The trick in the video where a plastic cup doesn't melt when there's water inside is explained by the concept of specific heat capacity. Specific heat capacity is a property of a substance that indicates how much heat energy is needed to raise the temperature of a given amount of that substance by 1 degree Celsius. Water has an exceptionally high specific heat capacity, about 4184 joules per kilogram per degree Celsius. This means it requires a significant amount of energy to increase the temper

Bloopers from “Raiders of the Lost Ark” (1981). One of the greatest adventure films of all time. Some would even call it a ‘perfect film’. It changed cinema and popular culture, even though it was not an easy sell at first, which isn’t surprising to me. Pre-release polling showed how difficult it is to advertise a film about a whip-wielding archeologist. But, it was the biggest box office hit of the year, which is very indicative of the film’s quality and entertainment value. It’s strange seeing

INDIANA JONES AND THE RAIDERS OF THE LOST ARK Bloopers & Deleted Scenes (1981)