Ultrasound is a sound that is too high for the human ear. Humans cannot hear it and thus cannot produce it, so ultrasound needs to be made with the help of different vibrating electronics. Devices that can use ultrasound are used all around the world and are famous for their usefulness in different fields, particularly […]

Tekaški čevlji so potrošni material, ki ga priporočljivo menjati ob iztrošenosti ali ob drugih primernih priložnostih. Vendar so tekaški čevlji pogosto stvar, katero si tekači vzamejo k srcu skoraj enako kot svoje najdražje osebe. Obrabljene copate za tek lahko vidimo na praktično vsaki tekaški stezi. To so tekaški čevlji, ki jih lastniki lepijo z lepilnimi […]