, ukuqina kwayo okugoba kuyizikhathi ezingu-1.5 kokwensimbi; ngaphansi kwesisindo esifanayo, Amandla okucindezela aphindwe izikhathi ezi-5 kunensimbi; ngesikhathi esifanayo, ukusebenza okudambisayo kwe-aluminium enegwebu izikhathi ezi-5-10 kunezensimbi, futhi i-aluminium enegwebu ene-porosity engaphezu kuka-80% ingakwazi ukumunca u-20J/cm³ wamandla lapho ikhubaza ngo-50%, okuyiyona engcono kakhulu. . Izinto ezimunca ukushaqeka.