cht+production+of+chocolate+and+bubble+gum

=For the video how is chocolate made, to get the desired shape of chocolate like love shape or rabbit shape, first have to prepare the molds. The molds are made in vaccum and high temperature then cold it. Every step in the process are very important to produce a nice chocolate. Of course rheology properties and flow behavior of material are important in the process. Without them, we can't get the nice bear bear shape chocolate and the chocolate can't be pumped into the molds. Then the 2nd video bubble gum-How is made, can't believe that the bubble gum is made from just simple ingredients like plastic and rubber. Of course rheology happen in the production of bubble gum. The mixture of plastic and rubber is turn into special shape by the machine, and this is rheology. Besides, the portion of each ingredients have to accurate so that it does not affect the viscosity of the mixture. For example, it will be too sticky if too much rubber is put. And 1 thing i would like to mention after seeing all this video, the engineers are so sooo clever to make all this machine!! Thumbs up for them!=