A third type of perm is an exothermic perm. It's a self-timing, self-heating perm and is considered one of the easiest perms to get. Exothermic perms work best for thick, resistant hair and can give you strong, long-lasting curls. They work faster than other types of perms. But they...
Exothermic and endothermic reactions Both reactions are basically accompanied by a turnover of energy. If thermal energy is released in the form of heat during a reaction, we speak of an exothermic (ex = outward, ther...
Cold processmay also use a heat source but it’s used to liquefy solidified oils for mixing. The real saponification comes from an exothermic heat reaction between the fatty acids of the oils and and a lye (“base”) they’re mixed with. Cold process soaps take about a day to “cook”...
is that a U-lock in your pocket?does a lock like that provide enough securityfor a bike like that trend cycles tend to come around on an elevator with a guy who actually stinks more than I doand he’s not a messenger socially acceptable but creepy dirty laundrydigging deep to pull from...
they use a very high phosphorous iron ore. And it was a Englishman by the name of Henry BESSEMER who in effect invented the Bessemer furnace, a large, snorting and spark generating cupola type furnace where the phosphorus generated much of the heat due to a so-called exothermic reaction. Ag...