Physiqs

Is light energy? if so, it cannot be created or destroyed according to the law of conservation of energy, this video seems to say otherwise (look at 0:25-0:30) link removed per rule 2.7

Lol change the title from carbonhydrates to carbohydrates! (ur in the second year of molecular biology)

Hey guys and i have a project in school due next month requiring me to make an insulation box relating to the topic ' Heat ' i need to make use of the transfer processes (conduction, convection and radiation) to make an insulation box so that if you put a hot thing inside, it wont cool off so quickly, the dimensions are 20cmx20cmx20cm and plz tell me what material i should use for it plz! thx ~Physiqs