maria nikolaeva vasily valitov victor naumka yuliya kuvabina first channel thermal mug , of course, youll too, but now it’s late in the fall, especially in winter and there’s simply no price, because it inclines hot, tea and coffee non-alcoholic mulled wine. well, how many ideas are born at once, in fact, it is environmentally friendly and conveniently economical, because two in one, but the main thing is to choose the right one and correctly. have you ever tried to cut a thermal mug and find out why it costs 1,800 rubles. and this is 400 4.5 times cheaper, due to which we will find out with students in the laboratory of composite materials of plekhanov university for comparison, we will take the option of the average price per thousand, while we need whole mugs. we take them out with boiling water to the street and we look at how effectively it keeps the temperature, the brighter the color, the more heat the mug emits into the environment on the screen of the thermal imager, the cheapest model literally burns all bright yellow . and this is bad, so the heat leaves the water. inside, a