The phrase "explosive burst" refers to a sudden and powerful release of energy or force. It suggests something happening very quickly and with a lot of strength, like an explosion. Full definition
Clear evidence now suggests that the heating mechanism depends on regular, but intermittent explosive bursts of heat, rather than on continuous gradual heating. (sciencedaily.com)
Fast - twitch muscle fibers are used in explosive bursts of power, for example when working with heavy loads or during sprinting, while slow - twitch fibers enable long endurance feats such as high - rep sets with light loads or distance running. (fitnessandpower.com)
Observations of young stars that are still surrounded by their gas disks demonstrate that those similar in size to our own Sun often undergo periodic explosive bursts, about 100 years in duration, during which the star's luminosity increases. (sciencedaily.com)