Amakuru yinganda

Impamvu ituma matelas ya hoteri yoroha cyane: 1. Usibye matelas yoroheje, matelas yo muri hoteri ifite ibice byinshi byimifuka yigitanda kibyibushye, bizahinduka igorofa nziza isa na matelas, byimbitse kumva ubwishingizi no koroshya .2. Matelas ubusanzwe aryamye muri t ...Soma byinshi»

Yakozwe bwa mbere hagati ya za 1960 hagati yintebe yindege ya NASA, ifuro yo kwibuka ikozwe mubintu bita viscoelastic.Nyuma yo gukoreshwa muri matelas, iragenda ikundwa cyane kandi izwi na rubanda....Soma byinshi»